Description Tomasz Borek 2011-05-31 01:02:22 EDT

Hi,

Wanted to get help with one bug I came across, that manifest itself when I work with JS files in Java EE perspective. Even basic operations (moving down or up through file, highlighting, copying code, etc.) quickly throw off internal error or unhandled loop exception. 

Noteworthy: 
1) doesn't happen if I use JSEclipse for JS files, but if I forgot to switch perspectives, boy, I'm in trouble quick. 
2) I extended heap space to 512. This 'only' prolongs time when Eclipse works furiously in the background just before crash.
3) See MAT, below.

> What steps will reproduce the problem?
Tricky one, as it did not occur immediately. I used to work with both JSEclipse and Java EE perspectives 'handling' JS files, and it was OK. My colleagues warned me against Java EE perspective, yet warnings sounded hollowe since nothing happened. They were surprised. Still, after three weeks with daily work being done in Eclipse, Java EE stopped being able to handle JS files. It's now often enough to open JavaScript file while in this perspective, to get sluggish responses, basic operations are delayed (even several seconds!) and crash happens sooner than later.

> MAT
I installed MAT (Memory Analyzer Tool) and *will attach it's report later*. It detected no leaking plug-ins installed, and found this (note, my code wasn't even working at the time, it's just Eclipse):

Used heap dump 500,4 MB 
Number of objects 11 109 831 
Number of classes 20 373 
Number of class loaders 292 
Number of GC roots 2 376 
Format hprof 
JVM version  
Time 17:51:04 CEST 
Date 30-05-2011 
Identifier size 32-bit 
File path C:\Program Files\eclipse-jee-helios-SR1-win32\eclipse\java_pid2872.hprof 
File length 601 720 328 


Classes 
1) org.eclipse.wst.jsdt.internal.ui.javaeditor.ASTProvider @ 0x11359b78 
2) org.eclipse.jface.text.TextViewerHoverManager$4 @ 0x1b7a32f8 Text Viewer Hover Presenter Thread 

took respectively 245,8 and 147,8 MBs of heap. These are primary suspects for leaks.

I will also *attach Eclipse error log later today*.

-- Error Details --
Date: Mon May 30 16:28:45 CEST 2011
Message: Internal Error
Severity: Error
Product: Eclipse 1.3.2.20110218-0812 (org.eclipse.epp.package.jee.product)
Plugin: org.eclipse.wst.jsdt.ui
Session Data:
eclipse.buildId=M20110210-1200
java.version=1.6.0_22
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=pl_PL
Framework arguments:  -showlocation -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os win32 -ws win32 -arch x86 -showlocation -product org.eclipse.epp.package.jee.product


