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Bug 342975 - Random NPE at first application start
Summary: Random NPE at first application start
Status: RESOLVED WORKSFORME
Alias: None
Product: RAP
Classification: RT
Component: RWT (show other bugs)
Version: 1.4   Edit
Hardware: All All
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
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Keywords:
Depends on:
Blocks:
 
Reported: 2011-04-15 09:57 EDT by Tim Buschtoens CLA
Modified: 2012-03-23 06:18 EDT (History)
2 users (show)

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Description Tim Buschtoens CLA 2011-04-15 09:57:28 EDT 
Stack Trace:


osgi> 2011-04-15 15:55:02.376:INFO:org.mortbay.log:Logging to STDERRorg.mortbay.log via org.mortbay.log.Slf4jLog
2011-04-15 15:55:02.447:INFO::jetty-6.1.x
2011-04-15 15:55:02.499:INFO::Started SelectChannelConnector@0.0.0.0:8383
2011-04-15 15:55:06.553:WARN::ERROR:  /rap
java.lang.NullPointerException
	at org.eclipse.rwt.internal.resources.JSLibraryConcatenator.appendJSLibrary(JSLibraryConcatenator.java:70)
	at org.eclipse.rwt.internal.resources.ResourceUtil.write(ResourceUtil.java:65)
	at org.eclipse.rwt.internal.resources.ResourceManagerImpl.doRegister(ResourceManagerImpl.java:394)
	at org.eclipse.rwt.internal.resources.ResourceManagerImpl.register(ResourceManagerImpl.java:222)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerJavascriptFile(ClientResources.java:339)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerJavascriptFiles(ClientResources.java:300)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerResources(ClientResources.java:289)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.registerResources(DisplayLCA.java:222)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCAFacadeImpl.registerResourcesInternal(DisplayLCAFacadeImpl.java:29)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCAFacade.registerResources(DisplayLCAFacade.java:32)
	at org.eclipse.rwt.internal.service.StartupPageConfigurer.getTemplate(StartupPageConfigurer.java:65)
	at org.eclipse.rwt.internal.service.StartupPage.render(StartupPage.java:68)
	at org.eclipse.rwt.internal.service.StartupPage.send(StartupPage.java:49)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.runLifeCycle(LifeCycleServiceHandler.java:82)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.synchronizedService(LifeCycleServiceHandler.java:54)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.service(LifeCycleServiceHandler.java:42)
	at org.eclipse.rwt.internal.service.ServiceManager$HandlerDispatcher.service(ServiceManager.java:35)
	at org.eclipse.rwt.internal.engine.RWTDelegate.doPost(RWTDelegate.java:46)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126)
	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:60)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:318)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	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$RequestHandler.content(HttpConnection.java:939)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Comment 1 Tim Buschtoens CLA 2011-04-18 06:08:50 EDT 
Got it again opening the controls demo after restarting the server.
Comment 2 Tim Buschtoens CLA 2011-04-19 05:22:41 EDT 
This time i got a slightly different error. Not sure its related, but it was gone after another restart. (Note: MobileWebkitSupport.js has been recently edited in my Workspace.)


osgi> 2011-04-19 11:19:14.415:INFO:org.mortbay.log:Logging to STDERRorg.mortbay.log via org.mortbay.log.Slf4jLog
2011-04-19 11:19:14.507:INFO::jetty-6.1.x
2011-04-19 11:19:16.364:INFO::Started SelectChannelConnector@0.0.0.0:8383
2011-04-19 11:19:35.389:WARN::ERROR:  /rap
org.eclipse.rwt.internal.resources.ResourceRegistrationException: Failed to register resource: org/eclipse/rwt/MobileWebkitSupport.js
	at org.eclipse.rwt.internal.resources.ResourceManagerImpl.register(ResourceManagerImpl.java:225)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerJavascriptFile(ClientResources.java:339)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerJavascriptFiles(ClientResources.java:300)
	at org.eclipse.swt.internal.widgets.displaykit.ClientResources.registerResources(ClientResources.java:289)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.registerResources(DisplayLCA.java:217)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCAFacadeImpl.registerResourcesInternal(DisplayLCAFacadeImpl.java:29)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCAFacade.registerResources(DisplayLCAFacade.java:32)
	at org.eclipse.rwt.internal.service.StartupPageConfigurer.getTemplate(StartupPageConfigurer.java:64)
	at org.eclipse.rwt.internal.service.StartupPage.render(StartupPage.java:68)
	at org.eclipse.rwt.internal.service.StartupPage.send(StartupPage.java:49)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.runLifeCycle(LifeCycleServiceHandler.java:88)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.synchronizedService(LifeCycleServiceHandler.java:59)
	at org.eclipse.rwt.internal.service.LifeCycleServiceHandler.service(LifeCycleServiceHandler.java:46)
	at org.eclipse.rwt.internal.service.ServiceManager$HandlerDispatcher.service(ServiceManager.java:35)
	at org.eclipse.rwt.internal.engine.RWTDelegate.doPost(RWTDelegate.java:46)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126)
	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:60)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:318)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	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$RequestHandler.content(HttpConnection.java:939)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Comment 3 Ivan Furnadjiev CLA 2011-05-09 11:41:48 EDT 
Today I got the NPE for the description too (starting Controls Demo in FF).
Comment 4 Ivan Furnadjiev CLA 2012-03-23 06:18:33 EDT 
A lot of RAP internals have been changed since the bug report and the stack traces are not valid any more (removed classes, changed implementation...). As I didn't get this NPE since then I will close this bug as WORKSFORME. If we get it again, we should reopen it with a "fresh" stack trace.