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  • ?? ?? ????? ??? ?????

    다시 한번 안드로이드 디자인 가이드라인 안드로이드 디자인 가이드라인은 안드로이드 앱을 디자인할 때 바로 참고할 수 있는 첫 번째 자료이며 컨텐츠 중심 / 반응형 디자인과 같은 최신의... From: Google Developers Views: 23 0 ratings Time: 41:59 More in Science & Technology

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  • ?? ???, ??? ?? ?? ???

    구글 플레이, 성공을 위한 최적 플랫폼 구글 플레이를 통한 성공의 가능성과 크기를 실제 사례를 통해 알아보고, 이를 위해 구글 플레이팀과 함께 협력하는 방법에 대해 알아봅니다. From: Google Developers Views: 5 0 ratings Time: 31:24 More in Science & Technology

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  • jaas authentication using jetty and gwt

    - by dubreakkk
    Hello, I am trying to use JAAS to authenticate my users. My project is in GWT v2, which runs jetty. I use eclipse for development. From http://code.google.com/p/google-web-toolkit/issues/detail?id=4462 I found out that jetty doesn't like any realm definitions in web.xml, so I moved them to jetty-web.xml. I keep getting ClassNotFound exceptions so I followed the advice here: communitymapbuilder.org/display/JETTY/Problems+with+JAAS+in+Jetty+6.0.0 However, I am still getting ClassNotFoundExceptionsHere in my jetty-web.xml file. How do I configure jetty to work jaas in GWT projects? My jetty-web.xml file: <Configure class="org.mortbay.jetty.webapp.WebAppContext"> <Set name="serverClasses"> <Array type="java.lang.String"> <Item>-org.mortbay.jetty.plus.jaas.</Item> <Item>org.mortbay.jetty</Item> <Item>org.slf4j.</Item> </Array> </Set> <Get name="securityHandler"> <Set name="userRealm"> <New class="org.mortbay.jetty.plus.jaas.JAASUserRealm"> <Set name="name">xyzrealm</Set> <Set name="LoginModuleName">xyz</Set> <Set name="config"><SystemProperty name="jetty.home" default="."/>/WEB-INF/classes/jdbcRealm.properties</Set> </New> </Set> <Set name="authenticator"> <New class="org.mortbay.jetty.security.FormAuthenticator"> <Set name="loginPage">/login.jsp</Set> <Set name="errorPage">/error.jsp</Set> </New> </Set> </Get> Error I am receiving: [WARN] Failed startup of context com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload@1fcef4f7{/,/home/dev/workspace/project/war} java.lang.ClassNotFoundException: org.mortbay.jetty.plus.jaas.JAASUserRealm at java.lang.ClassLoader.findClass(ClassLoader.java:359) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:352) at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) at org.mortbay.util.Loader.loadClass(Loader.java:91) at org.mortbay.xml.XmlConfiguration.nodeClass(XmlConfiguration.java:216) at org.mortbay.xml.XmlConfiguration.newObj(XmlConfiguration.java:564) at org.mortbay.xml.XmlConfiguration.itemValue(XmlConfiguration.java:907) at org.mortbay.xml.XmlConfiguration.value(XmlConfiguration.java:829) at org.mortbay.xml.XmlConfiguration.set(XmlConfiguration.java:278) at org.mortbay.xml.XmlConfiguration.configure(XmlConfiguration.java:240) at org.mortbay.xml.XmlConfiguration.get(XmlConfiguration.java:460) at org.mortbay.xml.XmlConfiguration.configure(XmlConfiguration.java:246) at org.mortbay.xml.XmlConfiguration.configure(XmlConfiguration.java:182) at org.mortbay.jetty.webapp.JettyWebXmlConfiguration.configureWebApp(JettyWebXmlConfiguration.java:109) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1217) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:513) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448) at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:447) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:115) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:222) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) at com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:543) at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:421) at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1035) at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:783) at com.google.gwt.dev.DevMode.main(DevMode.java:275)

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  • How do I install gfortran (via cygwin and etexteditor) and enable ifort under Windows XP?

    - by bez
    I'm a newbie in the Unix world so all this is a little confusing to me. I'm having trouble compiling some Fortran files under Cygwin on Windows XP. Here's what I've done so far: Installed the e text editor. Installed Cygwin via the "automatic" option inside e text editor. I need to compile some Fortran files so via the "manage bundles" option I installed the Fortran bundle as well. However, when I select "compile single file" I get an error saying gfortran was missing, and then that I need to set the TM_FORTRAN variable to the full path of my compiler. I tried opening a Cygwin bash shell at the path mentioned (.../bin/gfortran), but the compiler was nowhere to be found. Can someone tell me how to install this from the Cygwin command line? Where do I need to update the TM_FORTRAN variable for the bundle to work? Also, how do I change the bundle "compile" option to work with ifort (my native compiler) on Windows? I've read the bundle file, but it is totally incomprehensible to me. Ifort is a Windows compiler, invoked simply by ifort filename.f90, since it is on the Windows path. I know this is a lot to ask of a first time user here, but I really would appreciate any time you can spare to help.

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  • User Guide to Dropbox Shared Folders

    - by Matthew Guay
    Dropbox is an incredibly useful tool for keeping all your files synced between your computers and the cloud.  Here we’re going to look at how you can keep all of your team on the same page with Dropbox shared folders. Creating a Shared Folder Setting up a shared folder in Dropbox is easy.  Add the files you want to share to a folder in Dropbox on your computer, then right-click in the folder, select Dropbox, and then choose Share This Folder.   Alternately, log into your Dropbox account online, click the drop-down menu beside the folder you want to share, and click Share this folder. Now, enter the email addresses of the people you want to share the folder with, and optionally enter a message explaining why you’re sharing the folder. The people you invite will receive an email inviting them to view and join the shared folder.  If they haven’t signed up for Dropbox, they can directly signup; otherwise, they can simply log into their Dropbox account and start adding or editing files. Shared folders have a slightly different icon in your Dropbox.  Notice the shared folder on the left has an icon with 2 people, while the folder on the right that is not shared, shows previews of its contents. See Your Shared Folder’s History Whenever your collaborators with your shared folders add or change files, you will see a tooltip notification telling you what changed. You can also view the changes online.  Log into your Dropbox account in your browser and select the Events tab.  This shows all changes to your Dropbox, but you can view only the changes in your shared folder by selecting its name on the left sidebar. Now you can see all recent changes to your folder, and can also see who added or removed each file.   On the bottom of the page, you can even add a comment that all the collaborators will see. If someone deleted a file you still need, you can restore it by clicking its link in this online history.  Or, you can view any deleted files by right-clicking in your Dropbox folder in Explorer.  Select Dropbox, and then click Show Deleted Files.   Get Notified When a Change is Made You’re not always in front of your computer; you’ve got a life beyond your projects, after all (at least hopefully).  If you really want to stay connected to what’s happening with your project, though, you can easily do that no matter where you are. Your shared Dropbox folder’s history page offers an RSS feed of all changes to the folder.  Click  the Subscribe to this feed hyperlink. Now, in the popup that opens, click “Copy to clipboard” so you can use this RSS feed. You can subscribe to RSS feeds through many web browsers, email clients, dedicated feed readers, and more.  In Firefox, Internet Explorer 7/8, or Opera, you can paste the feed address into your address bar and subscribe to the feed directly in your browser.   However, subscribing to the feed in a desktop application won’t help you much when you’re away from your computer.  One great option is to subscribe in the popular Google Reader.  Then you can check your feed from any browser, on any computer or mobile device. To add your Dropbox feed to Google Reader, log into Google Reader (link below), click Add a subscription on the top left, paste your RSS feed from Dropbox, and click Add.   Now you can see any changes to files or folders in Google Reader. You can even add your feed to your iGoogle homepage.  Click the Add it Now button on the right in the front page of Google Reader to add your feeds to iGoogle.   Now you can see updates on your files from your homepage.  If you’re using a different computer, just login to your Google account to see what’s happening. You can also access your Google Reader feeds from many programs and apps for most major Smartphones including iPhone, Windows Phone, and Blackberry. Receive a Tweet or Text When Changes are Made If you’re a hyper-connected individual, chances are you send and receive tweets on the go.  If so, this might be the best way for you to get notified when changes are made to your Dropbox shared folder.  To do this, first create a new Twitter account to publish your changes through.  If you don’t want the whole world to see your updates, click Settings and set your new Twitter account to Private. Once the new account is created, follow it with your normal Twitter account so you’ll see updates. Now, let’s publish our Dropbox RSS feed to Twitter.  Create an account with Twitterfeed (link below). Once your account is setup, add your feed to it.  Name your feed, and enter your Feed address from Dropbox.  Click Advanced Settings to make your feed work just like you want. In Advanced Settings, change the frequency to “Every 30 mins” to make sure you’re updated on changes as quick as possible.  You can also change other settings if you like. Click “Continue to Step 2”, and then click Twitter under the available services to add your account. Make sure your signed into your new Twitter account, and then click Authenticate Twitter. Allow the application. Now, finally, click Create Service. Whenever a change is made, you will receive a tweet via your new Twitter account.  And since you can receive tweets via text message or many mobile applications, you’ll never be very far away from your Dropbox changes!   Conclusion Dropbox shared folders are a great way to keep your whole team working together on the same files in a project.  And with these handy tricks, you can keep up with your shared files wherever you are! There are a lot of cool things you can do with Dropbox make sure to check out our posts on adding Dropbox to the Windows 7 Start menu, Accessing Dropbox files from Chrome, and Syncing your Pidgin Profile Across Multiple PCs. Links Signup or access your Dropbox account Google Reader Tweet your feed with Twitterfeed Similar Articles Productive Geek Tips How to Add and Manage Shared Folders on Windows Home ServerManage User Accounts in Windows Home ServerAdd "My Dropbox" to Your Windows 7 Start MenuComplete Guide to Networking Windows 7 with XP and VistaMoving Your Personal Data Folders in Windows Vista the Easy Way TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Office 2010 reviewed in depth by Ed Bott FoxClocks adds World Times in your Statusbar (Firefox) Have Fun Editing Photo Editing with Citrify Outlook Connector Upgrade Error Gadfly is a cool Twitter/Silverlight app Enable DreamScene in Windows 7

