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• Creating java package on ubuntu?

  - by Gaurav_Java

  I am new to java. Here I am trying to create java package. And try to compile it from another directory . But there is an error like bash: /home/gaurav/Desktop/package2/B.java: Permission denied Here is fy first code and directory is /home/Desktop/package/A.java package package1; public class A { interface A1 { void show(); void display(); } } class B extends A { public void show() { System.out.println("This is show method()"); } public void display() { System.out.println("this is Display metthod()"); } } For compilation I did this command it's works fine. pwd is /home/gaurav javac /home/gaurav/Desktop/package/A.java When I try to compile B.java which is in my Other drive /media/gaurav/iPlay/package/B.java package package2; class B { public static void main(String args[]) { System.out.println("Reached in Main method of B"); package1.A Object = new A(); } } I tired this vommand (grom previous working directory) javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java Error Comes javac -cp /home/gaurav/Desktop/;/media/gaurav/iPlay/package/B.java javac: no source files Usage: javac <options> <source files> use -help for a list of possible options bash: /media/gaurav/iPlay/package/B.java: Permission denied What i am doing wrong? Please it my assignment I am not able to move further without this. I changed permissions.

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• The annoyed configuration of java-6-openjdk

  - by kit.yang

  I want to change the java environment to java-6-openjdk. /etc/environment: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" JAVA_HOME=/usr/lib/jvm/java-6-openjdk/ CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib java -version: java version "1.6.0_20" OpenJDK Runtime Environment (IcedTea6 1.9.5) (6b20-1.9.5-0ubuntu1~10.04.1) OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode) javac -version:javac 1.6.0_20 But in the shell: the echo $JAVA_HOME result is /usr/lib/jvm/java-6-sun-1.6.0.22 while the $CLASSPATH is /usr/lib/jvm/java-6-sun-1.6.0.22/lib. How to find the other files in which $JAVA_HOME & $CLASSPATH value is setted by the java-6-sun-1.6.0.22 location?

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• What package creates /usr/lib/jvm/default-java?

  - by François Beausoleil

  I'm trying to setup Jenkins on 11.10 using only Ubuntu-provided packages. After apt-get install jenkins, Jenkins won't start. I traced it to an absent /usr/lib/jvm/default-java/bin/java. Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-===============================-=======================================-============================================================================== ii jenkins 1.409.1-0ubuntu4.2 Continuous Integration and Job Scheduling Server ii openjdk-6-jre 6b24-1.11.3-1ubuntu0.11.10.1 OpenJDK Java runtime, using Hotspot JIT # update-alternative --config java There is only one alternative in link group java: /usr/lib/jvm/java-6-openjdk/jre/bin/java Nothing to configure. What package creates /usr/lib/jvm/default-java ?

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• Pointer position way off in Java Application menu's when using gnome-shell

  - by Hailwood

  When using any java application in gnome-shell if the window is maximised the pointer position is way off; but only on the menu's, in the editor, or the side panel, the pointer is fine. This only presents itself when the window is maximized, and it seems that the further away from 0x0 the window is when you maximise it, the bigger the pointer offset. From what I have gathered it has to do with the window not updating it's size when it gets maximised. The other issue is that when a gnome-shell notification appears, when clicking on it, I lose the ability to type in the editor, I can select text etc, but can't give it focus to type. I must bring up some other text input (e.g. right click on a file on the left, select rename, which brings up a rename dialog) after that I can type in the editor again. So, how can I fix this? Below is as much information as I can think to provide $ gnome-shell --version GNOME Shell 3.6.1 $ java -version java version "1.7.0_09" Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode) $ file /etc/alternatives/java /etc/alternatives/javac /etc/alternatives/java: symbolic link to '/usr/lib/jvm/java-7-oracle/jre/bin/java' /etc/alternatives/javac: symbolic link to '/usr/lib/jvm/java-7-oracle/bin/javac'

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• Oracle Sun Java Roadshow - Budapest

  - by peter.nagy

  Még a Sun Magyarország gondozásában, akik korábban is vitték ezen rendezvényeket újabb Java Roadshow esemény lesz. A sok külföldi eloado mellett hazai is lesz. A témák pedig meglehetosen aktuálisak: -Java at Oracle -Java in Embedded (SE, ME) -Java For Business -What is New in Java - Java FX, JDK 7 Szóval tessék jönni és meghallgatni, megvitatni. Logisztika: 2010. Május 20. 08:30 - 16:30 Ramada Plaza Budapest Hotel (1036 Árpád fejedelem útja 94.)

