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Re: [aspectj-users] IllegalStateException: Can't answer binding questions prior to resolving ?
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Hi Andy,
I've tried to put together a simple example as test case for the bug,
but without success. And unfortunately I'm working on a quite big and
proprietary project. After many hours spent with my old friend
(debugger), I kinda figured out that the problem is related in some
way to the fact that I have classes like this
<snippet>
public class Entity<T extends Entity<T>> {
...
}
public class Contact extends Entity<Contact> {
...
}
public class EditableControl<T extends Entity<T>> extends Composite {
...
}
</snippet>
During the debug sessions I've noticed that the TypeVariable that
leads to the catastrophic error describes itself as "TypeVar T extends
com.distribute.core.Entity<java.lang.Object>" (but I think it should
be Entity<T>, or I'm mistaken?).
Does this help in some way?
Daniel
On Fri, Oct 2, 2009 at 5:54 PM, Andy Clement <andrew.clement@xxxxxxxxx> wrote:
> Hi Daniel,
>
> That is an AspectJ bug - please open it on bugzilla with as much info
> as you can (details of the generic declarations involved around the
> point of failure if possible) - and I'll take a look.
>
> Andy
>
> 2009/10/2 Daniel <daniel.rampanelli@xxxxxxxxx>:
>> Hi to everyone,
>>
>> I'm experiencing a VERY strange issue in my application. Basically it
>> is an RCP application enhanced with aspects (through Equinox aspects).
>>
>> At some point in development (since it happens during a huge
>> refactoring, I can't go back to the release version) some really
>> strange errors have started to appear.
>>
>> <log>
>> abort trouble in:
>> public abstract class
>> com.distribute.client.editor.impl.EditableEntitiesBindableControl
>> extends com.distribute.client.editor.impl.EntitiesBindableControl
>> implements com.distribute.client.editor.EditableControl:
>> private boolean _editable
>> private org.eclipse.swt.widgets.Table _table
>> private ca.odell.glazedlists.swt.EventTableViewer _tableViewer
>> [Signature(Lca/odell/glazedlists/swt/EventTableViewer<TT;>;)]
>> private org.eclipse.swt.widgets.Button _createButton
>> private org.eclipse.swt.widgets.Button _editButton
>> private org.eclipse.swt.widgets.Button _removeButton
>> public void <init>(org.eclipse.swt.widgets.Composite, int):
>> ALOAD_0 //
>> Lcom/distribute/client/editor/impl/EditableEntitiesBindableControl;
>> this (line 48)
>> ALOAD_1 // Lorg/eclipse/swt/widgets/Composite; parent
>> ILOAD_2 // I style
>> [... continues with the whole class byte-code definition ...]
>> -- (IllegalStateException) Can't answer binding questions prior to resolving
>> Can't answer binding questions prior to resolving
>> java.lang.IllegalStateException: Can't answer binding questions prior
>> to resolving
>> at org.aspectj.weaver.TypeVariable.canBeBoundTo(TypeVariable.java:184)
>> at org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:459)
>> at org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:363)
>> at org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:513)
>> at org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:363)
>> at org.aspectj.weaver.TypeVariable.isASubtypeOf(TypeVariable.java:212)
>> at org.aspectj.weaver.TypeVariable.canBeBoundTo(TypeVariable.java:193)
>> at org.aspectj.weaver.ReferenceType.isAssignableFrom(ReferenceType.java:459)
>> at org.aspectj.weaver.JoinPointSignatureIterator.accumulateTypesInBetween(JoinPointSignatureIterator.java:163)
>> at org.aspectj.weaver.JoinPointSignatureIterator.addSignaturesUpToFirstDefiningMember(JoinPointSignatureIterator.java:145)
>> at org.aspectj.weaver.JoinPointSignatureIterator.<init>(JoinPointSignatureIterator.java:51)
>> at org.aspectj.weaver.MemberImpl.getJoinPointSignatures(MemberImpl.java:541)
>> at org.aspectj.weaver.patterns.SignaturePattern.matches(SignaturePattern.java:290)
>> at org.aspectj.weaver.patterns.KindedPointcut.matchInternal(KindedPointcut.java:106)
>> at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:146)
>> at org.aspectj.weaver.patterns.AndPointcut.matchInternal(AndPointcut.java:52)
>> at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:146)
>> at org.aspectj.weaver.patterns.AndPointcut.matchInternal(AndPointcut.java:52)
>> at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:146)