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  • "Class ref in pre-verified class resolved to unexpected implementation" when running android tests i

    - by Mike
    I have a module that builds an app called MyApp. I have another that builds some testcases for that app, called MyAppTests. They both build their own APKs, and they both work fine from within my IDE. I'd like to build them using ant so that I can take advantage of continuous integration. Building the app module works fine. I'm having difficulty getting the Test module to compile and run. Using Christopher's tip from a previous question, I used android create test-project -p MyAppTests -m ../MyApp -n MyAppTests to create the necessary build files to build and run my test project. This seems to work great (once I remove an unnecessary test case that it constructed for me and revert my AndroidManifest.xml to the one I was using before it got replaced by android create), but I have two problems. The first problem: The project doesn't compile because it's missing libraries. $ ant run-tests Buildfile: build.xml [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -install-tested-project: [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 1 source file to /Users/mike/Projects/myapp/android/MyApp/bin/classes -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyApp/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyApp-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk onto default emulator or device... [exec] 1567 KB/s (288354 bytes in 0.179s) [exec] pkg: /data/local/tmp/MyApp-debug.apk [exec] Success -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/gen [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/bin [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/bin/classes -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 5 source files to /Users/mike/Projects/myapp/android/MyAppTests/bin/classes [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:8: package com.google.gson does not exist [javac] import com.google.gson.JsonElement; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:9: package com.google.gson does not exist [javac] import com.google.gson.JsonParser; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:11: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class GsonTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:6: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:7: package roboguice.util does not exist [javac] import roboguice.util.RoboLooperThread; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:11: package com.google.gson does not exist [javac] import com.google.gson.JsonObject; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:15: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class HttpTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:12: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class LinksTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:5: package roboguice.util does not exist [javac] import roboguice.util.RoboAsyncTask; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:6: package roboguice.util does not exist [javac] import roboguice.util.RoboLooperThread; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:12: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class SafeAsyncTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectResource': class file for roboguice.inject.InjectResource not found [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectResource' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView': class file for roboguice.inject.InjectView not found [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:15: cannot find symbol [javac] symbol : class JsonParser [javac] location: class com.myapp.test.GsonTest [javac] final JsonParser parser = new JsonParser(); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:15: cannot find symbol [javac] symbol : class JsonParser [javac] location: class com.myapp.test.GsonTest [javac] final JsonParser parser = new JsonParser(); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:18: cannot find symbol [javac] symbol : class JsonElement [javac] location: class com.myapp.test.GsonTest [javac] final JsonElement e = parser.parse(s); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:20: cannot find symbol [javac] symbol : class JsonElement [javac] location: class com.myapp.test.GsonTest [javac] final JsonElement e2 = parser.parse(s2); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:19: cannot find symbol [javac] symbol : method getInstrumentation() [javac] location: class com.myapp.test.HttpTest [javac] assertEquals("MyApp", getInstrumentation().getTargetContext().getResources().getString(com.myapp.R.string.app_name)); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:62: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:82: cannot find symbol [javac] symbol : method assertTrue(java.lang.String,boolean) [javac] location: class com.myapp.test.HttpTest [javac] assertTrue(result[0], result[0].contains("Search")); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:87: cannot find symbol [javac] symbol : class JsonObject [javac] location: class com.myapp.test.HttpTest [javac] final JsonObject[] result = {null}; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:90: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:117: cannot find symbol [javac] symbol : class JsonObject [javac] location: class com.myapp.test.HttpTest [javac] final JsonObject[] result = {null}; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:120: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:27: cannot find symbol [javac] symbol : method assertTrue(boolean) [javac] location: class com.myapp.test.LinksTest [javac] assertTrue(m.matches()); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:28: cannot find symbol [javac] symbol : method assertEquals(java.lang.String,java.lang.String) [javac] location: class com.myapp.test.LinksTest [javac] assertEquals( map.get(url), m.group(1) ); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:19: cannot find symbol [javac] symbol : method getInstrumentation() [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals("MyApp", getInstrumentation().getTargetContext().getString(com.myapp.R.string.app_name)); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:27: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:65: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:74: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:105: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:113: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:144: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:154: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:187: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:11: cannot access roboguice.activity.GuiceListActivity [javac] class file for roboguice.activity.GuiceListActivity not found [javac] public class StoriesTest extends ActivityUnitTestCase<Stories> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:21: cannot access roboguice.application.GuiceApplication [javac] class file for roboguice.application.GuiceApplication not found [javac] setApplication( new MyApplication( getInstrumentation().getTargetContext() ) ); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:22: incompatible types [javac] found : com.myapp.activity.Stories [javac] required: android.app.Activity [javac] final Activity activity = startActivity(intent, null, null); [javac] ^ [javac] 39 errors [javac] 6 warnings BUILD FAILED /opt/local/android-sdk-mac/platforms/android-1.6/templates/android_rules.xml:248: Compile failed; see the compiler error output for details. Total time: 24 seconds That's not a hard problem to solve. I'm not sure it's the right thing to do, but I copied the missing libraries (roboguice and gson) from the MyApp/libs directory to the MyAppTests/libs directory and everything seems to compile fine. But that leads to the second problem, which I'm currently stuck on. The tests compile fine but they won't run: $ cp ../MyApp/libs/gson-r538.jar libs/ $ cp ../MyApp/libs/roboguice-1.1-SNAPSHOT.jar libs/ 0 10:23 /Users/mike/Projects/myapp/android/MyAppTests $ ant run-testsBuildfile: build.xml [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -install-tested-project: [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 1 source file to /Users/mike/Projects/myapp/android/MyApp/bin/classes -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyApp/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyApp-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk onto default emulator or device... [exec] 1396 KB/s (288354 bytes in 0.201s) [exec] pkg: /data/local/tmp/MyApp-debug.apk [exec] Success -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 5 source files to /Users/mike/Projects/myapp/android/MyAppTests/bin/classes [javac] Note: /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java uses unchecked or unsafe operations. [javac] Note: Recompile with -Xlint:unchecked for details. -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyAppTests/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyAppTests-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyAppTests/bin/MyAppTests-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyAppTests/bin/MyAppTests-debug.apk onto default emulator or device... [exec] 1227 KB/s (94595 bytes in 0.075s) [exec] pkg: /data/local/tmp/MyAppTests-debug.apk [exec] Success run-tests: [echo] Running tests ... [exec] [exec] android.test.suitebuilder.TestSuiteBuilder$FailedToCreateTests:INSTRUMENTATION_RESULT: shortMsg=Class ref in pre-verified class resolved to unexpected implementation [exec] INSTRUMENTATION_RESULT: longMsg=java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation [exec] INSTRUMENTATION_CODE: 0 BUILD SUCCESSFUL Total time: 38 seconds Any idea what's causing the "Class ref in pre-verified class resolved to unexpected implementation" error?