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• Oracle releases Java Embedded Suite 7.0 for your embedded needs

  - by hinkmond

  Don't you just want Java Embedded Suite 7.0? Don't you just need Java Embedded Suite 7.0? Let me hear you say: "Yeah!" See: Yeah, Java Embedded Suite 7.0! Here's a quote: Oracle today announced Oracle Java Embedded Suite 7.0, a new, packaged offering that facilitates creating applications across a wide range of embedded systems including network appliances, healthcare devices, home gateways and routers... It's all good. If you need Java technology for your embedded device, Java Embedded Suite 7.0 has the goods: Java SE Embedded runtime, Java DB, Glassfish (mini EE server), and Jersey Web Services. Hinkmond

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• Prepared statement alternatives for this middle-man program?

  - by user2813274

  I have an program that is using a prepared statement to connect and write to a database working nicely, and now need to create a middle-man program to insert between this program and the database. This middle-man program will actually write to multiple databases and handle any errors and connection issues. I would like advice as to how to replicate the prepared statements such as to create minimal impact to the existing program, however I am not sure where to start. I have thought about creating a "SQL statement class" that mimics the prepared statement, only that seems silly. The existing program is in Java, although it's going to be networked anyways so I would be open to writing it in just about anything that would make sense. The databases are currently MySQL, although I would like to be open to changing the database type in the future. My main question is what should the interface for this program look like, and does doing this even make sense? A distributed DB would be the ideal solution, but they seem overly complex and expensive for my needs. I am hoping to replicate the main functionality of a distributed DB via this middle-man. I am not too familiar with sql-based servers distributing data (or database in general...) - perhaps I am fighting an uphill battle by trying to solve it via programming, but I would like to make an attempt at least.

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• Why do almost all Java jobs (postings and from recruiters) say J2EE rather than the newer JEE versions?

  - by Rick

  I'm still fairly new to Java but have definite comfort now working within the framework I am used to which would mainly be focused on Spring, Hibernate and JEE 6. It seems like every time I talk to a recruiter all they do is throw around the keyword "J2EE", they need someone with J2EE experience, etc. I am aware that legacy systems would still be using J2EE but it seems like at least some jobs would be advertising JEE now. Just curious if they are just stuck with some keyword that they can't seem to wrap their heads around it having a newer version or what. Having not done Java all that long, I haven't used J2EE specifically but wouldn't it be fairly easy to adapt having used the newer enterprise edition? Just curious to hear anything about this from someone with more experience.

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• Java warnings on kubuntu 11.10

  - by Geo Papas

  Hello i am getting warnings after i have installed java on kubuntu 11.10. The java programs run but i always get 4 warnings: $ java Warning: no leading - on line 1 of `/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/jvm.cfg' Warning: missing VM type on line 1 of `/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/jvm.cfg' Warning: no leading - on line 1 of `/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/jvm.cfg' Warning: missing VM type on line 1 of `/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/jvm.cfg' What am i missing? Thanks in advance! the content of the file /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/amd64/jvm.cfg is: /usr/lib/jvm/java-6-sun # # %W% %E% # # Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. # ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. # # List of JVMs that can be used as an option to java, javac, etc. # Order is important -- first in this list is the default JVM. # NOTE that this both this file and its format are UNSUPPORTED and # WILL GO AWAY in a future release. # # You may also select a JVM in an arbitrary location with the # "-XXaltjvm=<jvm_dir>" option, but that too is unsupported # and may not be available in a future release. # -server KNOWN -client IGNORE -hotspot ERROR -classic WARN -native ERROR -green ERROR

