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  • jboss Resteasy for java 5

    - by Anand
    Is there a resteasy version that runs on jdk 5 enviroment? I tried to compile my code in java 5 but it didnot work saying version problem. Is there a solution here? type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error instantiating servlet class org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879) org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) java.lang.Thread.run(Thread.java:595) root cause java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class javax.ws.rs.core.UriInfo) org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964) org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284) java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) java.lang.Class.getDeclaredConstructors0(Native Method) java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) java.lang.Class.getConstructor0(Class.java:2671) java.lang.Class.newInstance0(Class.java:321) java.lang.Class.newInstance(Class.java:303) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879) org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) java.lang.Thread.run(Thread.java:595) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.31 logs.

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  • JOGL: cannot run java on compiled class file

    - by John Goche
    I am running ubuntu Linux 11.10. I have followed the instructions on the site http://jogamp.org/jogl/www/ and downloaded everything with git to $HOME/jogamp and built everything with ant (although I would have prefered the files installed somewhere under /usr/local). I am trying to run a simple application with JOGL found on the Wikipedia site: http://en.wikipedia.org/wiki/Java_OpenGL In order to compile the file I had to add: export CLASSPATH.:$HOME/jogamp/jogl/build/jogl/classes in order to compile the code. When I run java I get the following: $ java JOGLQuad Exception in thread "main" java.lang.NoClassDefFoundError: javax/media/nativewindow /WindowClosingProtocol at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Caused by: java.lang.ClassNotFoundException: javax.media.nativewindow.WindowClosingProtocol at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 12 more Could not find the main class: JOGLQuad. Program will exit. How do I fix this and where can I find more JOGL code samples that I can compile and run? Thanks, John Goche

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  • Rapid Repository – Silverlight Development

    - by SeanMcAlinden
    Hi All, One of the questions I was recently asked was whether the Rapid Repository would work for normal Silverlight development as well as for the Windows 7 Phone. I can confirm that the current code in the trunk will definitely work for both the Windows 7 Phone and normal Silverlight development. I haven’t tested V.1.0 for compatibility but V2.0 which will be released fairly soon will work absolutely fine.   Kind Regards, Sean McAlinden.

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  • What development terms come from the construction industry?

    - by Renesis
    When talking with colleagues about software design and development principles, I've noticed one of the most common sources for analogies is the construction industry. It would be quite useful to have a list of what programming/development terms and concepts are borrowed from construction industry? (And please provide a description or experiences regarding that topic.) [Credit to Programming concepts taken from the arts and humanities for the idea]

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  • Difference between Windows and Linux development environments?

    - by Ryan
    I have an interview coming up soon for a Business Analyst position and the recruiter mentioned some feedback from a prior candidate that was interviewed who said the interviewers asked him what the difference between a Windows and Linux development environment was. Are there some high level things I need to be aware of from a business point of view when working with a development team or designing an application on Windows vs Linux?

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  • Banner Ad Development: What programming should be required?

    - by FXquincy
    Banner Ad Development Career questions are potentially off-topic, but I've come across job postings wanting Banner Ad Developers. I'm not sure if they're development, design, or a niche particular to actionscript designers. First, What programming knowledge is required for Banner Ads (IDE, languages, Frameworks etc)? Second, is this a niche for designers or developers? How differently do designers and developers see their skills in JavaScript?

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  • Good resource for business development Techniques

    - by Morons
    I work for an IT consulting firm… As I progress in my career I (like most who work for IT firms) am spending more and more time participating in business development, usually as a technical expert. Can any one recommend a good resource (or book) on business development preferably targeting technology businesses? (I am NOT looking for “how to get leads”… I’m looking for “how to conduct a solid sales pitch\ Demo Software” type stuff)

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  • Development: SDK for Social Net

    - by loldop
    I have a task: development sdk for social networking service like facebook, twitter and etc. At now i'm developing facebook-extension-sdk which based on facebook-ios-sdk 3.0. But not all social networking services have good sdks. And all time i improved my facebook-extension-sdk, when i see ugly code :( Please, advise me good techniques to development these sdks (like design-patterns or your own experience or good books/sites). Thanks!

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  • Best Software Development Methodology Environment for Fresh Graduates

    - by newbie
    I am looking online for IT-related jobs and most of the time, they are indicating the need that the candidate must have an experience in certain software development methodology (SCRUM, RAD, Waterfall, Agile, etc). Truly, different companies have different needs. What do you think is the best environment / software development methodology for a fresh graduate to be part of so that they could really be a good programmer? What will be avoided?