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  • Can't build and run an android test project created using "ant create test-project" when tested proj

    - by Mike
    I have a module that builds an app called MyApp. I have another that builds some testcases for that app, called MyAppTests. They both build their own APKs, and they both work fine from within my IDE. I'd like to build them using ant so that I can take advantage of continuous integration. Building the app module works fine. I'm having difficulty getting the Test module to compile and run. Using Christopher's tip from a previous question, I used android create test-project -p MyAppTests -m ../MyApp -n MyAppTests to create the necessary build files to build and run my test project. This seems to work great (once I remove an unnecessary test case that it constructed for me and revert my AndroidManifest.xml to the one I was using before it got replaced by android create), but I have two problems. The first problem: The project doesn't compile because it's missing libraries. $ ant run-tests Buildfile: build.xml [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -install-tested-project: [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 1 source file to /Users/mike/Projects/myapp/android/MyApp/bin/classes -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyApp/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyApp-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk onto default emulator or device... [exec] 1567 KB/s (288354 bytes in 0.179s) [exec] pkg: /data/local/tmp/MyApp-debug.apk [exec] Success -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/gen [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/bin [mkdir] Created dir: /Users/mike/Projects/myapp/android/MyAppTests/bin/classes -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 5 source files to /Users/mike/Projects/myapp/android/MyAppTests/bin/classes [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:8: package com.google.gson does not exist [javac] import com.google.gson.JsonElement; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:9: package com.google.gson does not exist [javac] import com.google.gson.JsonParser; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:11: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class GsonTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:6: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:7: package roboguice.util does not exist [javac] import roboguice.util.RoboLooperThread; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:11: package com.google.gson does not exist [javac] import com.google.gson.JsonObject; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:15: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class HttpTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:12: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class LinksTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:4: package roboguice.test does not exist [javac] import roboguice.test.RoboUnitTestCase; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:5: package roboguice.util does not exist [javac] import roboguice.util.RoboAsyncTask; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:6: package roboguice.util does not exist [javac] import roboguice.util.RoboLooperThread; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:12: cannot find symbol [javac] symbol: class RoboUnitTestCase [javac] public class SafeAsyncTest extends RoboUnitTestCase<MyApplication> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectResource': class file for roboguice.inject.InjectResource not found [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectResource' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView': class file for roboguice.inject.InjectView not found [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyApp/bin/classes/com/myapp/activity/Stories.class: warning: Cannot find annotation method 'value()' in type 'roboguice.inject.InjectView' [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:15: cannot find symbol [javac] symbol : class JsonParser [javac] location: class com.myapp.test.GsonTest [javac] final JsonParser parser = new JsonParser(); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:15: cannot find symbol [javac] symbol : class JsonParser [javac] location: class com.myapp.test.GsonTest [javac] final JsonParser parser = new JsonParser(); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:18: cannot find symbol [javac] symbol : class JsonElement [javac] location: class com.myapp.test.GsonTest [javac] final JsonElement e = parser.parse(s); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/GsonTest.java:20: cannot find symbol [javac] symbol : class JsonElement [javac] location: class com.myapp.test.GsonTest [javac] final JsonElement e2 = parser.parse(s2); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:19: cannot find symbol [javac] symbol : method getInstrumentation() [javac] location: class com.myapp.test.HttpTest [javac] assertEquals("MyApp", getInstrumentation().getTargetContext().getResources().getString(com.myapp.R.string.app_name)); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:62: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:82: cannot find symbol [javac] symbol : method assertTrue(java.lang.String,boolean) [javac] location: class com.myapp.test.HttpTest [javac] assertTrue(result[0], result[0].contains("Search")); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:87: cannot find symbol [javac] symbol : class JsonObject [javac] location: class com.myapp.test.HttpTest [javac] final JsonObject[] result = {null}; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:90: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:117: cannot find symbol [javac] symbol : class JsonObject [javac] location: class com.myapp.test.HttpTest [javac] final JsonObject[] result = {null}; [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/HttpTest.java:120: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.HttpTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:27: cannot find symbol [javac] symbol : method assertTrue(boolean) [javac] location: class com.myapp.test.LinksTest [javac] assertTrue(m.matches()); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/LinksTest.java:28: cannot find symbol [javac] symbol : method assertEquals(java.lang.String,java.lang.String) [javac] location: class com.myapp.test.LinksTest [javac] assertEquals( map.get(url), m.group(1) ); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:19: cannot find symbol [javac] symbol : method getInstrumentation() [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals("MyApp", getInstrumentation().getTargetContext().getString(com.myapp.R.string.app_name)); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:27: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:65: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:74: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:105: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:113: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:144: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:154: cannot find symbol [javac] symbol : class RoboLooperThread [javac] location: class com.myapp.test.SafeAsyncTest [javac] new RoboLooperThread() { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java:187: cannot find symbol [javac] symbol : method assertEquals(com.myapp.test.SafeAsyncTest.State,com.myapp.test.SafeAsyncTest.State) [javac] location: class com.myapp.test.SafeAsyncTest [javac] assertEquals(State.TEST_SUCCESS,state[0]); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:11: cannot access roboguice.activity.GuiceListActivity [javac] class file for roboguice.activity.GuiceListActivity not found [javac] public class StoriesTest extends ActivityUnitTestCase<Stories> { [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:21: cannot access roboguice.application.GuiceApplication [javac] class file for roboguice.application.GuiceApplication not found [javac] setApplication( new MyApplication( getInstrumentation().getTargetContext() ) ); [javac] ^ [javac] /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/StoriesTest.java:22: incompatible types [javac] found : com.myapp.activity.Stories [javac] required: android.app.Activity [javac] final Activity activity = startActivity(intent, null, null); [javac] ^ [javac] 39 errors [javac] 6 warnings BUILD FAILED /opt/local/android-sdk-mac/platforms/android-1.6/templates/android_rules.xml:248: Compile failed; see the compiler error output for details. Total time: 24 seconds That's not a hard problem to solve. I'm not sure it's the right thing to do, but I copied the missing libraries (roboguice and gson) from the MyApp/libs directory to the MyAppTests/libs directory and everything seems to compile fine. But that leads to the second problem, which I'm currently stuck on. The tests compile fine but they won't run: $ cp ../MyApp/libs/gson-r538.jar libs/ $ cp ../MyApp/libs/roboguice-1.1-SNAPSHOT.jar libs/ 0 10:23 /Users/mike/Projects/myapp/android/MyAppTests $ ant run-testsBuildfile: build.xml [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -install-tested-project: [setup] Project Target: Google APIs [setup] Vendor: Google Inc. [setup] Platform Version: 1.6 [setup] API level: 4 [setup] WARNING: No minSdkVersion value set. Application will install on all Android versions. -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 1 source file to /Users/mike/Projects/myapp/android/MyApp/bin/classes -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyApp/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyApp-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyApp/bin/MyApp-debug.apk onto default emulator or device... [exec] 1396 KB/s (288354 bytes in 0.201s) [exec] pkg: /data/local/tmp/MyApp-debug.apk [exec] Success -compile-tested-if-test: -dirs: [echo] Creating output directories if needed... -resource-src: [echo] Generating R.java / Manifest.java from the resources... -aidl: [echo] Compiling aidl files into Java classes... compile: [javac] Compiling 5 source files to /Users/mike/Projects/myapp/android/MyAppTests/bin/classes [javac] Note: /Users/mike/Projects/myapp/android/MyAppTests/src/com/myapp/test/SafeAsyncTest.java uses unchecked or unsafe operations. [javac] Note: Recompile with -Xlint:unchecked for details. -dex: [echo] Converting compiled files and external libraries into /Users/mike/Projects/myapp/android/MyAppTests/bin/classes.dex... [echo] -package-resources: [echo] Packaging resources [aaptexec] Creating full resource package... -package-debug-sign: [apkbuilder] Creating MyAppTests-debug-unaligned.apk and signing it with a debug key... [apkbuilder] Using keystore: /Users/mike/.android/debug.keystore debug: [echo] Running zip align on final apk... [echo] Debug Package: /Users/mike/Projects/myapp/android/MyAppTests/bin/MyAppTests-debug.apk install: [echo] Installing /Users/mike/Projects/myapp/android/MyAppTests/bin/MyAppTests-debug.apk onto default emulator or device... [exec] 1227 KB/s (94595 bytes in 0.075s) [exec] pkg: /data/local/tmp/MyAppTests-debug.apk [exec] Success run-tests: [echo] Running tests ... [exec] [exec] android.test.suitebuilder.TestSuiteBuilder$FailedToCreateTests:INSTRUMENTATION_RESULT: shortMsg=Class ref in pre-verified class resolved to unexpected implementation [exec] INSTRUMENTATION_RESULT: longMsg=java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation [exec] INSTRUMENTATION_CODE: 0 BUILD SUCCESSFUL Total time: 38 seconds Any idea what's causing the "Class ref in pre-verified class resolved to unexpected implementation" error?

