JBossDevStudio 8 with EAP - Error on startup

[franzcrack]

Last week I downloaded and installed JBoss Developer Studio with EAP, to develop an EE web application on Openshift.com for personal use.

JBDevStudio version is 8.0.0.GA-v20141020-1042-B317

I have experienced since problems when launching it.

It often crashes for apparently random reasons and with no particular conditions on my pc just after double clicking on the icon on start menu.

When it crashes, it reports the following status:

Then, unexpectedly, some rare times, it succeeds to start, reporting a null pointer exception in a window (but correctly working  after i close that window).

These are the details of the installation as taken from help -> installation details -> configuration:

eclipse.vm=C:\Program Files (x86)\Java\jre7\bin\javaw.exe

java.runtime.version=1.7.0_67-b01

java.specification.name=Java Platform API Specification

java.specification.vendor=Oracle Corporation

java.specification.version=1.7

java.vendor=Oracle Corporation

java.vendor.url=http://java.oracle.com/

java.vendor.url.bug=http://bugreport.sun.com/bugreport/

java.version=1.7.0_67

java.vm.info=mixed mode

java.vm.name=Java HotSpot(TM) Client VM

java.vm.specification.name=Java Virtual Machine Specification

java.vm.specification.vendor=Oracle Corporation

java.vm.specification.version=1.7

java.vm.vendor=Oracle Corporation

java.vm.version=24.65-b04

os.arch=x86

os.name=Windows 7

os.version=6.1

osgi.arch=x86

JBoss Developer Studio (Branded Product)    8.0.0.GA-v20141020-1042-B317    com.jboss.devstudio.core.package

I had other JVMs to choose during installation (such as 1.7.0.45), but i eventually chose the default jre because setup said that other JVMs were not able to handle some JSF visual editor (or similar, and since i intend to use JSF further on, i opted for the default one).

What could be the problem? If you need other technical details to help me please ask and i'll search for them ASAP. I'm stuck right now.
Thanks a lot.

[snjeza]

Can you use JDK instead of JRE?

Open studio/jbdevstudio.ini and add or replace the following:

-vm

C:\Program Files (x86)\Java\jre7\bin\javaw.exe

with

-vm

C:\Program Files (x86)\Java\jdk1.7.0_67\bin\javaw.exe

Check if C:\Program Files (x86)\Java\jdk1.7.0_67\bin\javaw.exe exists.

[maxandersen]

If you can provide the error or workspace log that would be great.

[franzcrack]

I have two JDKs, located in

C:\Program Files\Java\jdk1.7.0_45\bin

C:\Program Files\Java\jdk1.7.0_40\bin

(not "Program Files (x86)" - they are for x64).

i didnt choose them since, as i previously said, setup said they were incompatible with JSF visual editor.

is it expectable that JRE doesnt work correctly? which is the difference between the two jvms?

anyway i'm gonna use \jdk1.7.0_45 and post soon the results here.

and, in reply to Max, here is some extract from the workspace logfile (impossible to report the whole file - it's 400+ Kb):

this is the part (i suppose) related to the null pointer exception just after a succesful startup:

!ENTRY org.eclipse.ui.workbench 4 2 2014-12-04 20:29:12.618

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".

!STACK 0

java.lang.NullPointerException

  at org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer.initialize(MavenClasspathContainerInitializer.java:48)

  at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:2902)

  at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:1937)

  at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:3247)

  at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2693)

  at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2857)

  at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1962)

  at org.eclipse.jdt.internal.core.JavaProject.getClasspathEntryFor(JavaProject.java:1441)

  at org.eclipse.jdt.internal.core.JavaModelManager.createJarPackageFragmentRootFrom(JavaModelManager.java:1003)

  at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManager.java:894)

  at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManager.java:855)

  at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:3126)

  at org.eclipse.jdt.internal.ui.ResourceAdapterFactory.getAdapter(ResourceAdapterFactory.java:44)

  at org.eclipse.core.internal.adapter.AdapterFactoryProxy.getAdapter(AdapterFactoryProxy.java:82)

  at org.eclipse.core.internal.runtime.AdapterManager.getAdapter(AdapterManager.java:295)

  at org.eclipse.core.runtime.PlatformObject.getAdapter(PlatformObject.java:66)

  at org.eclipse.jdt.internal.ui.EditorInputAdapterFactory.getAdapter(EditorInputAdapterFactory.java:53)

  at org.eclipse.core.internal.adapter.AdapterFactoryProxy.getAdapter(AdapterFactoryProxy.java:82)

  at org.eclipse.core.internal.runtime.AdapterManager.getAdapter(AdapterManager.java:295)

  at org.eclipse.core.runtime.PlatformObject.getAdapter(PlatformObject.java:66)

  at org.eclipse.ui.part.FileEditorInput.getAdapter(FileEditorInput.java:263)

  at org.eclipse.jdt.ui.JavaUI.getEditorInputJavaElement(JavaUI.java:759)

  at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.getInputFromEditor(PackageExplorerPart.java:1027)

  at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.editorActivated(PackageExplorerPart.java:1017)