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  • C++ Development Cinder/Visual Studio

    - by jayReegs
    I'm currently taking a Data Structures course that involves the development of C++ applications using microsoft visual studio express c++, an application called Cinder, and we turn in assignments via GitHub. I know Mac users in the class use X code to develop to our needs although some small issues arise with compilation that needs some debug work to be done. Windows just isn't cutting it for me anymore...I've welcomed myself to the darkside...I'm wondering if Linux distros have any development tools that would be compatible to create and run these types of applications?

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  • I'm creating my own scalable, rapid prototyping web server. How should I design it?

    - by Mike Willliams
    I'm going to create my own web server that focuses on scalability, rapid prototyping and the use of JavaScript as the server's scripting language, much like node.js. It will use a Model-View-Controller design pattern so a web application can support more concurrent users just by adding hardware -- and not having to redesign the software. Basically, I'm aiming to produce a framework that allows for fast and easy development of cloud applications without the need to write lots of boiler plate code. I've got some questions about this... How hard will it be to put MySQL in the cloud? How could I go about implementing this and make the resulting product free? Will I have to write my own engine or modify an existing one, if I do what should I watch out for? To make this scalable I need to adjust from one server to hundreds of servers this creates the requirement for the servers to be load balancing, how should I do this? If I balance based on the work load per server I would need gateway to handle all the incoming requests. Is it the right idea to have all the servers check into the gateway and update there status. By having the servers run through a gateway if the gateway dies all the incoming requests are ignored. I'm thinking that having all the servers maintain a list of each other, or at least a few I could rebuild the list of servers and establish a new gateway. Is it worth it? Or should I have a backup gateway that could switch out? Should I let the user choose? How should I pick which server handles the database and which handles the page serving? Should I spread the database so that queries are preformed on multiple servers? Which would theoretically improve performance. The servers would need to mirror the database at least once so that if a server goes down the database isn't corrupted. So this brings up writing another question, should I broadcast SQL queries so that all the servers can take a bit of the work load? If I do it that way wouldn't a query clog up the network so that other queries couldn't be preformed? What are my alternatives? Finally, is there a free solution already out there that might need a little modification that suits my needs?

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  • Career Advice: finding challenging work in software and web development

    - by dianovich
    Having left my physics degree early, I started out in the realm of web design / front end web development and was able to get work quite quickly. I moved on to spend a chunk of my time on servers and gained experience with frameworks like Wordpress and Drupal, then the likes of Codeigniter and CakePHP and became comfortable in Debian-based and RHEL/CentOS environments. I ventured in to iOS development and published a couple of native apps to the app store too! I have started to spend a good deal of my time writing Python and have invested a little time in Django. The problem is, I still spend a fair chunk of my time doing more front end web development (writing markup and CSS for site themes, design-lead JavaScript, small applications for which application architecture and software engineering are relatively unimportant or too time consuming to invest in) in my job. What I want to do is really exercise the systematic/logical portion of my brain and tackle challenging problems on a daily basis. I want to have to care about big-oh running times, modularity in software, DRY, performance tuning and development methodologies. I want to work for a firm whose clients say: "Yes, these things are important to us and we'll pay you to get them right." But it is difficult: I have no formal training and am potentially becoming a jack of all trades. Not that being a jack of many trades is necessarily a bad thing, but the scope of work I find myself involved in is far too broad. And, there are only so many hours in a day outside of work! My question is: where do I go from here? I am starting to work on a few open source projects and have started to publish content to my blog. But this isn't likely to make it past the recruitment consultants and HR departments of many-a-firm. And I do not, for example, work in a team that practices agile methodologies, so how do I get work in such a team to gain experience? While I have been responsible for implementing version control and some solid working practices into our current environment, there is only so far I can go in this context. What would convince you that i'm worth taking a risk? What would convince you that i'll have caught up the other guys in your employ in next to no time?