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  • Update Manager unable to get updates

    - by dPEN
    In last few days my Ubuntu 11.10 update manager is unable to get new updates. When I checked update log I saw that for couple of updates it says "Network isn't available". For other updates it downloaded logs and and internet connection also works fine. Unable to attached screenshot due to SPAM prevention policy. But for below Release gpgv:/var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_oneiric_Release.gpg it says "Network isn't available" For all other Releases it is downloading fine. And due to this I dont see any update available in last 10 days. LOG OF sudo apt-get update: dipen@EIDLCPU1018:~$ sudo apt-get update [sudo] password for dipen: Ign http:/extras.ubuntu.com oneiric InRelease Ign http:/archive.canonical.com oneiric InRelease Ign http:/archive.canonical.com lucid InRelease Get:1 http:/extras.ubuntu.com oneiric Release.gpg [72 B] Get:2 http:/archive.canonical.com oneiric Release.gpg [198 B] Hit http:/extras.ubuntu.com oneiric Release Get:3 http:/archive.canonical.com lucid Release.gpg [198 B] Err http:/extras.ubuntu.com oneiric Release Hit http:/archive.canonical.com oneiric Release Ign http:/archive.canonical.com oneiric Release Hit http:/archive.canonical.com lucid Release Ign http:/archive.canonical.com lucid Release Ign http:/archive.canonical.com oneiric/partner i386 Packages/DiffIndex Ign http:/archive.canonical.com oneiric/partner TranslationIndex Ign http:/archive.canonical.com lucid/partner i386 Packages/DiffIndex Ign http:/archive.canonical.com lucid/partner TranslationIndex Hit http:/archive.canonical.com oneiric/partner i386 Packages Hit http:/archive.canonical.com lucid/partner i386 Packages Ign http:/dl.google.com stable InRelease Ign http:/archive.canonical.com oneiric/partner Translation-en_IN Ign http:/archive.canonical.com oneiric/partner Translation-en Ign http:/archive.canonical.com lucid/partner Translation-en_IN Ign http:/archive.canonical.com lucid/partner Translation-en Ign http:/in.archive.ubuntu.com oneiric InRelease Ign http:/in.archive.ubuntu.com oneiric-updates InRelease Ign http:/in.archive.ubuntu.com oneiric-security InRelease Get:4 http//dl.google.com stable Release.gpg [198 B] Get:5 http//in.archive.ubuntu.com oneiric Release.gpg [198 B] Get:6 http//in.archive.ubuntu.com oneiric-updates Release.gpg [198 B] Get:7 http//in.archive.ubuntu.com oneiric-security Release.gpg [198 B] Hit http:/in.archive.ubuntu.com oneiric Release Ign http:/in.archive.ubuntu.com oneiric Release Hit http:/in.archive.ubuntu.com oneiric-updates Release Err http:/in.archive.ubuntu.com oneiric-updates Release Hit http:/in.archive.ubuntu.com oneiric-security Release Ign http:/in.archive.ubuntu.com oneiric-security Release Ign http:/in.archive.ubuntu.com oneiric/main i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/restricted i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/universe i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric/multiverse i386 Packages/DiffIndex Hit http:/in.archive.ubuntu.com oneiric/main TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/multiverse TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/restricted TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/universe TranslationIndex Ign http:/in.archive.ubuntu.com oneiric-security/main i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/restricted i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/universe i386 Packages/DiffIndex Ign http:/in.archive.ubuntu.com oneiric-security/multiverse i386 Packages/DiffIndex Hit http:/in.archive.ubuntu.com oneiric-security/main TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/multiverse TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/restricted TranslationIndex Hit http:/in.archive.ubuntu.com oneiric-security/universe TranslationIndex Hit http:/in.archive.ubuntu.com oneiric/main i386 Packages Hit http:/in.archive.ubuntu.com oneiric/restricted i386 Packages Hit http:/in.archive.ubuntu.com oneiric/universe i386 Packages Hit http:/in.archive.ubuntu.com oneiric/multiverse i386 Packages Hit http:/in.archive.ubuntu.com oneiric/main Translation-en Hit http:/in.archive.ubuntu.com oneiric/multiverse Translation-en Hit http:/in.archive.ubuntu.com oneiric/restricted Translation-en Hit http:/in.archive.ubuntu.com oneiric/universe Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/main i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/restricted i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/universe i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/multiverse i386 Packages Hit http:/in.archive.ubuntu.com oneiric-security/main Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/multiverse Translation-en Get:8 http//dl.google.com stable Release [1,347 B] Hit http:/in.archive.ubuntu.com oneiric-security/restricted Translation-en Hit http:/in.archive.ubuntu.com oneiric-security/universe Translation-en Get:9 http//dl.google.com stable/main i386 Packages [1,214 B] Ign http:/dl.google.com stable/main TranslationIndex Ign http:/dl.google.com stable/main Translation-en_IN Ign http:/dl.google.com stable/main Translation-en Fetched 3,821 B in 41s (91 B/s) Reading package lists... Done W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http:/extras.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key <[email protected]> W: GPG error: http:/archive.canonical.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/archive.canonical.com lucid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/in.archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http:/in.archive.ubuntu.com oneiric-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http:/in.archive.ubuntu.com oneiric-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: Failed to fetch http:/extras.ubuntu.com/ubuntu/dists/oneiric/Release W: Failed to fetch http:/in.archive.ubuntu.com/ubuntu/dists/oneiric-updates/Release W: Some index files failed to download. They have been ignored, or old ones used instead. dipen@EIDLCPU1018:~$ LOG of sudo apt-get upgrade: dipen@EIDLCPU1018:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: ghc6-doc haskell-zlib-doc libghc6-zlib-doc 0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded. dipen@EIDLCPU1018:~$ /etc/apt/sources.list: deb http:/in.archive.ubuntu.com/ubuntu/ oneiric main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric multiverse deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse deb http:/archive.canonical.com/ubuntu oneiric partner deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security main restricted deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security universe deb http:/in.archive.ubuntu.com/ubuntu/ oneiric-security multiverse deb http:/extras.ubuntu.com/ubuntu oneiric main #Third party developers repository deb http:/archive.canonical.com/ lucid partner

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  • How can I remove the Translation entries in apt?