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• Java installation for Solaris Studio 12.2

  - by DemiSheep

  I have Solaris Studio almost working. My only issue seems to be Java. Here is what I get: ============================ aflory@aflory-laptop:~$ solstudio & [1] 1723 aflory@aflory-laptop:~$ Solaris Studio is unable to find a supported version of Java. Solaris Studio supports Java version 1.6.0_13 and newer and looks for a valid Java installation in the following order: 1) Location specified with --jdkhome command line option 2) In PATH environment variable 3) At /usr/jdk/latest location, if exists 4) At /usr/java location, if exists 5) At /usr location, if exists ============================ I try typing --jdkhome in the console but I get an command not found error. I have added the following to my /home/aflory/.bashrc file: PATH=$PATH:/usr/java/jdk1.6.0_24/bin:/home/aflory/solstudio12.2/bin export PATH I am running Ubuntu 10.04 64bit. I tried installing the 64 bit version of Java JDK, then I tried installing the 32bit version of Java JDK. I don't believe there is a 64bit version of Solaris Studio.

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• JavaOne 2012 - Java Certification

  - by sowmya

  The Java Tutorials are a great resource to learn the Java language and prepare for the JDK 7 certification exams. The lesson titled Preparation for Java Programmer Language Certification simplifies the learning process by mapping the Java certification objectives to relevant sections in the Java Tutorials. The JavaOne 2012 session titled Java Certifications: Learn, Pass, and Teach also provides more information. - Sowmya

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• Suddenly unable to export to war file from exclipse

  - by Codeguy007

  I been working on this Servlet project all morning and now suddenly I cannot get eclipse to export the project to a war file. I tried restarting eclipse and cleaning the project but I just get the same result. Any ideas? org.eclipse.core.runtime.CoreException: Extended Operation failure: org.eclipse.jst.j2ee.internal.web.archive.operations.WebComponentExportOperation at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard.performFinish(DataModelWizard.java:182) at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:742) at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:373) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:618) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:227) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293) at org.eclipse.jface.window.Window.runEventLoop(Window.java:820) at org.eclipse.jface.window.Window.open(Window.java:796) at org.eclipse.ui.actions.ExportResourcesAction.run(ExportResourcesAction.java:180) at org.eclipse.ui.actions.BaseSelectionListenerAction.runWithEvent(BaseSelectionListenerAction.java:168) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:546) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:490) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:402) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) org.eclipse.core.runtime.CoreException[0]: org.eclipse.core.commands.ExecutionException: Error exportingWar File at org.eclipse.jst.j2ee.internal.archive.operations.J2EEArtifactExportOperation.execute(J2EEArtifactExportOperation.java:103) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl$1.run(DataModelPausibleOperationImpl.java:376) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1797) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.runOperation(DataModelPausibleOperationImpl.java:401) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.runOperation(DataModelPausibleOperationImpl.java:352) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.doExecute(DataModelPausibleOperationImpl.java:242) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.executeImpl(DataModelPausibleOperationImpl.java:214) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.cacheThreadAndContinue(DataModelPausibleOperationImpl.java:89) at org.eclipse.wst.common.frameworks.internal.datamodel.DataModelPausibleOperationImpl.execute(DataModelPausibleOperationImpl.java:202) at org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard$1$CatchThrowableRunnableWithProgress.run(DataModelWizard.java:211) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113) Caused by: org.eclipse.jst.j2ee.commonarchivecore.internal.exception.SaveFailureException: IWAE0017E Unable to replace original archive: C:\Users\mark\uploads\myfirstjsp.war at org.eclipse.jst.j2ee.commonarchivecore.internal.impl.ArchiveImpl.cleanupAfterTempSave(ArchiveImpl.java:322) at org.eclipse.jst.j2ee.commonarchivecore.internal.impl.ArchiveImpl.saveAsNoReopen(ArchiveImpl.java:1182) at org.eclipse.jst.j2ee.internal.web.archive.operations.WebComponentExportOperation.export(WebComponentExportOperation.java:54) at org.eclipse.jst.j2ee.internal.archive.operations.J2EEArtifactExportOperation.execute(J2EEArtifactExportOperation.java:95) ... 10 more