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  • How / Where can I host my Java web application? [closed]

    - by Huliax
    Possible Duplicate: How to find web hosting that meets my requirements? In case you want to skip to the crux of my inquiry just read the bold type. I just finished my CS degree (at 39 years old :-)). For my final project I designed and built a system that can provide local positioning / location awareness to mobile wifi devices (only have Android client thus far). The server receives data from clients, processes it, and responds to the clients with a messages containing information about their respective locations. I would like to continue the project (perhaps release as open source but that is a different discussion). Thus far my server application has been running on the CS department's hardware where I could pretty much do whatever I wanted. I'm getting kicked off that system in a few weeks so I have to find a new home for my server application. I need a host that will let me run my Java server (along w/ mySQL db) -- preferably on the cheap since I haven't yet got a job. I have very little experience with the "real world" of web development / hosting. I'm having trouble figuring out what kind of hosting service will let me run my application as is. If that turns out to be a tall order then I need to know what my options are for changing thing so that I can get up and running with some hosting. As an aside, I'm also researching whether or not I should rewrite this in a different language. Trying to figure out if there is a substantially better (for whatever reason) one for what I'm doing. This might also potentially have a bearing on my hosting needs. One possibility is to write the server in something more widely accepted by hosting services. I have been searching for answers to my question and haven't found quite what I'm looking for. Part of the problem might be that I don't know exactly what terminology to use. If there is a good answer to this question elsewhere please feel free to point me towards it. Thanks for help / advice.

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  • Upgrading to Java 7u65 breaks my Deployment Rule Set for Oracle applications

    - by Don Atreides
    My company uses an older version of an Oracle application that requires Java 6u45. Naturally we want to be secure, so we use a Deployment Rule Set to specify 6u45 for that internal application and let other applications use 7u60. Now that we're ready to upgrade the Java 7 half to 7u67, the Oracle application breaks with "Deployment Rule Set required version 1.6.0_45 not available." Of course it is available, it just can't find it for some reason. As a test, I specified that JavaTester.org should use 6u45 also and it works fine with no issues. But when I try to use the same configuration (7u67 and 6u45) against the Oracle application it fails every time. If I downgrade to 7u60, it works. 7u65 or higher, it breaks. The Oracle application hasn't changed so it must be something different in how 7u65+ is handling Deployment Rule Sets or pathing or something. I'm at a complete loss. ruleset.xml: <?xml version="1.0"?> -<ruleset version="1.0+"> -<rule> <id location="*.mycorp.com"/> <action version="1.6.0_45" permission="run"/> </rule> -<rule> <id location="http://javatester.org"/> <action version="1.6.0_45" permission="run"/> </rule> </ruleset>

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  • SunTlsRsaPremasterSecret KeyGenerator not available

    - by Jill
    Hi, I encountered an error when my application tries to load a RSA Algorithm provider class from JAVA. The exception stack is as follow: javax.jms.JMSException: RSA premaster secret error at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:49) at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1255) at org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent(ActiveMQConnection.java:1350) at org.apache.activemq.ActiveMQConnection.setClientID(ActiveMQConnection.java:388) at com.trendmicro.tmsm.TMSMAgent.open(TMSMAgent.java:63) Caused by: javax.net.ssl.SSLKeyException: RSA premaster secret error at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:97) at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverHelloDone(ClientHandshaker.java:634) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:226) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:623) at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59) at org.apache.activemq.transport.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:115) at java.io.DataOutputStream.flush(DataOutputStream.java:106) at org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:167) at org.apache.activemq.transport.InactivityMonitor.oneway(InactivityMonitor.java:237) at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:168) at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:84) at org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:74) at org.apache.activemq.transport.failover.FailoverTransport.doReconnect(FailoverTransport.java:715) at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:115) at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122) at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:637) Caused by: java.security.NoSuchAlgorithmException: SunTlsRsaPremasterSecret KeyGenerator not available at javax.crypto.KeyGenerator.<init>(DashoA13*..) at javax.crypto.KeyGenerator.getInstance(DashoA13*..) at com.sun.net.ssl.internal.ssl.JsseJce.getKeyGenerator(JsseJce.java:223) at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:89) ... 22 more I've googled the error message and most of posts says it's because JVM cannot find sunjce_provider.jar. However, I can find the file in /Library/Java/Home/lib/ext folder. The platform is Mac OS X 10.6 and Java version is 1.6.0_17. My questions are: Why JVM does not search /Library/Java/Home/lib/ext for jar files? Can we change CLASSPATH or java.ext.dirs property by modify any config file? Any suggestion to solve this problem? Thanks in advance.