    - by Lord of Time
    This is the output of aptitude update: Ign http://archive.canonical.com natty InRelease Ign http://extras.ubuntu.com natty InRelease Ign http://dl.google.com stable InRelease Ign http://security.ubuntu.com natty-security InRelease Hit http://deb.torproject.org natty InRelease Get:1 http://dl.google.com stable Release.gpg [198 B] Ign http://us.archive.ubuntu.com natty InRelease Ign http://us.archive.ubuntu.com natty-updates InRelease Hit http://archive.canonical.com natty Release.gpg Hit http://extras.ubuntu.com natty Release.gpg Hit http://security.ubuntu.com natty-security Release.gpg Hit http://us.archive.ubuntu.com natty Release.gpg Hit http://security.ubuntu.com natty-security Release Hit http://archive.canonical.com natty Release Hit http://extras.ubuntu.com natty Release Get:2 http://dl.google.com stable Release [1,338 B] Hit http://us.archive.ubuntu.com natty-updates Release.gpg Hit http://security.ubuntu.com natty-security/main Sources Hit http://archive.canonical.com natty/partner amd64 Packages Hit http://deb.torproject.org natty/main amd64 Packages Hit http://extras.ubuntu.com natty/main Sources Hit http://us.archive.ubuntu.com natty Release Hit http://security.ubuntu.com natty-security/restricted Sources Hit http://security.ubuntu.com natty-security/universe Sources Hit http://security.ubuntu.com natty-security/multiverse Sources Hit http://security.ubuntu.com natty-security/main amd64 Packages Hit http://security.ubuntu.com natty-security/restricted amd64 Packages Ign http://archive.canonical.com natty/partner TranslationIndex Hit http://extras.ubuntu.com natty/main amd64 Packages Ign http://extras.ubuntu.com natty/main TranslationIndex Hit http://security.ubuntu.com natty-security/universe amd64 Packages Hit http://security.ubuntu.com natty-security/multiverse amd64 Packages Ign http://security.ubuntu.com natty-security/main TranslationIndex Ign http://security.ubuntu.com natty-security/multiverse TranslationIndex Ign http://security.ubuntu.com natty-security/restricted TranslationIndex Ign http://deb.torproject.org natty/main TranslationIndex Ign http://security.ubuntu.com natty-security/universe TranslationIndex Hit http://us.archive.ubuntu.com natty-updates Release Hit http://us.archive.ubuntu.com natty/main Sources Hit http://us.archive.ubuntu.com natty/restricted Sources Hit http://us.archive.ubuntu.com natty/universe Sources Hit http://us.archive.ubuntu.com natty/multiverse Sources Hit http://us.archive.ubuntu.com natty/main amd64 Packages Hit http://us.archive.ubuntu.com natty/restricted amd64 Packages Hit http://us.archive.ubuntu.com natty/universe amd64 Packages Hit http://us.archive.ubuntu.com natty/multiverse amd64 Packages Ign http://us.archive.ubuntu.com natty/main TranslationIndex Ign http://us.archive.ubuntu.com natty/multiverse TranslationIndex Ign http://us.archive.ubuntu.com natty/restricted TranslationIndex Ign http://us.archive.ubuntu.com natty/universe TranslationIndex Hit http://us.archive.ubuntu.com natty-updates/main Sources Hit http://us.archive.ubuntu.com natty-updates/restricted Sources Hit http://us.archive.ubuntu.com natty-updates/universe Sources Get:3 http://dl.google.com stable/main amd64 Packages [469 B] Ign http://dl.google.com stable/main TranslationIndex Hit http://us.archive.ubuntu.com natty-updates/multiverse Sources Hit http://us.archive.ubuntu.com natty-updates/main amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/restricted amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/universe amd64 Packages Hit http://us.archive.ubuntu.com natty-updates/multiverse amd64 Packages Ign http://us.archive.ubuntu.com natty-updates/main TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/multiverse TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/restricted TranslationIndex Ign http://us.archive.ubuntu.com natty-updates/universe TranslationIndex Ign http://archive.canonical.com natty/partner Translation-en_US Ign http://extras.ubuntu.com natty/main Translation-en_US Ign http://extras.ubuntu.com natty/main Translation-en Ign http://archive.canonical.com natty/partner Translation-en Ign http://security.ubuntu.com natty-security/main Translation-en_US Ign http://security.ubuntu.com natty-security/main Translation-en Ign http://security.ubuntu.com natty-security/multiverse Translation-en_US Ign http://security.ubuntu.com natty-security/multiverse Translation-en Ign http://security.ubuntu.com natty-security/restricted Translation-en_US Ign http://security.ubuntu.com natty-security/restricted Translation-en Ign http://security.ubuntu.com natty-security/universe Translation-en_US Ign http://security.ubuntu.com natty-security/universe Translation-en Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Ign http://ppa.launchpad.net natty InRelease Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release.gpg Hit http://ppa.launchpad.net natty Release Ign http://dl.google.com stable/main Translation-en_US Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Hit http://ppa.launchpad.net natty Release Ign http://dl.google.com stable/main Translation-en Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Hit http://ppa.launchpad.net natty/main Sources Ign http://us.archive.ubuntu.com natty/main Translation-en_US Ign http://us.archive.ubuntu.com natty/main Translation-en Hit http://ppa.launchpad.net natty/main amd64 Packages Ign http://ppa.launchpad.net natty/main TranslationIndex Ign http://us.archive.ubuntu.com natty/multiverse Translation-en_US Ign http://us.archive.ubuntu.com natty/multiverse Translation-en Ign http://us.archive.ubuntu.com natty/restricted Translation-en_US Ign http://us.archive.ubuntu.com natty/restricted Translation-en Ign http://us.archive.ubuntu.com natty/universe Translation-en_US Ign http://us.archive.ubuntu.com natty/universe Translation-en Ign http://us.archive.ubuntu.com natty-updates/main Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/main Translation-en Ign http://us.archive.ubuntu.com natty-updates/multiverse Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/multiverse Translation-en Ign http://us.archive.ubuntu.com natty-updates/restricted Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/restricted Translation-en Ign http://us.archive.ubuntu.com natty-updates/universe Translation-en_US Ign http://us.archive.ubuntu.com natty-updates/universe Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://archive.getdeb.net natty-getdeb InRelease Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Ign http://ppa.launchpad.net natty/main Translation-en_US Ign http://ppa.launchpad.net natty/main Translation-en Hit http://archive.getdeb.net natty-getdeb Release.gpg Hit http://archive.getdeb.net natty-getdeb Release Ign http://deb.torproject.org natty/main Translation-en_US Ign http://deb.torproject.org natty/main Translation-en Hit http://archive.getdeb.net natty-getdeb/apps amd64 Packages Ign http://archive.getdeb.net natty-getdeb/apps TranslationIndex Ign http://archive.getdeb.net natty-getdeb/apps Translation-en_US Ign http://archive.getdeb.net natty-getdeb/apps Translation-en Fetched 2,005 B in 45s (44 B/s) Reading package lists... Is there any way I can get rid of the Translation stuff? I'm tired of it resulting in tons of repository checks rather than it checking far less repositories (69 actual repos vs. 169 checks)

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  • C# 4.0: Named And Optional Arguments

    - by Paulo Morgado
    As part of the co-evolution effort of C# and Visual Basic, C# 4.0 introduces Named and Optional Arguments. First of all, let’s clarify what are arguments and parameters: Method definition parameters are the input variables of the method. Method call arguments are the values provided to the method parameters. In fact, the C# Language Specification states the following on §7.5: The argument list (§7.5.1) of a function member invocation provides actual values or variable references for the parameters of the function member. Given the above definitions, we can state that: Parameters have always been named and still are. Parameters have never been optional and still aren’t. Named Arguments Until now, the way the C# compiler matched method call definition arguments with method parameters was by position. The first argument provides the value for the first parameter, the second argument provides the value for the second parameter, and so on and so on, regardless of the name of the parameters. If a parameter was missing a corresponding argument to provide its value, the compiler would emit a compilation error. For this call: Greeting("Mr.", "Morgado", 42); this method: public void Greeting(string title, string name, int age) will receive as parameters: title: “Mr.” name: “Morgado” age: 42 What this new feature allows is to use the names of the parameters to identify the corresponding arguments in the form: name:value Not all arguments in the argument list must be named. However, all named arguments must be at the end of the argument list. The matching between arguments (and the evaluation of its value) and parameters will be done first by name for the named arguments and than by position for the unnamed arguments. This means that, for this method definition: public static void Method(int first, int second, int third) this call declaration: int i = 0; Method(i, third: i++, second: ++i); will have this code generated by the compiler: int i = 0; int CS$0$0000 = i++; int CS$0$0001 = ++i; Method(i, CS$0$0001, CS$0$0000); which will give the method the following parameter values: first: 2 second: 2 third: 0 Notice the variable names. Although invalid being invalid C# identifiers, they are valid .NET identifiers and thus avoiding collision between user written and compiler generated code. Besides allowing to re-order of the argument list, this feature is very useful for auto-documenting the code, for example, when the argument list is very long or not clear, from the call site, what the arguments are. Optional Arguments Parameters can now have default values: public static void Method(int first, int second = 2, int third = 3) Parameters with default values must be the last in the parameter list and its value is used as the value of the parameter if the corresponding argument is missing from the method call declaration. For this call declaration: int i = 0; Method(i, third: ++i); will have this code generated by the compiler: int i = 0; int CS$0$0000 = ++i; Method(i, 2, CS$0$0000); which will give the method the following parameter values: first: 1 second: 2 third: 1 Because, when method parameters have default values, arguments can be omitted from the call declaration, this might seem like method overloading or a good replacement for it, but it isn’t. Although methods like this: public static StreamReader OpenTextFile( string path, Encoding encoding = null, bool detectEncoding = true, int bufferSize = 1024) allow to have its calls written like this: OpenTextFile("foo.txt", Encoding.UTF8); OpenTextFile("foo.txt", Encoding.UTF8, bufferSize: 4096); OpenTextFile( bufferSize: 4096, path: "foo.txt", detectEncoding: false); The complier handles default values like constant fields taking the value and useing it instead of a reference to the value. So, like with constant fields, methods with parameters with default values are exposed publicly (and remember that internal members might be publicly accessible – InternalsVisibleToAttribute). If such methods are publicly accessible and used by another assembly, those values will be hard coded in the calling code and, if the called assembly has its default values changed, they won’t be assumed by already compiled code. At the first glance, I though that using optional arguments for “bad” written code was great, but the ability to write code like that was just pure evil. But than I realized that, since I use private constant fields, it’s OK to use default parameter values on privately accessed methods.