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• Problem with Google Calendar API invocation at server side

  - by Raffo

  Hi guys, I have problems with the invocation of the Google Calendar API. I downloaded the library for java and I added as external JAR in eclipse the following files: gdata-core, gdata-calendar, gdata- calendar-meta, gdata-client-meta, gdata-client. Then, I created a the method as it follows: import com.google.gdata.client.calendar.CalendarService; import com.google.gdata.data.calendar.CalendarEntry; import com.google.gdata.data.calendar.CalendarFeed; import com.google.gwt.user.server.rpc.RemoteServiceServlet; public class GCalServImpl extends RemoteServiceServlet implements GCalServ { @Override public String RetrieveCalendars() { // TODO Auto-generated method stub // Create a CalenderService and authenticate try{ CalendarService myService = new CalendarService("taskR"); myService.setUserCredentials(***username***, "***password***"); // Send the request and print the response URL feedUrl = new URL("http://www.google.com/calendar/feeds/default/ allcalendars/full"); CalendarFeed resultFeed = myService.getFeed(feedUrl, CalendarFeed.class); System.out.println("Your calendars:"); System.out.println(); String s = ""; for (int i = 0; i < resultFeed.getEntries().size(); i++) { CalendarEntry entry = resultFeed.getEntries().get(i); s=entry.getTitle().getPlainText(); System.out.println("\t" + s); return s; } }catch(Exception e){ e.printStackTrace(); } return null; } I then call it from the client side doing a basic async invocation. If I try to launch the program I got the following errors: WARNING: Error for /taskr/cal java.lang.NoClassDefFoundError: com/google/gdata/client/calendar/ CalendarService at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) at java.lang.Class.getConstructor0(Class.java:2699) at java.lang.Class.newInstance0(Class.java:326) at java.lang.Class.newInstance(Class.java:308) at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153) at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java: 428) at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java: 339) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 487) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1166) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: 51) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: 43) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java: 122) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java: 70) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at com.google.appengine.tools.development.JettyContainerService $ApiProxyHandler.handle(JettyContainerService.java:349) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 542) at org.mortbay.jetty.HttpConnection $RequestHandler.content(HttpConnection.java:938) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: 409) at org.mortbay.thread.QueuedThreadPool $PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.ClassNotFoundException: com.google.gdata.client.calendar.CalendarService at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass(IsolatedAppClassLoader.java: 151) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) ... 33 more What can I do??

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• Setting Java 1.6 as the default on Mac OS X 10.5.8

  - by Eyvind

  How can I set Java 1.6 to be the default for my MacBook Pro Intel Core 2 Duo with OS X 10.5.8? I have installed the latest software update, and dragged the Java SE 6 64-bit choice to the top in the "Java Preferences" application (and even rebooted), but still, on the command line, java -version responds with: java version "1.5.0_24" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_24-b02-357-9M3165) Java HotSpot(TM) Client VM (build 1.5.0_24-149, mixed mode, sharing) Any ideas?

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• Nginx virtual server only partially working with Java application