Exception Stack Trace:
java.lang.reflect.InvocationTargetException
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275)
at org.eclipse.ui.internal.progress.ProgressManager$5.run(ProgressManager.java:960)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:995)
at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:970)
at org.eclipse.wst.jsdt.internal.ui.actions.SelectionConverter.performForkedCodeResolve(SelectionConverter.java:204)
at org.eclipse.wst.jsdt.internal.ui.actions.SelectionConverter.codeResolveForked(SelectionConverter.java:131)
at org.eclipse.wst.jsdt.ui.actions.OpenAction.run(OpenAction.java:130)
at org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:249)
at org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:221)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185)
at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1253)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1103)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1099)
at org.eclipse.swt.widgets.Widget.wmKeyDown(Widget.java:1808)
at org.eclipse.swt.widgets.Control.WM_KEYDOWN(Control.java:4498)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4193)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:369)
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:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
at org.eclipse.equinox.launcher.Main.main(Main.java:1384)
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2760)
at java.util.Arrays.copyOf(Arrays.java:2734)
at java.util.ArrayList.ensureCapacity(ArrayList.java:167)
at java.util.ArrayList.add(ArrayList.java:351)
at org.eclipse.wst.jsdt.core.infer.InferredType.addMethod(InferredType.java:261)
at org.eclipse.wst.jsdt.core.infer.InferredType.addMethod(InferredType.java:228)
at org.eclipse.wst.jsdt.core.infer.InferEngine.populateType(InferEngine.java:1302)
at org.eclipse.wst.jsdt.core.infer.InferEngine.createAnonymousType(InferEngine.java:668)
at org.eclipse.wst.jsdt.core.infer.InferEngine.visit(InferEngine.java:2070)
at org.eclipse.wst.jsdt.internal.compiler.DelegateASTVisitor.visit(DelegateASTVisitor.java:855)
at org.eclipse.wst.jsdt.internal.compiler.ast.ObjectLiteral.traverse(ObjectLiteral.java:66)
at org.eclipse.wst.jsdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:459)
at org.eclipse.wst.jsdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:174)
at org.eclipse.wst.jsdt.internal.compiler.ast.FunctionExpression.traverse(FunctionExpression.java:48)
at org.eclipse.wst.jsdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:455)
at org.eclipse.wst.jsdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:584)
at org.eclipse.wst.jsdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:539)
at org.eclipse.wst.jsdt.core.infer.InferEngine.doInfer(InferEngine.java:1745)
at org.eclipse.wst.jsdt.internal.compiler.parser.Parser.inferTypes(Parser.java:7093)
at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.doParse(SelectionEngine.java:1275)
at org.eclipse.wst.jsdt.internal.codeassist.impl.Engine.accept(Engine.java:84)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.addUnitsContainingBinding(LookupEnvironment.java:170)
at org.eclipse.wst.jsdt.internal.compiler.lookup.CompilationUnitScope.buildTypeBindings(CompilationUnitScope.java:342)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.buildTypeBindings(LookupEnvironment.java:244)
at org.eclipse.wst.jsdt.internal.codeassist.impl.Engine.accept(Engine.java:86)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.askForBinding(LookupEnvironment.java:205)
at org.eclipse.wst.jsdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:249)
at org.eclipse.wst.jsdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:2115)
at org.eclipse.wst.jsdt.internal.compiler.lookup.Scope.getType(Scope.java:1878)
at org.eclipse.wst.jsdt.core.infer.InferredType.resolveSuperType(InferredType.java:367)
at org.eclipse.wst.jsdt.internal.compiler.lookup.ClassScope.findInferredSupertype(ClassScope.java:726)
at org.eclipse.wst.jsdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:483)
Root exception:
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2760)
at java.util.Arrays.copyOf(Arrays.java:2734)
at java.util.ArrayList.ensureCapacity(ArrayList.java:167)
at java.util.ArrayList.add(ArrayList.java:351)
at org.eclipse.wst.jsdt.core.infer.InferredType.addMethod(InferredType.java:261)
at org.eclipse.wst.jsdt.core.infer.InferredType.addMethod(InferredType.java:228)
at org.eclipse.wst.jsdt.core.infer.InferEngine.populateType(InferEngine.java:1302)
at org.eclipse.wst.jsdt.core.infer.InferEngine.createAnonymousType(InferEngine.java:668)
at org.eclipse.wst.jsdt.core.infer.InferEngine.visit(InferEngine.java:2070)
at org.eclipse.wst.jsdt.internal.compiler.DelegateASTVisitor.visit(DelegateASTVisitor.java:855)
at org.eclipse.wst.jsdt.internal.compiler.ast.ObjectLiteral.traverse(ObjectLiteral.java:66)
at org.eclipse.wst.jsdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:459)
at org.eclipse.wst.jsdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:174)
at org.eclipse.wst.jsdt.internal.compiler.ast.FunctionExpression.traverse(FunctionExpression.java:48)
at org.eclipse.wst.jsdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:455)
at org.eclipse.wst.jsdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:584)
at org.eclipse.wst.jsdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:539)
at org.eclipse.wst.jsdt.core.infer.InferEngine.doInfer(InferEngine.java:1745)
at org.eclipse.wst.jsdt.internal.compiler.parser.Parser.inferTypes(Parser.java:7093)
at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.doParse(SelectionEngine.java:1275)
at org.eclipse.wst.jsdt.internal.codeassist.impl.Engine.accept(Engine.java:84)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.addUnitsContainingBinding(LookupEnvironment.java:170)
at org.eclipse.wst.jsdt.internal.compiler.lookup.CompilationUnitScope.buildTypeBindings(CompilationUnitScope.java:342)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.buildTypeBindings(LookupEnvironment.java:244)
at org.eclipse.wst.jsdt.internal.codeassist.impl.Engine.accept(Engine.java:86)
at org.eclipse.wst.jsdt.internal.compiler.lookup.LookupEnvironment.askForBinding(LookupEnvironment.java:205)
at org.eclipse.wst.jsdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:249)
at org.eclipse.wst.jsdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:2115)
at org.eclipse.wst.jsdt.internal.compiler.lookup.Scope.getType(Scope.java:1878)
at org.eclipse.wst.jsdt.core.infer.InferredType.resolveSuperType(InferredType.java:367)
at org.eclipse.wst.jsdt.internal.compiler.lookup.ClassScope.findInferredSupertype(ClassScope.java:726)
at org.eclipse.wst.jsdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:483)


PS. I can't get into Eclipsepedia to see keywords, so some of them might later change, once server will reply.