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  • Eclipse Galileo won't start after OS X update to 10.6.3

    - by GC
    Hi All, I have just updated os x to 10.6.3 and no Eclipse won't start the logs show the following error, but I can't figure it out. Can anyone shed any light? !SESSION 2010-03-30 10:06:38.244 ----------------------------------------------- eclipse.buildId=M20090917-0800 java.version=1.6.0_17 java.vendor=Apple Inc. BootLoader constants: OS=macosx, ARCH=x86, WS=cocoa, NL=en_US Framework arguments: -product org.eclipse.epp.package.php.product -keyring /Users/gav/.eclipse_keyring -showlocation Command-line arguments: -os macosx -ws cocoa -arch x86 -product org.eclipse.epp.package.php.product -keyring /Users/gav/.eclipse_keyring -showlocation !ENTRY org.eclipse.ui.workbench 2 0 2010-03-30 10:06:40.139 !MESSAGE A handler conflict occurred. This may disable some commands. !SUBENTRY 1 org.eclipse.ui.workbench 2 0 2010-03-30 10:06:40.139 !MESSAGE Conflict for 'com.aptana.ide.editors.views.actions.actionKeyCommand': HandlerActivation(commandId=com.aptana.ide.editors.views.actions.actionKeyCommand, handler=com.aptana.ide.editors.views.actions.ActionKeyCommandHandler, expression=,sourcePriority=0) HandlerActivation(commandId=com.aptana.ide.editors.views.actions.actionKeyCommand, handler=com.aptana.ide.editors.views.actions.ActionKeyCommandHandler, expression=,sourcePriority=0) !ENTRY org.eclipse.ui 4 0 2010-03-30 10:06:40.964 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at org.eclipse.swt.graphics.Device.getFontList(Device.java:369) at org.eclipse.jface.resource.FontRegistry.filterData(FontRegistry.java:465) at org.eclipse.jface.resource.FontRegistry.createFont(FontRegistry.java:499) at org.eclipse.jface.resource.FontRegistry.defaultFontRecord(FontRegistry.java:563) at org.eclipse.jface.resource.FontRegistry.defaultFontData(FontRegistry.java:575) at org.eclipse.jface.resource.FontRegistry.getFontData(FontRegistry.java:591) at org.eclipse.ui.internal.themes.ThemeElementHelper.installFont(ThemeElementHelper.java:116) at org.eclipse.ui.internal.themes.ThemeElementHelper.populateRegistry(ThemeElementHelper.java:59) at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1482) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3405) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3102) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2316) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) It looks like the update may have upgraded the Java version, possibly :S but I don't know if this can be rolled back even if it did update it. java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04-248-10M3025) Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01-101, mixed mode) Thanks in advance!

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  • Joystick input in Java

    - by typoknig
    Hi all, I am making a 2D game in Java and I want to use a joystick to control the movement of some crosshairs. Right now I have it so the mouse can control those crosshairs. My only criteria for this is that the control for the crosshair must stay in the game window unless a user clicks off into another window. Basically I want my game to capture whatever device is controlling the crosshairs much like a virtual machine captures a mouse. The joystick I am using (Thrustmaster Hotas Cougar) comes with some pretty advanced features, so that may make this easier (or harder). I have tried the solution listed on this page, but I am using a 64bit computer and for some reason it does not like that. I have also tried to use the key emulation feature of my joystick, but with little success. Here is what I have so far, any pointer would be appreciated. Main Class: import java.awt.Color; import java.awt.Cursor; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionListener; import java.awt.Graphics; import java.awt.Image; import java.awt.image.BufferStrategy; import java.awt.image.MemoryImageSource; import java.awt.Point; import java.awt.Toolkit; import javax.swing.JFrame; public class Game extends JFrame implements MouseMotionListener{ private int windowWidth = 1280; private int windowHeight = 1024; private Crosshair crosshair; public static void main(String[] args) { new Game(); } public Game() { this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setSize(windowWidth, windowHeight); this.setResizable(false); this.setLocation(0,0); this.setVisible(true); this.createBufferStrategy(2); addMouseMotionListener(this); initGame(); while(true) { long start = System.currentTimeMillis(); gameLoop(); while(System.currentTimeMillis()-start < 5) { //empty while loop } } } private void initGame() { hideCursor(); crosshair = new Crosshair (windowWidth/2, windowHeight/2); } private void gameLoop() { //game logic drawFrame(); } private void drawFrame() { BufferStrategy bf = this.getBufferStrategy(); Graphics g = (Graphics)bf.getDrawGraphics(); try { g = bf.getDrawGraphics(); Color darkBlue = new Color(0x010040); g.setColor(darkBlue); g.fillRect(0, 0, windowWidth, windowHeight); drawCrossHair(g); } finally { g.dispose(); } bf.show(); Toolkit.getDefaultToolkit().sync(); } private void drawCrossHair(Graphics g){ Color yellow = new Color (0xEDFF62); g.setColor(yellow); g.drawOval(crosshair.x, crosshair.y, 40, 40); g.fillArc(crosshair.x + 10, crosshair.y + 21 , 20, 20, -45, -90); g.fillArc(crosshair.x - 1, crosshair.y + 10, 20, 20, -135, -90); g.fillArc(crosshair.x + 10, crosshair.y - 1, 20, 20, -225, -90); g.fillArc(crosshair.x + 21, crosshair.y + 10, 20, 20, -315, -90); } @Override public void mouseDragged(MouseEvent e) { //empty method } @Override public void mouseMoved(MouseEvent e) { crosshair.x = e.getX(); crosshair.y = e.getY(); } private void hideCursor() { int[] pixels = new int[16 * 16]; Image image = Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(16, 16, pixels, 0, 16)); Cursor transparentCursor = Toolkit.getDefaultToolkit().createCustomCursor(image, new Point(0, 0), "invisiblecursor"); getContentPane().setCursor(transparentCursor); } } Another Class: public class Crosshair{ public int x; public int y; public Crosshair(int x, int y) { this.x = x; this.y = y; } }

