WindowBuilder internal error - Swing in Eclipse 3.5

[thavali]

I use Eclipse 3.5 with JDK 1.6 and Swing in WindowBuilder 7.2. When I drag and drop the "Button" in Swing component to the frame, then WindowBuilder puted a error following:

============================
WindowBuilder encountered unexpected internal error. Please contact support.

java.lang.SecurityException: class "org.eclipse.jdt.core.dom.AnonymousTypeDeclaration2"'s signer information does not match signer information of other classes in the same package

Stack trace:
java.lang.SecurityException: class "org.eclipse.jdt.core.dom.AnonymousTypeDeclaration2"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source)
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:183)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:576)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:546)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:486)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:465)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:445)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:381)
at org.eclipse.osgi.internal.loader.SingleSourcePackage.loadClass(SingleSourcePackage.java:33)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:454)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at com.instantiations.designer.core.utils.ast.ASTEditor$4.postVisit(ASTEditor.java:687)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2483)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2528)
at org.eclipse.jdt.core.dom.PackageDeclaration.accept0(PackageDeclaration.java:231)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2528)
at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:217)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480)
at com.instantiations.designer.core.utils.ast.ASTEditor.replaceSubstring(ASTEditor.java:696)
at com.instantiations.designer.core.utils.ast.ASTEditor.replaceExpressionString(ASTEditor.java:885)
at com.instantiations.designer.core.utils.ast.ASTEditor.replaceExpression(ASTEditor.java:838)
at com.instantiations.designer.swing.model.component.top.Swing_TopBoundsSupport.setSizeInts(Swing_TopBoundsSupport.java:187)
at com.instantiations.designer.swing.model.component.top.Swing_TopBoundsSupport.setSize(Swing_TopBoundsSupport.java:73)
at com.instantiations.designer.core.gef.policy.selection.TopSelectionEditPolicy$1.executeEdit(TopSelectionEditPolicy.java:94)
at com.instantiations.designer.core.gef.command.EditCommand$1.run(EditCommand.java:35)
at com.instantiations.designer.core.utils.execution.ExecutionUtils.run(ExecutionUtils.java:240)
at com.instantiations.designer.core.gef.command.EditCommand.execute(EditCommand.java:33)
at com.instantiations.gef.core.EditDomain.executeCommand(EditDomain.java:38)
at com.instantiations.gef.core.tools.Tool.executeCommand(Tool.java:184)
at com.instantiations.gef.graphical.tools.ResizeTracker.handleButtonUp(ResizeTracker.java:121)
at com.instantiations.gef.core.tools.Tool.mouseUp(Tool.java:352)
at com.instantiations.gef.graphical.tools.SelectionTool.mouseUp(SelectionTool.java:223)
at com.instantiations.gef.core.EditDomain.mouseUp(EditDomain.java:196)
at com.instantiations.gef.graphical.EditEventManager.mouseUp(EditEventManager.java:131)
at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.instantiations.draw2d.EventManager$8.invoke(EventManager.java:288)
at $Proxy1.mouseUp(Unknown Source)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
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(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:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

[Eric Clayberg]

java.lang.SecurityException: class "org.eclipse.jdt.core.dom.AnonymousTypeDeclaration2"'s signer information does not match signer information of other classes in the same package

While the above is certainly true (and even expected), it should not result in any exception or cause any problem in Eclipse.

Have you modified any security settings in Eclipse or in the JVM? Have you modified the default eclipse.ini file? What exact JVM are you using?

Please send us your "Installation Details > Configuration" from the Eclipse About dialog.

[thavali]

Thanks Eric Clayberg,

I modified eclipse.ini file as follow:
from "--launcher.XXMaxPermSize 512m" to "--launcher.XXMaxPermSize 256m"

this is full information of eclipse.ini file:

--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.0.200.v20090519
-startup
plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
-product
org.eclipse.epp.package.jee.product
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx400m

========================
my OS is XP sp3 32bit, RAM 512M. JDK 6 update 16. Eclipse EE 3.5

Thanks,
thavali

[Eric Clayberg]

Your configuration shows the following:

osgi.support.signature.verify=true

I am guessing that is the problem.

Try removing that line from $ECLIPSE_HOME\configuration\config.ini (assuming that is where it is). The default config for Eclipse does not set that flag.

[thavali]

thanks so much Eric Clayberg

after remove the line: "osgi.support.signature.verify=true"
then everything seem to be very nice.

Thanks,
thavali

[Eric Clayberg]

Glad that worked for you.