>> at org.aspectj.weaver.ShadowMunger.match(ShadowMunger.java:79)
>> at org.aspectj.weaver.Advice.match(Advice.java:112)
>> at org.aspectj.weaver.bcel.BcelAdvice.match(BcelAdvice.java:145)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.match(BcelClassWeaver.java:3025)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.matchInvokeInstruction(BcelClassWeaver.java:2984)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.match(BcelClassWeaver.java:2706)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.match(BcelClassWeaver.java:2492)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.weave(BcelClassWeaver.java:480)
>> at org.aspectj.weaver.bcel.BcelClassWeaver.weave(BcelClassWeaver.java:103)
>> at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1735)
>> at org.aspectj.weaver.bcel.BcelWeaver.weaveWithoutDump(BcelWeaver.java:1696)
>> at org.aspectj.weaver.bcel.BcelWeaver.weaveAndNotify(BcelWeaver.java:1458)
>> at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1272)
>> at org.aspectj.weaver.tools.WeavingAdaptor.getWovenBytes(WeavingAdaptor.java:423)
>> at org.aspectj.weaver.tools.WeavingAdaptor.weaveClass(WeavingAdaptor.java:286)
>> at org.eclipse.equinox.weaving.aspectj.loadtime.OSGiWeavingAdaptor.weaveClass(OSGiWeavingAdaptor.java:121)
>> at org.eclipse.equinox.weaving.aspectj.WeavingService.preProcess(WeavingService.java:151)
>> at org.eclipse.equinox.weaving.adaptors.AspectJAdaptor.weaveClass(AspectJAdaptor.java:245)
>> at org.eclipse.equinox.weaving.hooks.AspectJHook.processClass(AspectJHook.java:126)
>> at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:571)
>> at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:546)
>> at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:477)
>> 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:376)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
>> at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
>> at java.lang.ClassLoader.defineClass1(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
>> 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:477)
>> 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:376)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:452)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
>> at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
>> at java.lang.Class.getDeclaredFields0(Native Method)
>> at java.lang.Class.privateGetDeclaredFields(Class.java:2259)
>> at java.lang.Class.getDeclaredFields(Class.java:1715)
>> at com.distribute.client.editor.EditorContext.bind(EditorContext.java:109)
>> at com.distribute.client.editor.EditorContext.bind(EditorContext.java:102)
>> at com.distribute.client.editor.EditorWindow.createContents(EditorWindow.java:110)
>> at org.eclipse.jface.window.Window.create(Window.java:431)
>> at org.eclipse.jface.window.Window.open(Window.java:790)
>> at com.distribute.client.editor.impl.customer.CustomerEditorAdapter.edit(CustomerEditorAdapter.java:21)
>> at com.distribute.client.editor.impl.customer.CustomerEditorAdapter.edit(CustomerEditorAdapter.java:1)
>> at com.distribute.client.views.browser.DAOTable$4.widgetSelected(DAOTable.java:125)
>> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
>> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
>> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3542)
>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1247)
>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1270)
>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1255)
>> at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1076)
>> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3440)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3099)
>> 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 com.distribute.client.Application.start(Application.java:24)
>> 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:592)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
>> </log>
>>
>> I've absolutely no clue what is going on and the most strange part is,
>> that the application was working before. The only thing that I have
>> figured out, is that these errors happen when some specific classes
>> are loaded/used/referenced.
>>
>> Thank you in advance,
>> Daniel
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>>
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