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  • Error with JSF2 and RichFaces

    - by Miguel Ping
    Hi, I'm trying to use RichFaces on a working JSF2 application. I incorporated the RichFaces jars, changed the web.xml but got the following error: 17:49:13,097 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] Error Rendering View[/login.xhtml]: java.lang.NullPointerExcept ion at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:936) at com.sun.faces.facelets.tag.jsf.CompositeComponentTagHandler.createComponent(CompositeComponentTagHandler.java:154) at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.createComponent(ComponentTagHandlerDelegateImpl.java:311) at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:145) at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:114) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:91) at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:120) at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:204) at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:114) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:91) at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:86) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:91) at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:75) at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:301) at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:360) at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:339) at com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:191) at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:149) at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:86) at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:75) at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:145) at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:716) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:351) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:336) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:242) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:734) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:541) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:479) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:407) at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:318) at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:243) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:559) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:872) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951) at java.lang.Thread.run(Thread.java:619) It seems that some jars are missing, but I cannot seem to find this cause. The above error is the only thing that the log spits out. Here's web.xml: <context-param> <param-name>javax.faces.FACELETS_LIBRARIES</param-name> <param-value>/WEB-INF/faces-validator-tags/general.taglib.xml; /WEB-INF/faces-converter-tags/general.converter.taglib.xml </param-value> </context-param> <!-- Startup Servlet <servlet> <servlet-name>StartUpServlet</servlet-name> <servlet-class>pt.cgd.agile.util.StartupServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> --> <context-param> <param-name>javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER</param-name> <param-value>true</param-value> </context-param> <context-param> <param-name>org.richfaces.SKIN</param-name> <param-value>blueSky</param-value> </context-param> <!-- Making the RichFaces skin spread to standard HTML controls --> <context-param> <param-name>org.richfaces.CONTROL_SKINNING</param-name> <param-value>enable</param-value> </context-param> <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>server</param-value> </context-param> <context-param> <param-name>org.richfaces.SKIN</param-name> <param-value>blueSky</param-value> </context-param> <context-param> <param-name>org.richfaces.CONTROL_SKINNING</param-name> <param-value>enable</param-value> </context-param> <filter> <display-name>RichFaces Filter</display-name> <filter-name>richfaces</filter-name> <filter-class>org.ajax4jsf.Filter</filter-class> </filter> <filter-mapping> <filter-name>richfaces</filter-name> <servlet-name>Faces Servlet</servlet-name> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> </filter-mapping> <listener> <listener-class>com.sun.faces.config.ConfigureListener</listener-class> </listener> <!-- Just here so the JSF implementation can initialize, *not* used at runtime --> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- Just here so the JSF implementation can initialize --> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <login-config> <auth-method>FORM</auth-method> <form-login-config> <form-login-page>/login.jsf</form-login-page> <form-error-page>/loginError.jsf</form-error-page> </form-login-config> </login-config> <error-page> <exception-type>java.lang.Throwable</exception-type> <location>/errors/error.jsf</location> </error-page>