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  • Big Data – Role of Cloud Computing in Big Data – Day 11 of 21

    - by Pinal Dave
    In yesterday’s blog post we learned the importance of the NewSQL. In this article we will understand the role of Cloud in Big Data Story What is Cloud? Cloud is the biggest buzzword around from last few years. Everyone knows about the Cloud and it is extremely well defined online. In this article we will discuss cloud in the context of the Big Data. Cloud computing is a method of providing a shared computing resources to the application which requires dynamic resources. These resources include applications, computing, storage, networking, development and various deployment platforms. The fundamentals of the cloud computing are that it shares pretty much share all the resources and deliver to end users as a service.  Examples of the Cloud Computing and Big Data are Google and Amazon.com. Both have fantastic Big Data offering with the help of the cloud. We will discuss this later in this blog post. There are two different Cloud Deployment Models: 1) The Public Cloud and 2) The Private Cloud Public Cloud Public Cloud is the cloud infrastructure build by commercial providers (Amazon, Rackspace etc.) creates a highly scalable data center that hides the complex infrastructure from the consumer and provides various services. Private Cloud Private Cloud is the cloud infrastructure build by a single organization where they are managing highly scalable data center internally. Here is the quick comparison between Public Cloud and Private Cloud from Wikipedia:   Public Cloud Private Cloud Initial cost Typically zero Typically high Running cost Unpredictable Unpredictable Customization Impossible Possible Privacy No (Host has access to the data Yes Single sign-on Impossible Possible Scaling up Easy while within defined limits Laborious but no limits Hybrid Cloud Hybrid Cloud is the cloud infrastructure build with the composition of two or more clouds like public and private cloud. Hybrid cloud gives best of the both the world as it combines multiple cloud deployment models together. Cloud and Big Data – Common Characteristics There are many characteristics of the Cloud Architecture and Cloud Computing which are also essentially important for Big Data as well. They highly overlap and at many places it just makes sense to use the power of both the architecture and build a highly scalable framework. Here is the list of all the characteristics of cloud computing important in Big Data Scalability Elasticity Ad-hoc Resource Pooling Low Cost to Setup Infastructure Pay on Use or Pay as you Go Highly Available Leading Big Data Cloud Providers There are many players in Big Data Cloud but we will list a few of the known players in this list. Amazon Amazon is arguably the most popular Infrastructure as a Service (IaaS) provider. The history of how Amazon started in this business is very interesting. They started out with a massive infrastructure to support their own business. Gradually they figured out that their own resources are underutilized most of the time. They decided to get the maximum out of the resources they have and hence  they launched their Amazon Elastic Compute Cloud (Amazon EC2) service in 2006. Their products have evolved a lot recently and now it is one of their primary business besides their retail selling. Amazon also offers Big Data services understand Amazon Web Services. Here is the list of the included services: Amazon Elastic MapReduce – It processes very high volumes of data Amazon DynammoDB – It is fully managed NoSQL (Not Only SQL) database service Amazon Simple Storage Services (S3) – A web-scale service designed to store and accommodate any amount of data Amazon High Performance Computing – It provides low-tenancy tuned high performance computing cluster Amazon RedShift – It is petabyte scale data warehousing service Google Though Google is known for Search Engine, we all know that it is much more than that. Google Compute Engine – It offers secure, flexible computing from energy efficient data centers Google Big Query – It allows SQL-like queries to run against large datasets Google Prediction API – It is a cloud based machine learning tool Other Players Besides Amazon and Google we also have other players in the Big Data market as well. Microsoft is also attempting Big Data with the Cloud with Microsoft Azure. Additionally Rackspace and NASA together have initiated OpenStack. The goal of Openstack is to provide a massively scaled, multitenant cloud that can run on any hardware. Thing to Watch The cloud based solutions provides a great integration with the Big Data’s story as well it is very economical to implement as well. However, there are few things one should be very careful when deploying Big Data on cloud solutions. Here is a list of a few things to watch: Data Integrity Initial Cost Recurring Cost Performance Data Access Security Location Compliance Every company have different approaches to Big Data and have different rules and regulations. Based on various factors, one can implement their own custom Big Data solution on a cloud. Tomorrow In tomorrow’s blog post we will discuss about various Operational Databases supporting Big Data. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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  • Helping install mrcwa and solve problems with f2py in Ubuntu 14.04 LTS

    - by user288160
    I am sorry if this is the wrong section but I am starting to get desperate, please someone help me... I need to install the program mrcwa-20080820 (sourceforge.net/projects/mrcwa/) because a summer project that I am involved. I need to use it together with anaconda (store.continuum.io/cshop/anaconda/), I already installed Anaconda and apparently it is working. When I type: conda --version I got the expected answer. conda 3.5.2 If I tried to import numpy or scipy with python or simple type f2py there are no errors. So far so good. But when I tried to install this program sudo python setup.py install I got these errors: running install running build sh: 1: f2py: not found cp: cannot stat ‘mrcwaf.so’: No such file or directory running build_py running install_lib running install_egg_info Removing /usr/local/lib/python2.7/dist-packages/mrcwa-20080820.egg-info Writing /usr/local/lib/python2.7/dist-packages/mrcwa-20080820.egg-info Obs: I am trying to use intel fortran 64-bits and Ubuntu 14.04 LTS. So I was checking f2py and tried to execute the program hello world f2py -c -m hello hello.f from here: cens.ioc.ee/projects/f2py2e/index.html#usage and I had some problems too: running build running config_cc unifing config_cc, config, build_clib, build_ext, build commands --compiler options running config_fc unifing config_fc, config, build_clib, build_ext, build commands --fcompiler options running build_src build_src building extension "hello" sources f2py options: [] f2py:> /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/hellomodule.c creating /tmp/tmpf8P4Y3/src.linux-x86_64-2.7 Reading fortran codes... Reading file 'hello.f' (format:fix,strict) Post-processing... Block: hello Block: foo Post-processing (stage 2)... Building modules... Building module "hello"... Constructing wrapper function "foo"... foo(a) Wrote C/API module "hello" to file "/tmp/tmpf8P4Y3/src.linux-x86_64-2.7 /hellomodule.c" adding '/tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.c' to sources. adding '/tmp/tmpf8P4Y3/src.linux-x86_64-2.7' to include_dirs. copying /home/felipe/.local/lib/python2.7/site-packages/numpy/f2py/src/fortranobject.c -> /tmp/tmpf8P4Y3/src.linux-x86_64-2.7 copying /home/felipe/.local/lib/python2.7/site-packages/numpy/f2py/src/fortranobject.h -> /tmp/tmpf8P4Y3/src.linux-x86_64-2.7 build_src: building npy-pkg config files running build_ext customize UnixCCompiler customize UnixCCompiler using build_ext customize Gnu95FCompiler Could not locate executable gfortran Could not locate executable f95 customize IntelFCompiler Found executable /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/ifort customize LaheyFCompiler Could not locate executable lf95 customize PGroupFCompiler Could not locate executable pgfortran customize AbsoftFCompiler Could not locate executable f90 Could not locate executable f77 customize NAGFCompiler customize VastFCompiler customize CompaqFCompiler Could not locate executable fort customize IntelItaniumFCompiler customize IntelEM64TFCompiler customize IntelEM64TFCompiler customize IntelEM64TFCompiler using build_ext building 'hello' extension compiling C sources C compiler: gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC creating /tmp/tmpf8P4Y3/tmp creating /tmp/tmpf8P4Y3/tmp/tmpf8P4Y3 creating /tmp/tmpf8P4Y3/tmp/tmpf8P4Y3/src.linux-x86_64-2.7 compile options: '-I/tmp/tmpf8P4Y3/src.linux-x86_64-2.7 -I/home/felipe/.local/lib/python2.7/site-packages/numpy/core/include -I/home/felipe/anaconda/include/python2.7 -c' gcc: /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/hellomodule.c In file included from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/ndarraytypes.h:1761:0, from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/ndarrayobject.h:17, from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/arrayobject.h:4, from /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.h:13, from /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/hellomodule.c:17: /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] #warning "Using deprecated NumPy API, disable it by " \ ^ gcc: /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.c In file included from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/ndarraytypes.h:1761:0, from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/ndarrayobject.h:17, from /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/arrayobject.h:4, from /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.h:13, from /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.c:2: /home/felipe/.local/lib/python2.7/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] #warning "Using deprecated NumPy API, disable it by " \ ^ compiling Fortran sources Fortran f77 compiler: /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/ifort -FI -fPIC -xhost -openmp -fp-model strict Fortran f90 compiler: /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/ifort -FR -fPIC -xhost -openmp -fp-model strict Fortran fix compiler: /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/ifort -FI -fPIC -xhost -openmp -fp-model strict compile options: '-I/tmp/tmpf8P4Y3/src.linux-x86_64-2.7 -I/home/felipe/.local /lib/python2.7/site-packages/numpy/core/include -I/home/felipe/anaconda/include/python2.7 -c' ifort:f77: hello.f /opt/intel/composer_xe_2013_sp1.3.174/bin/intel64/ifort -shared -shared -nofor_main /tmp/tmpf8P4Y3/tmp/tmpf8P4Y3/src.linux-x86_64-2.7/hellomodule.o /tmp/tmpf8P4Y3 /tmp/tmpf8P4Y3/src.linux-x86_64-2.7/fortranobject.o /tmp/tmpf8P4Y3/hello.o -L/home/felipe /anaconda/lib -lpython2.7 -o ./hello.so Removing build directory /tmp/tmpf8P4Y3 Please help me I am new in ubuntu and python. I really need this program, my advisor is waiting an answer. Thank you very much, Felipe Oliveira.