  - by MFB

  Final Cut Server is a Java application (made by Apple) which launches from a web page. I have Nginx in front of this web server (amongst others) and, whilst the web server can be browsed externally, the Java app fails to launch correctly and throws the errors below. Can anyone offer clues as to what additional config I many have to add to Nginx to get this working? My existing Nginx config: user xxxx; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 1024; # multi_accept on; } http { sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; include /etc/nginx/conf/mime.types; default_type application/octet-stream; access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; gzip on; gzip_disable "msie6"; server { server_name _; return 444; } upstream fcs-site { server 10.10.5.20:8080; } server { listen 80; server_name example.com 10.10.5.90; access_log /var/log/nginx/fcs_access.log; error_log /var/log/nginx/fcs_error.log; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 60s; proxy_send_timeout 90s; proxy_read_timeout 90s; proxy_buffering off; proxy_temp_file_write_size 64k; proxy_pass http://fcs-site; proxy_redirect off; } } upstream myapp-site { server 127.0.0.1:6543; } server { listen 80; server_name otherexample.com www.otherexample.com; rewrite ^ https://$server_name$request_uri? permanent; } server { listen 443; ssl on; ssl_certificate /etc/ssl/otherapp.crt; ssl_certificate_key /etc/ssl/otherapp.key; server_name otherexample.com www.otherexample.com; access_log /var/log/nginx/otherapp_access.log; error_log /var/log/nginx/other_error.log; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 60s; proxy_send_timeout 90s; proxy_read_timeout 90s; proxy_buffering off; proxy_temp_file_write_size 64k; proxy_pass http://myapp-site; proxy_redirect off; } location /static { root /www; expires 30d; add_header Cache-Control public; access_log off; } } Java errors: com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://example.com:8080/FinalCutServer/FinalCutServer_mac.jnlp at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source) at com.sun.deploy.net.DownloadEngine._downloadCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source) at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.launch(Unknown Source) at com.sun.javaws.Main.launchApp(Unknown Source) at com.sun.javaws.Main.continueInSecureThread(Unknown Source) at com.sun.javaws.Main.access$000(Unknown Source) at com.sun.javaws.Main$1.run(Unknown Source) at java.lang.Thread.run(Thread.java:722) java.net.ConnectException: Operation timed out at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:378) at sun.net.www.http.HttpClient.openServer(HttpClient.java:473) at sun.net.www.http.HttpClient.(HttpClient.java:203) at sun.net.www.http.HttpClient.New(HttpClient.java:290) at sun.net.www.http.HttpClient.New(HttpClient.java:306) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849) at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source) at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source) at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source) at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source) at com.sun.deploy.net.DownloadEngine._downloadCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResourceCacheEntry(Unknown Source) at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source) at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.launch(Unknown Source) at com.sun.javaws.Main.launchApp(Unknown Source) at com.sun.javaws.Main.continueInSecureThread(Unknown Source) at com.sun.javaws.Main.access$000(Unknown Source) at com.sun.javaws.Main$1.run(Unknown Source) at java.lang.Thread.run(Thread.java:722)

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• 32-bit java dominates my PATH magically

  - by Kos

  I have a 32-bit Java installed just for Chrome and 64-bit Java JDK for everything else. When I type java -version in the cmd, the 32-bit Java answers: C:\>java -version java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing) This is the 32-bit JRE installed for Chrome (the installer name was chromeinstall.exe). However, I'd like the default Java to be this one: C:\>"Program Files\Java\jre6\bin\java.exe" -version java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) And for the fun part, only the 64-bit one is in PATH! C:\>echo %PATH% C:\Windows\system32;C:\Program Files\Java\jre6\bin (snipped irrelevant entries) So long story short: 64-bit JRE is in PATH, but 32-bit JRE is ran by default. What is happening here? How to fix it? Tried reinstalling the 64-bit JDK as a whole, didn't help.

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• Sometimes Java web app hang

  - by zhongshu

  The web app occasionally get hang for about 30 seconds when user request a web page, the server's CPU and memory usage are ok, and the jstack shows: "http-9999-3" daemon prio=6 tid=0x552f3400 nid=0xf40 runnable [0x578fc000] java.lang.Thread.State: RUNNABLE at org.eclipse.jdt.internal.compiler.parser.Parser.getTypeReference(Parser.java:8354) at org.eclipse.jdt.internal.compiler.parser.Parser.consumeClassHeaderExtends(Parser.java:2125) at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule(Parser.java:5107) at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:9020) at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:9251) at org.eclipse.jdt.internal.compiler.parser.Parser.parse(Parser.java:9208) at org.eclipse.jdt.internal.compiler.parser.Parser.dietParse(Parser.java:7864) at org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:587) at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:357) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:371) at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:413) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:317) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:295) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:282) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317) - locked <0x10a75fc0> (a org.apache.jasper.servlet.JspServletWrapper) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:535) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:472) ...... seems it's related with some jsp files, how to find the root cause? thanks.