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  • Spring/RMI server error

    - by 4herpsand7derpsago
    We have a Spring MVC web app (WAR) deploying to Tomcat (6.0.35) that launches a thread inside a separate JVM at deploy time (don't ask why - not my design) and then communicates with that thread via RMI over port 8888. Despite being totally convoluded, this was working perfectly fine up until yesterday, and now the thread is failing at startup and despite our best efforts to add logging into the mix, we are hitting a wall. This is the only exception we are able to find in the logs: Jun 12, 2012 3:11:36 AM com.ourapp.ImageController destroy SEVERE: Shutdown Error: Lookup of RMI stub failed; nested exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: java.net.ConnectException: Connection refused Jun 12, 2012 3:11:37 AM org.apache.catalina.core.StandardContext listenerStop SEVERE: Exception sending context destroyed event to listener instance of class org.springframework.web.context.ContextLoaderListener java.lang.NoClassDefFoundError: org/springframework/web/context/ContextCleanupListener at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:80) at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3973) at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4577) at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1165) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1271) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:296) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.ClassNotFoundException: org.springframework.web.context.ContextCleanupListener at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) ... 12 more The ImageController is the Spring MVC Controller that is responsible for kicking off this daemon/spawned RMI thread. Based on the verbage of this error, does anybody have any idea what might be causing this "connection refused" error? Running a netstat -an | grep 8888 (this is a Linux machine) produces no output which means nothing is listening on that port. Thanks in advance for any ideas/suggestions that lead to a fix. Edit: Here's another ConnectionException we're seeing: Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at java.net.Socket.<init>(Socket.java:375) at java.net.Socket.<init>(Socket.java:189) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595) ... 74 more

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  • How to pass initialisation parameters to a web service in Netbeans

    - by Bob Roberts
    I have built a web web service with Netbeans 6.8 using the "Web Service from WSDL" wizard. It has generated the binding classes and a skeleton for the class implementing the web service. I've set some initialization parameters in web.xml, under the servlet corresponding to the web service. Now I'd like to pass those parameters to the class implementing the web service. How can this be achieved (preferably without editing any of the code auto-generated by Netbeans)?

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  • So LibGDX / Java or XNA / C# [on hold]

    - by Israel G.
    I am curious to know what will be better for me - LibGDX / Java or XNA / C#. I am on the same level with C# and Java (I am pretty advanced with both of them). I really want to get into game development, develop indie games and such. So what are the pros and cons of XNA and LibGDX, what do you prefer personally and why? Java - LibGDX is cross platform and uses OpenGL. C# - XNA is for windows only ( you can use monogame but it will hurt performance and other things), Unfortunately, XNA is not going to be supported anymore but I still see people that recommend it over libGDX. (XNA is more popular and has more tutorials then libGDX). So please help me to pick, I really don't know what to choose. Thanks a lot!

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  • Catering for client's web-hosting needs, minus the headaches ?

    - by julien
    I'll be trying to sell my Ruby on Rails development skills to small local businesses. It seems I'd be shooting myself in the foot if I couldn't manage to put their apps into production, in fact catering for this would be a selling point. However, I do not want to bill every client monthly for the cost of their hosting, they would have to be the contract holders with the hosting service, and I'd only consult if they needed technical help when scaling. I've looked on one hand at cloud platforms, like engine yard, which seem like they would be too costly for the smaller clients, and on the other hand at vps providers which seem they would not be client friendly enough. Has anyone faced the same issue and come up with a decent solution ?

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  • Open source management game in java

    - by jcw
    I am trying to find an open source sport management game, much like the link below, but am failing to do so. There are two links provided in the below question that are both fine,'except for one minor problem - I only know java! Is there an open source sports manager project? After some googling, I have been unsuccessful in finding a sports management game that is written in java. I am do not particullarly care about the type of sport, becuase I am mostly interested in mechanics. Does anyone know of any such projects or am I out of luck on java?

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  • java web development, what skills do I need?

    - by mrblah
    I want to learn, at least at a basic level, how to build java web applications (coming from a .net background). Meaning, I would like to be able to build, deploy a simple cms type application from the ground up. What exactly do I need to learn? Tomcat seems to be a good web server for Java. What options are there for the web? I know there is hibernate for an ORM. Does java have MVC? what about JSP? can MVC and JSP be together? beans? Maybe a book that covers all of these?

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  • Java: implementation of simple commands

    - by HH
    I have created a pkg for my regular simple commands. They are non-static, to be more extensible, but somewhat more time-consuming to use because of creating object to use one. My other classes use them. $ ls *.java CpF.java IsBinary.java RmLn.java Tools.java F2S.java IsRoot.java SaveToDisk.java WordCount.java Filters.java ModRelativePaths.java SetWord.java WordNumber.java Find.java powerTools.java Sort.java Which option would you choose to use them easier? to develop a small interface like 'powerTools.java' for the pkg. to create a class with static methods for them. to add a static method to each class to stop overusing 'creating too many files' and centralising some? sthing else?

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