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  • Why is HTML/Javascript minification beneficial

    - by Channel72
    Why is HTML/Javascript minification beneficial when the HTTP protocol already supports gzip data compression? I realize that Javascript/HTML minification has the potential to significantly reduce the size of Javascript/HTML files by removing unnecessary whitespace, and perhaps renaming variables to a few letters each, but doesn't the LZW algorithm do especially well when there are many repeated characters (e.g. lots of whitespace?) I realize that some Javascript minification tools do more than just reduce size. Google's closure compiler, for example, also tries to improve code performance by inlining functions and doing other analyses. But the primary purpose of Javascript minification is usually to reduce file size. I also realize there are other reasons you might want to minify aside from performace, such as code obfuscation. But again, that reason is not usually emphasized as much as performance gain and file size reduction. For example, Closure Compiler is not advertised as an obfuscation tool, but as a code size reducer and download-speed enhancer. So, how much performance do you really gain from Javascript/HTML minification when you're already significantly reducing file size with gzip compression?

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  • Grep... What patterns to extract href attributes, etc. with PHP's preg_grep?

    - by inktri
    Hi, I'm having trouble with grep.. Which four patterns should I use with PHP's preg_grep to extract all instances the "____" stuff in the strings below? 1. <h2><a ....>_____</a></h2> 2. <cite><a href="_____" .... >...</a></cite> 3. <cite><a .... >________</a></cite> 4. <span>_________</span> The dots denote some arbitrary characters while the underscores denote what I want. An example string is: </style></head> <body><div id="adBlock"><h2><a href="https://www.google.com/adsense/support/bin/request.py?contact=afs_violation&amp;hl=en" target="_blank">Ads by Google</a></h2> <div class="ad"><div><a href="http://www.google.com/aclk?sa=L&amp;ai=C4vfT4Sa3S97SLYO8NN6F-ckB5oq5sAGg6PKlDaT-kwUQASCF4p8UKARQtobS9AVgyZbRhsijoBnIAQGqBBxP0OSEnIsuRIv3ZERDm8GiSKZSnjrVf1kVq-_Y&amp;num=1&amp;sig=AGiWqtwG1qHnwpZ_5BNrjrzzXO5Or6EDMg&amp;q=http://www.crackle.com/c/Spider-Man_The_New_Animated_Series/%3Futm_source%3Dgoogle%26utm_medium%3Dcpc%26utm_campaign%3DGST_10016_CRKL_US_PRD_S_TeleV_SPID_Tele_Spider-Man%26utm_term%3Dspiderman%26utm_content%3Ds264Yjg9f_3472685742_487lrz1638" class="titleLink" target="_parent">Spider-<b>Man</b> Animated Serie</a></div> <span>See Your Favorite Spiderman <br> Episodes for Free. Only on Crackle.</span> <cite><a href="http://www.google.com/aclk?sa=L&amp;ai=C4vfT4Sa3S97SLYO8NN6F-ckB5oq5sAGg6PKlDaT-kwUQASCF4p8UKARQtobS9AVgyZbRhsijoBnIAQGqBBxP0OSEnIsuRIv3ZERDm8GiSKZSnjrVf1kVq-_Y&amp;num=1&amp;sig=AGiWqtwG1qHnwpZ_5BNrjrzzXO5Or6EDMg&amp;q=http://www.crackle.com/c/Spider-Man_The_New_Animated_Series/%3Futm_source%3Dgoogle%26utm_medium%3Dcpc%26utm_campaign%3DGST_10016_CRKL_US_PRD_S_TeleV_SPID_Tele_Spider-Man%26utm_term%3Dspiderman%26utm_content%3Ds264Yjg9f_3472685742_487lrz1638" class="domainLink" target="_parent">www.Crackle.com/Spiderman</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=CnQFi4Sa3S97SLYO8NN6F-ckB3M7nQtyU2PQEq6bCBRACIIXinxQoBFCm15KB-f____8BYMmW0YbIo6AZoAHiq_X-A8gBAaoEIU_Q9JKLiy1MiwdnHpZoBnmpR1J8pP2jpTwMx2uj2nN4WA&amp;num=2&amp;sig=AGiWqtwDrI5pWBCncdDc80FKt32AJMAQ6A&amp;q=http://www.costumeexpress.com/browse/TV-Movies/_/N-1z141uu/Ntt-batman/results1.aspx%3FREF%3DKNC-CEgoogle" class="titleLink" target="_parent">Kids <b>Batman</b> Costumes</a></div> <span>Great Selection of <b>Batman</b> &amp; Batgirl <br> Costumes For Kids. Ships Same Day!</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=CnQFi4Sa3S97SLYO8NN6F-ckB3M7nQtyU2PQEq6bCBRACIIXinxQoBFCm15KB-f____8BYMmW0YbIo6AZoAHiq_X-A8gBAaoEIU_Q9JKLiy1MiwdnHpZoBnmpR1J8pP2jpTwMx2uj2nN4WA&amp;num=2&amp;sig=AGiWqtwDrI5pWBCncdDc80FKt32AJMAQ6A&amp;q=http://www.costumeexpress.com/browse/TV-Movies/_/N-1z141uu/Ntt-batman/results1.aspx%3FREF%3DKNC-CEgoogle" class="domainLink" target="_parent">www.CostumeExpress.com</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=CAMYT4Sa3S97SLYO8NN6F-ckB3ZnWmgGdoNLrDaumwgUQAyCF4p8UKARQrqSVxwdgyZbRhsijoBmgAZH77uwDyAEBqgQYT9DU7oqLLEyLB2dHlxZFnQzyeg-yHt88&amp;num=3&amp;sig=AGiWqtzqAphZ9DLDiEFBJlb0Ou_1HyEyyA&amp;q=http://www.OfficialBatmanCostumes.com" class="titleLink" target="_parent"><b>Batman</b> Costume</a></div> <span>Official <b>Batman</b> Costumes. <br> Huge Selection &amp; Same Day Shipping!</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=CAMYT4Sa3S97SLYO8NN6F-ckB3ZnWmgGdoNLrDaumwgUQAyCF4p8UKARQrqSVxwdgyZbRhsijoBmgAZH77uwDyAEBqgQYT9DU7oqLLEyLB2dHlxZFnQzyeg-yHt88&amp;num=3&amp;sig=AGiWqtzqAphZ9DLDiEFBJlb0Ou_1HyEyyA&amp;q=http://www.OfficialBatmanCostumes.com" class="domainLink" target="_parent">www.OfficialBatmanCostumes.com</a></cite></div> <div class="ad"><div><a href="http://www.google.com/aclk?sa=l&amp;ai=C767t4Sa3S97SLYO8NN6F-ckBkZfSfoOppaMHq6bCBRAEIIXinxQoBFDX2bw6YMmW0YbIo6AZoAHpprP8A8gBAaoEG0_QhJSMiytMiwdnHpZoF3g0Uj8_Vl2r4TpI_g&amp;num=4&amp;sig=AGiWqtyGO2DnFq_jMhP6ufj8pufT9sWQWA&amp;q=http://www.discountsuperherocostumes.com/batman-costumes.html" class="titleLink" target="_parent">Discount <b>Batman</b> Costumes</a></div> <span>Discount adult and kids <b>batman</b> <br> superhero costumes.</span> <cite><a href="http://www.google.com/aclk?sa=l&amp;ai=C767t4Sa3S97SLYO8NN6F-ckBkZfSfoOppaMHq6bCBRAEIIXinxQoBFDX2bw6YMmW0YbIo6AZoAHpprP8A8gBAaoEG0_QhJSMiytMiwdnHpZoF3g0Uj8_Vl2r4TpI_g&amp;num=4&amp;sig=AGiWqtyGO2DnFq_jMhP6ufj8pufT9sWQWA&amp;q=http://www.discountsuperherocostumes.com/batman-costumes.html" class="domainLink" target="_parent">www.discountsuperherocostumes.com</a></cite></div></div></body> <script type="text/javascript"> var relay = ""; </script> <script type="text/javascript" src="/uds/?file=ads&amp;v=1&amp;packages=searchiframe&amp;nodependencyload=true"></script></html> Thanks!

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  • JavaScript Class Patterns Revisited: Endgame

    - by Liam McLennan
    I recently described some of the patterns used to simulate classes (types) in JavaScript. But I missed the best pattern of them all. I described a pattern I called constructor function with a prototype that looks like this: function Person(name, age) { this.name = name; this.age = age; } Person.prototype = { toString: function() { return this.name + " is " + this.age + " years old."; } }; var john = new Person("John Galt", 50); console.log(john.toString()); and I mentioned that the problem with this pattern is that it does not provide any encapsulation, that is, it does not allow private variables. Jan Van Ryswyck recently posted the solution, obvious in hindsight, of wrapping the constructor function in another function, thereby allowing private variables through closure. The above example becomes: var Person = (function() { // private variables go here var name,age; function constructor(n, a) { name = n; age = a; } constructor.prototype = { toString: function() { return name + " is " + age + " years old."; } }; return constructor; })(); var john = new Person("John Galt", 50); console.log(john.toString()); Now we have prototypal inheritance and encapsulation. The important thing to understand is that the constructor, and the toString function both have access to the name and age private variables because they are in an outer scope and they become part of the closure.