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• java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest

  - by pAkY88

  I'm developing a servlet that receives a multipart request with content of multiple files, and I'm using apache commons file upload libraries. When I call parseRequest(request); method servlet throws following exception: GRAVE: Servlet.service() for servlet DiffOntology threw exception java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest at org.apache.commons.fileupload.servlet.ServletRequestContext.getContentType(ServletRequestContext.java:73) at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.(FileUploadBase.java:882) at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331) at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:349) at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126) at DiffOntology.doPost(DiffOntology.java:38) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) I put all libraries in WEB-INF/lib.

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• Can't find the source of an exception in Java

  - by Invader Zim

  Basically an exception is being thrown and I can't find the reason. Here is what I get on the console: Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 at org.apache.batik.gvt.renderer.StrokingTextPainter.computeTextRuns(Unknown Source) at org.apache.batik.gvt.renderer.StrokingTextPainter.getTextRuns(Unknown Source) at org.apache.batik.gvt.renderer.StrokingTextPainter.getOutline(Unknown Source) at org.apache.batik.gvt.renderer.BasicTextPainter.getGeometryBounds(Unknown Source) at org.apache.batik.gvt.TextNode.getGeometryBounds(Unknown Source) at org.apache.batik.gvt.TextNode.getSensitiveBounds(Unknown Source) at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.getSensitiveBounds(Unknown Source) at org.apache.batik.gvt.CompositeGraphicsNode.nodeHitAt(Unknown Source) at org.apache.batik.gvt.event.AbstractAWTEventDispatcher.dispatchMouseEvent(Unknown Source) at org.apache.batik.gvt.event.AbstractAWTEventDispatcher.dispatchEvent(Unknown Source) at org.apache.batik.gvt.event.AWTEventDispatcher.dispatchEvent(Unknown Source) at org.apache.batik.gvt.event.AbstractAWTEventDispatcher.mouseEntered(Unknown Source) at org.apache.batik.swing.gvt.AbstractJGVTComponent$Listener.dispatchMouseEntered(Unknown Source) at org.apache.batik.swing.svg.AbstractJSVGComponent$SVGListener.dispatchMouseEntered(Unknown Source) at org.apache.batik.swing.gvt.AbstractJGVTComponent$Listener.mouseEntered(Unknown Source) at java.awt.AWTEventMulticaster.mouseEntered(Unknown Source) at java.awt.AWTEventMulticaster.mouseEntered(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.trackMouseEnterExit(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$400(Unknown Source) at java.awt.EventQueue$2.run(Unknown Source) at java.awt.EventQueue$2.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) It is obviously from a batik lib that I use to paint SVG files, but I made sure that nothing is painted until the document is loaded, ready and showing on screen. When thrown nothing is painted. Another interesting thing is the timing of the throwing. I am unable to find any logical patern, as sometimes it is thrown as soon as I initiate the class and sometimes it needs more then five minutes. In addition to this, as far as I tested there is no single action that calls repaint() that triggers it or rather all do. I am new to Java and all the other exceptions had the class and row number of where they were thrown so I don't know what to do here. Any suggestions would be greatly appreciated. The code is enormous so I'll put just the paint method and if anything additional is needed please say so. @Override public void paint(Graphics g) { if(documentLoaded && showingOnScreen){ try{ rad = (int)(radInit+zoom*faktorRad); //max rad = 20 super.paint(g); Graphics2D g2d = (Graphics2D) g; paintElements(g2d); } catch(NullPointerException nulle){ } } } edit: There is no array in my class so i can't check any index. I think that this exception is thrown from a library I use, but it's a .jar file and I don't know how to open it.