  at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$1.partActivated(PackageExplorerPart.java:216)

  at org.eclipse.ui.internal.WorkbenchPage$17.run(WorkbenchPage.java:4870)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.ui.internal.WorkbenchPage.firePartActivated(WorkbenchPage.java:4867)

  at org.eclipse.ui.internal.WorkbenchPage.access$18(WorkbenchPage.java:4846)

  at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:210)

  at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$3.run(PartServiceImpl.java:236)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:233)

  at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:684)

  at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.switchPerspective(PartServiceImpl.java:574)

  at org.eclipse.e4.ui.workbench.renderers.swt.PerspectiveStackRenderer.showTab(PerspectiveStackRenderer.java:127)

  at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer.postProcess(LazyStackRenderer.java:100)

  at org.eclipse.e4.ui.workbench.renderers.swt.PerspectiveStackRenderer.postProcess(PerspectiveStackRenderer.java:77)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:678)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:766)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:737)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:731)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:715)

  at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:68)

  at org.eclipse.e4.ui.workbench.renderers.swt.SashRenderer.processContents(SashRenderer.java:185)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:674)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:766)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:737)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:731)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:715)

  at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:68)

  at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer.processContents(WBWRenderer.java:664)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:674)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:766)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:737)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:731)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:715)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1078)

  at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)

  at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)

  at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)

  at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

  at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)

  at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)

  at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)

  at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)

  at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)

  at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)

  at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)

  at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)

  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:648)

  at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)

  at org.eclipse.equinox.launcher.Main.run(Main.java:1465)

  at org.eclipse.equinox.launcher.Main.main(Main.java:1438)

!ENTRY org.eclipse.egit.ui 2 0 2014-12-04 20:29:16.184

!MESSAGE Warning: The environment variable HOME is not set. The following directory will be used to store the Git

user global configuration and to define the default location to store repositories: 'C:\Users\Franz'. If this is

not correct please set the HOME environment variable and restart Eclipse. Otherwise Git for Windows and

EGit might behave differently since they see different configuration options.

This warning can be switched off on the Team > Git > Confirmations and Warnings preference page.

this should be related to an unsuccesful startup days ago:

!ENTRY org.eclipse.osgi 2 0 2014-12-01 00:31:54.957

!MESSAGE While loading class "org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer", thread "Thread[Worker-1,5,main]" timed out waiting (5001ms) for thread "Thread[org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor,1,main]" to finish starting bundle "org.eclipse.m2e.jdt_1.5.0.20140606-0033 [515]". To avoid deadlock, thread "Thread[Worker-1,5,main]" is proceeding but "org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer" may not be fully initialized.

!STACK 0

org.osgi.framework.BundleException: Unable to acquire the state change lock for the module: osgi.identity; osgi.identity="org.eclipse.m2e.jdt"; type="osgi.bundle"; version:Version="1.5.0.20140606-0033"; singleton:="true" [id=515] STARTED [STARTED]

  at org.eclipse.osgi.container.Module.lockStateChange(Module.java:329)

  at org.eclipse.osgi.container.Module.start(Module.java:389)

  at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)

  at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)

  at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)

  at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)

  at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:395)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)

  at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)

  at java.lang.ClassLoader.loadClass(Unknown Source)

  at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)

  at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)

  at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)

  at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)

  at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)

  at org.eclipse.jdt.core.JavaCore.computeClasspathContainerInitializer(JavaCore.java:3294)

  at org.eclipse.jdt.core.JavaCore.getClasspathContainerInitializer(JavaCore.java:3270)

  at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:2883)

  at org.eclipse.jdt.internal.core.JavaModelManager$9.run(JavaModelManager.java:2808)

  at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)

  at org.eclipse.jdt.internal.core.JavaModelManager.initializeAllContainers(JavaModelManager.java:2848)

  at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:1932)

  at org.eclipse.jdt.core.JavaCore.initializeAfterLoad(JavaCore.java:4016)

  at org.eclipse.jdt.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:36)

  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.osgi 2 0 2014-12-01 00:31:56.000

!MESSAGE While loading class "org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer", thread "Thread[Worker-0,5,main]" timed out waiting (5001ms) for thread "Thread[org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor,1,main]" to finish starting bundle "org.eclipse.m2e.jdt_1.5.0.20140606-0033 [515]". To avoid deadlock, thread "Thread[Worker-0,5,main]" is proceeding but "org.eclipse.m2e.jdt.internal.MavenClasspathContainerInitializer" may not be fully initialized.