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  • mercurial: less duplication in hgrc file

    - by zaharpopov
    Hi there. I have using Hg for some projects on my google code hosting. For each projects I set in [auth] section of .hgrc the username/password to push without every asking for password. But it is lots of duplication like: [auth] proj1.prefix = ... 111 proj1.username = google code username proj1.password = google code password proj2.prefix = ... 222 proj2.username = google code username proj2.password = google code password Can this somehow be doing with less duplications? Maybe set variable in hgrc and refer to it from all username/password lines? Thanks in advance for your help

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  • Android MapView with High Res tiles?

    - by Nemi
    I have created a simple map app that shows the local garage sales in my town. It was simple enough to create and I parse out the Google Maps (html) xml doc that the local paper uses on their google maps mashup on their website. I have noticed that the Map Tiles used in the MapView class are not as high-res as the tiles used in the real Android Google Maps app (I have a Droid). I have searched the docs and google, but I cannot find any info on this. Actually, I can't even find anyone mentioning this, which surprises me and makes me think I am missing something simple. Is this a case of Google making the APIs available, but at a lower quality, or am I missing some setting that enables higher quality map tiles?

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  • Languages with a clear distinction between subroutines that are purely functional, mutating, state-changing, etc?

    - by CPX
    Lately I've become more and more frustrated that in most modern programming languages I've worked with (C/C++, C#, F#, Ruby, Python, JS and more) there is very little, if any, language support for determining what a subroutine will actually do. Consider the following simple pseudo-code: var x = DoSomethingWith(y); How do I determine what the call to DoSomethingWith(y) will actually do? Will it mutate y, or will it return a copy of y? Does it depend on global or local state, or is it only dependent on y? Will it change the global or local state? How does closure affect the outcome of the call? In all languages I've encountered, almost none of these questions can be answered by merely looking at the signature of the subroutine, and there is almost never any compile-time or run-time support either. Usually, the only way is to put your trust in the author of the API, and hope that the documentation and/or naming conventions reveal what the subroutine will actually do. My question is this: Does there exist any languages today that make symbolic distinctions between these types of scenarios, and places compile-time constraints on what code you can actually write? (There is of course some support for this in most modern languages, such as different levels of scope and closure, the separation between static and instance code, lambda functions, et cetera. But too often these seem to come into conflict with each other. For instance, a lambda function will usually either be purely functional, and simply return a value based on input parameters, or mutate the input parameters in some way. But it is usually possible to access static variables from a lambda function, which in turn can give you access to instance variables, and then it all breaks apart.)

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  • Android MapView High Res tiles?

    - by Nemi
    I have created a simple map app that shows the local garage sales in my town. It was simple enough to create and I parse out the Google Maps (html) xml doc that the local paper uses on their google maps mashup on their website. I have noticed that the Map Tiles used in the MapView class are not as high-res as the tiles used in the real Android Google Maps app (I have a Droid). I have searched the docs and google, but I cannot find any info on this. Actually, I can't even find anyone mentioning this, which surprises me and makes me think I am missing something simple. Is this a case of Google making the APIs available, but at a lower quality, or am I missing some setting that enables higher quality map tiles?

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  • Ajax: Load XML from different domain?

    - by John Isaacks
    I have signed up(paid) for Google site search. They have me a url of a sort of web service where I can send a query to it, it searches my site, and it returns XML of the search results. Well I am trying to load this XML via Ajax from a page on my site but I cannot. I can load from any of my pages on my domain so I am assuming it is because of the XML being on Google's domain. So there has got to be a way to load it though, I don't think they would have given me the URL if I couldn't do anything with it lol. Does anyone know how to do this? Thanks! UPDATE: this is what the page says on google that gave me the XML: How to get XML You can get XML results for your search engine by replacing query+terms with your search query in this URL: http://www.google.com/cse?cx=MY_UNIQUE_KEY&client=google-csbe&output=xml_no_dtd&q=query+terms Where MY_UNIQUE_KEY = my unique key.

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  • Oauth : Get user's permissions without any redirection to a server.

    - by Anthony
    Hello, in my website, I want to add a "invite friend of my contacts book" functionnality. I would like that the user fills the loggin form in my website. Then the website contacts Google Mail, Yahoo Mail, Live Mail and retrieves the contact list. In the Oauth protocole supported by Google and Yahoo, the user is redirected to a Google or Yahoo page (like Facebook) in order to permit the user to give permissions. But I saw two websites which didn't any redirections to get the contacts book (LinkedIn for a Google mail account and Theauteurs with a live mail.) Do you know how I can get a contacts book without redirect the user to Google, Microsoft or Yahoo website.

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  • Solaris 11.1 changes building of code past the point of __NORETURN

    - by alanc
    While Solaris 11.1 was under development, we started seeing some errors in the builds of the upstream X.Org git master sources, such as: "Display.c", line 65: Function has no return statement : x_io_error_handler "hostx.c", line 341: Function has no return statement : x_io_error_handler from functions that were defined to match a specific callback definition that declared them as returning an int if they did return, but these were calling exit() instead of returning so hadn't listed a return value. These had been generating warnings for years which we'd been ignoring, but X.Org has made enough progress in cleaning up code for compiler warnings and static analysis issues lately, that the community turned up the default error levels, including the gcc flag -Werror=return-type and the equivalent Solaris Studio cc flags -v -errwarn=E_FUNC_HAS_NO_RETURN_STMT, so now these became errors that stopped the build. Yet on Solaris, gcc built this code fine, while Studio errored out. Investigation showed this was due to the Solaris headers, which during Solaris 10 development added a number of annotations to the headers when gcc was being used for the amd64 kernel bringup before the Studio amd64 port was ready. Since Studio did not support the inline form of these annotations at the time, but instead used #pragma for them, the definitions were only present for gcc. To resolve this, I fixed both sides of the problem, so that it would work for building new X.Org sources on older Solaris releases or with older Studio compilers, as well as fixing the general problem before it broke more software building on Solaris. To the X.Org sources, I added the traditional Studio #pragma does_not_return to recognize that functions like exit() don't ever return, in patches such as this Xserver patch. Adding a dummy return statement was ruled out as that introduced unreachable code errors from compilers and analyzers that correctly realized you couldn't reach that code after a return statement. And on the Solaris 11.1 side, I updated the annotation definitions in <sys/ccompile.h> to enable for Studio 12.0 and later compilers the annotations already existing in a number of system headers for functions like exit() and abort(). If you look in that file you'll see the annotations we currently use, though the forms there haven't gone through review to become a Committed interface, so may change in the future. Actually getting this integrated into Solaris though took a bit more work than just editing one header file. Our ELF binary build comparison tool, wsdiff, actually showed a large number of differences in the resulting binaries due to the compiler using this information for branch prediction, code path analysis, and other possible optimizations, so after comparing enough of the disassembly output to be comfortable with the changes, we also made sure to get this in early enough in the release cycle so that it would get plenty of test exposure before the release. It also required updating quite a bit of code to avoid introducing new lint or compiler warnings or errors, and people building applications on top of Solaris 11.1 and later may need to make similar changes if they want to keep their build logs similarly clean. Previously, if you had a function that was declared with a non-void return type, lint and cc would warn if you didn't return a value, even if you called a function like exit() or panic() that ended execution. For instance: #include <stdlib.h> int callback(int status) { if (status == 0) return status; exit(status); } would previously require a never executed return 0; after the exit() to avoid lint warning "function falls off bottom without returning value". Now the compiler & lint will both issue "statement not reached" warnings for a return 0; after the final exit(), allowing (or in some cases, requiring) it to be removed. However, if there is no return statement anywhere in the function, lint will warn that you've declared a function returning a value that never does so, suggesting you can declare it as void. Unfortunately, if your function signature is required to match a certain form, such as in a callback, you not be able to do so, and will need to add a /* LINTED */ to the end of the function. If you need your code to build on both a newer and an older release, then you will either need to #ifdef these unreachable statements, or, to keep your sources common across releases, add to your sources the corresponding #pragma recognized by both current and older compiler versions, such as: #pragma does_not_return(exit) #pragma does_not_return(panic) Hopefully this little extra work is paid for by the compilers & code analyzers being able to better understand your code paths, giving you better optimizations and more accurate errors & warning messages.

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  • response.sendRedirect - check redirect is up

    - by Trick
    From JSP I just want a redirect to another page... <% response.sendRedirect("http://www.google.com/"); %> Can I check if google.com is up and then redirect (or write a msg else)... Something like that: <% if(ping("www.google.com")) { response.sendRedirect("http://www.google.com/"); } else { // write a message }%> Or <% try { response.sendRedirect("http://www.google.com/"); } catch(SomeException e) { // write a message }%> It is just an JSP page, I don't have any libraires available (like ApacheCommons for http GET methods).

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