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• JOAL with JNLPAppletLauncher Problem

  - by user347445

  Hi, I am developing a Java Applet that makes use of JOAL. In order to avoid annoying dialogues I wanted to load JOAL with the JNLPAppletLauncher as it is shown on https://jogl-demos.dev.java.net/applettest-joal.html Unfortunately with this approach I get this exception: JNLPAppletLauncher.loadLibrary("joal_native") loading: C:\Users\Barbara\AppData\Local\Temp\jnlp-applet\jln7379734545861869319\jln1640167325490042232\joal_native.dll Exception in thread "AWT-EventQueue-2" java.lang.RuntimeException: Can not get proc address for method "alcCaptureCloseDevice": Couldn't set value of field "_addressof_alcCaptureCloseDevice" in class net.java.games.joal.impl.ALCProcAddressTable at com.sun.gluegen.runtime.ProcAddressHelper.resetProcAddressTable(ProcAddressHelper.java:113) at net.java.games.joal.impl.ALProcAddressLookup.resetALCProcAddressTable(ALProcAddressLookup.java:109) at net.java.games.joal.impl.ALCImpl.alcOpenDevice(ALCImpl.java:341) at net.java.games.joal.util.ALut.alutInit(ALut.java:69) at demos.devmaster.lesson1.SingleStaticSource.initialize(SingleStaticSource.java:194) at demos.devmaster.lesson1.SingleStaticSource.access$000(SingleStaticSource.java:57) at demos.devmaster.lesson1.SingleStaticSource$1.actionPerformed(SingleStaticSource.java:79) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.RuntimeException: Unable to find and load OpenAL library at net.java.games.joal.impl.ALProcAddressLookup$DynamicLookup.dynamicLookupFunction(ALProcAddressLookup.java:66) at com.sun.gluegen.runtime.ProcAddressHelper.resetProcAddressTable(ProcAddressHelper.java:106) ... 30 more I am using Firefox 3.6.3, Java 1.6._017 and am on a Windows 7 Machine. I also tried this on another computer with Windows XP and on one with Linux, always with the same result, so it does not seem to be specific for my computer. I also get the same result for IE8. Any ideas how I could fix this? Thank you very much.

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• Java Embedded Releases

  - by Tori Wieldt

  Oracle today announced a new product in its Java Platform, Micro Edition (Java ME) product portfolio, Oracle Java ME Embedded 3.2, a complete client Java runtime Optimized for resource-constrained, connected, embedded systems.  Also, Oracle is releasing Oracle Java Wireless Client 3.2, Oracle Java ME Software Development Kit (SDK) 3.2. Oracle also announced Oracle Java Embedded Suite 7.0 for larger embedded devices, providing a middleware stack for embedded systems. Small is the new big! Introducing Oracle Java ME Embedded 3.2  Oracle Java ME Embedded 3.2 is designed and optimized to meet the unique requirements of small embedded, low power devices such as micro-controllers and other resource-constrained hardware without screens or user interfaces. These include: On-the-fly application downloads and updates Remote operation, often in challenging environments Ability to add new capabilities without impacting the existing functions Support for hardware with as little as 130 kB RAM and 350 kB ROM Oracle Java Wireless Client 3.2 Oracle Java Wireless Client 3.2 is built around an optimized Java ME implementation that delivers a feature-rich application environment for mass-market mobile devices. This new release: Leverages standard JSRs, Oracle optimizations/APIs and a flexible porting layer for device specific customizations, which are tuned to device/chipset requirements Supports advanced tooling functions, such as memory and network monitoring and on-device tooling Offers new support for dual SIM functionality, which is highly useful for mass-market devices supported by multiple carriers with multiple phone connections Oracle Java ME SDK 3.2 Oracle Java ME SDK 3.2 provides a complete development environment for both Oracle Java ME Embedded 3.2 and Oracle Java Wireless Client 3.2. Available for download from OTN, The latest version includes: Small embedded device support In-field and remote administration and debugging Java ME SDK plug-ins for Eclipse and the NetBeans Integrated Development Environment (IDE), enabling more application development environments for Java ME developers. A new device skin creator that developers can use to generate their custom device skins for testing their applications. Oracle Embedded Suite 7.0 The Oracle Java Embedded Suite is a new packaged solution from Oracle (including Java DB, GlassFish for Embedded Suite, Jersey Web Services Framework, and Oracle Java SE Embedded 7 platform), created to provide value added services for collecting, managing, and transmitting data to and from other embedded devices.The Oracle Java Embedded Suite is a complete device-to-data center solution subset for embedded systems.  See Java Me and Java Embedded in Action Java ME and Java Embedded technologies will be showcased for developers at JavaOne 2012 in over 60 conference sessions and BOFs, as well as in the JavaOne Exhibition Hall. For business decision makers, the new event Java Embedded @ JavaOne you learn more about Java Embedded technologies and solutions.