!STACK 0

org.osgi.framework.BundleException: Unable to acquire the state change lock for the module: osgi.identity; osgi.identity="org.eclipse.m2e.jdt"; type="osgi.bundle"; version:Version="1.5.0.20140606-0033"; singleton:="true" [id=515] STARTED [STARTED]

  at org.eclipse.osgi.container.Module.lockStateChange(Module.java:329)

  at org.eclipse.osgi.container.Module.start(Module.java:389)

  at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:454)

  at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:107)

  at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:531)

  at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)

  at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:395)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)

  at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)

  at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)

  at java.lang.ClassLoader.loadClass(Unknown Source)

  at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:568)

  at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)

  at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)

  at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)

  at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)

  at org.eclipse.jdt.core.JavaCore.computeClasspathContainerInitializer(JavaCore.java:3294)

  at org.eclipse.jdt.core.JavaCore.getClasspathContainerInitializer(JavaCore.java:3270)

  at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:2883)

  at org.eclipse.jdt.internal.core.JavaModelManager$9.run(JavaModelManager.java:2808)

  at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)

  at org.eclipse.jdt.internal.core.JavaModelManager.initializeAllContainers(JavaModelManager.java:2848)

  at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:1932)

  at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:3247)

  at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2693)

  at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2857)

  at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1995)

  at org.eclipse.jst.j2ee.classpathdep.ClasspathDependencyUtil.getComponentClasspathDependencies(ClasspathDependencyUtil.java:356)

  at org.eclipse.jst.j2ee.classpathdep.ClasspathDependencyUtil.getComponentClasspathDependencies(ClasspathDependencyUtil.java:276)

  at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getJavaClasspathReferences(J2EEModuleVirtualComponent.java:272)

  at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getNonManifestRefs(J2EEModuleVirtualComponent.java:242)

  at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:166)

  at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:214)

  at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:207)

  at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.hasConsumableReferences(SingleRootUtil.java:217)

  at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.validateSingleRoot(SingleRootUtil.java:165)

  at org.eclipse.jst.common.internal.modulecore.SingleRootUtil.isSingleRoot(SingleRootUtil.java:93)

  at org.eclipse.jst.common.internal.modulecore.SingleRootExportParticipant.canOptimize(SingleRootExportParticipant.java:88)

  at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.canOptimize(FlatVirtualComponent.java:203)

  at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.cacheResources(FlatVirtualComponent.java:185)

  at org.eclipse.wst.common.componentcore.internal.flat.FlatVirtualComponent.getChildModules(FlatVirtualComponent.java:160)

  at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.getExportModelChildren(FlatComponentDeployable.java:252)

  at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.getModules(FlatComponentDeployable.java:263)

  at org.eclipse.wst.web.internal.deployables.FlatComponentDeployable.getChildModules(FlatComponentDeployable.java:247)

  at org.jboss.ide.eclipse.as.wtp.core.util.ServerModelUtilities.getChildModules(ServerModelUtilities.java:116)

  at org.jboss.ide.eclipse.as.wtp.core.util.ServerModelUtilities.getChildModules(ServerModelUtilities.java:109)

  at org.jboss.ide.eclipse.as.core.server.internal.DeployableServer.getChildModules(DeployableServer.java:96)

  at org.eclipse.wst.server.core.internal.Server.getChildModules(Server.java:2622)

  at org.eclipse.wst.server.core.internal.Server.visitModule(Server.java:3043)

  at org.eclipse.wst.server.core.internal.Server.visit(Server.java:3024)

  at org.eclipse.wst.server.core.internal.Server.isPublishUnknown(Server.java:1256)

  at org.eclipse.wst.server.ui.internal.cnf.ServerDecorator.getServerStatusLabel(ServerDecorator.java:140)

  at org.eclipse.wst.server.ui.internal.cnf.ServerDecorator.decorate(ServerDecorator.java:73)

  at org.eclipse.ui.internal.decorators.LightweightDecoratorDefinition.decorate(LightweightDecoratorDefinition.java:273)

  at org.eclipse.ui.internal.decorators.LightweightDecoratorManager$LightweightRunnable.run(LightweightDecoratorManager.java:83)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.decorate(LightweightDecoratorManager.java:367)

  at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.getDecorations(LightweightDecoratorManager.java:349)

  at org.eclipse.ui.internal.decorators.DecorationScheduler$1.ensureResultCached(DecorationScheduler.java:372)

  at org.eclipse.ui.internal.decorators.DecorationScheduler$1.run(DecorationScheduler.java:332)

  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

[maxandersen]

The difference between them is probably that your JRE is 32-bit and JDK's are 64-bit.

If you download 32-bit JDK the visual editor for JSF will work.

Please note all other things related to JSF will work with 64-bit (like content assist, deployment etc.) its just the visual editor that are dependent on 32-bit VM.

[gvaiyapuri]

In jbdevstudio.ini, I changed -Xmx1024m to -Xmx512m which fixed the crash issue for me. 

[dgolovin]

I wonder why reducing maximum heap size worked for you. What are your OS/Arch, Java version, RAM size?

[gvaiyapuri]

Windows 7, 32 bit, java version "1.7.0_75" and RAM is 4 GB

[maxandersen]

okey - so your issue is that Java on Windows 32 bit requires one big consecutive memory chunk for the mx allocation. So you probably have the 1 GB free but not in one chunk.

the work around on reducing the memory is the best workaround for that.

[dgolovin]

Problem is there are no OutOfMemoryExceptions reported, so log doesn't look like memory allocation related problem. Would be interesting to see if it works OOTB with Java 8, because it has different memory allocation model.