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• Problem Updating/Installing Java

  - by Click Upvote

  I've had Java installed on my computer for a while. However lately, whenever I go to a website which has got a java applet in it, i only see a white box where the applet previously used to run (this is happening on multiple sites, not just one). I figured I might have to download java again, so I went to this page and downloaded the installer. However, each time the installer finishes downloading whatever it needs to, I get the error: 'Unable to uncompress java installer' (or perhaps its 'Unable to uncompress downloaded files'. What shall I do? I'm using Windows XP, and I'm still able to run Netbeans on the computer, the problem seems to only be with applets, and occurs in all browsers.

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• Combinatorial explosion of interfaces: How many is too many?

  - by mga

  I'm a relative newcomer to OOP, and I'm having a bit of trouble creating good designs when it comes to interfaces. Consider a class A with N public methods. There are a number of other classes, B, C, ..., each of which interacts with A in a different way, that is, accesses some subset (<= N) of A's methods. The maximum degree of encapsulation is achieved by implementing an interface of A for each other class, i.e. AInterfaceForB, AInterfaceForC, etc. However, if B, C, ... etc. also interact with A and with each other, then there will be a combinatorial explosion of interfaces (a maximum of n(n-1), to be precise), and the benefit of encapsulation becomes outweighed by a code-bloat. What is the best practice in this scenario? Is the whole idea of restricting access to a class's public functions in different ways for other different classes just silly altogether? One could imagine a language that explicitly allows for this sort of encapsulation (e.g. instead of declaring a function public, one could specify exactly which classes it is visible to); Since this is not a feature of C++, maybe it's misguided to try to do it through the back door with interaces?

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• Newbie question about Java

  - by Rob Nicholson

  Okay, I know that Java is a language but somebody has asked me if they can write a web application to interface in with a web app I've written in ASP.NET. I'm implementing a web service to serve up an XML so it's pretty language agnostic. However, I'm not 100% sure whether going down the Java route makes a lot of sense. I was kind of expecting PHP or ASP.NET server side code with maybe some Ajax/JavaScript or maybe a heavier client JavaScript program using JScript. Could some kind sole explain the basic Java environment when it comes with webapps. I've inferred the following - am I barking up the right tree? Java when run like ASP.NET is called JSP JavaBeans is a bit like the .NET framework, i.e. it's a library of re-usable components Java EE is a bit like ASP.NET in that it's a framework for building web pages on a server Java can also run on the client but it needs the Java VM installing When running Java on the client, can you use JavaBeans and is there a framework? Can it also use JScript? I don't think so as JScript is JavaScript library. Whilst running Java on the server would be okay, this is a relatively small application and therefore Java sounds like a bit of overkill. PHP or ASP.NET feels a better fit. But I don't think they should go down the Java applet in the browser and it adds complexity that's not needed. Thanks, Rob.

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• Chrome Java Plugin not working after moving Java installation directory

  - by Florian Peschka

  I recently moved all my Java installations from C:\Program Files\Java to D:\Java, as my C:\ partition only had a few MB of free space left and windows kept on bugging me about it. I also edited every registry entry in HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft that pointed to the old directory to now point to the new one. Then changed the PATH variables and removed the old files, did a restart, and all Java applications work just fine. Yet, Chrome is the only application that seems to have a problem with what I did, as the Java Plugin isn't recognized any more. Are there any registry entires I may have missed? Maybe in the Chrome registry? How can I make this work again?

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