[forge-issues] [JBoss JIRA] (FORGE-1460) ClassCastException in CLAC

Vineet Reynolds (JIRA) issues at jboss.org
Fri Jan 17 09:32:33 EST 2014 

    [ https://issues.jboss.org/browse/FORGE-1460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12936630#comment-12936630 ] 

Vineet Reynolds commented on FORGE-1460:
----------------------------------------

When I perform this sequence:

* In Eclipse, Ctrl+5, choose New Project
* Fill a project name
* Choose Java Web application
* Press Finish

then I get the following error:

{noformat}
!ENTRY org.jboss.tools.forge.ui.ext 4 1 2014-01-17 08:39:45.060
!MESSAGE Error logged from Forge Plugin:
!STACK 0
java.lang.UnsupportedOperationException: getMessage() should not be called in a CompositeResult. Call getResults() instead.
        at org.jboss.forge.addon.ui.result.CompositeResult.getMessage(CompositeResult.java:35)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$1.call(ClassLoaderAdapterCallback.java:102)
        at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:34)
        at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:75)
        at org.jboss.forge.addon.ui.result.Result_$$_javassist_0be5729e-a8c1-4ecd-8080-fb2fdd8f76f6.getMessage(Result_$$_javassist_0be5729e-a8c1-4ecd-8080-fb2fdd8f76f6.java)
        at org.jboss.tools.forge.ui.ext.wizards.ForgeWizard$1.run(ForgeWizard.java:92)
        at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
        at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
        at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1028)
        at org.jboss.tools.forge.ui.ext.wizards.ForgeWizard.performFinish(ForgeWizard.java:71)
        at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
        at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
        at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:628)
        at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
        at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)
        at org.eclipse.jface.window.Window.open(Window.java:802)
        at org.jboss.tools.forge.ui.ext.dialog.WizardDialogHelper.openWizard(WizardDialogHelper.java:141)
        at org.jboss.tools.forge.ui.ext.dialog.UICommandListDialog$1$1.handleElementSelected(UICommandListDialog.java:161)
        at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents.handleSelection(QuickAccessContents.java:326)
        at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents.access$0(QuickAccessContents.java:316)
        at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents$6.mouseUp(QuickAccessContents.java:465)
        at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:220)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
        at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
        at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
        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:354)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
{noformat}

This seems related to the described CLAC issue, since on debugging I notice that, in ForgeWizard.java:84-89 (reproduced below)

{noformat}
if (commandResult instanceof CompositeResult) {
        results = ((CompositeResult) commandResult)
                        .getResults();
} else {
        results = Arrays.asList(commandResult);
}
{noformat}

the 'instanceof' test in the if condition fails even for a CompositeResult instance.
                
> ClassCastException in CLAC
> --------------------------
>
>                 Key: FORGE-1460
>                 URL: https://issues.jboss.org/browse/FORGE-1460
>             Project: Forge
>          Issue Type: Bug
>          Components: Furnace (Container), UI - Eclipse
>    Affects Versions: 2.0.0.CR1
>            Reporter: George Gastaldi
>            Priority: Blocker
>             Fix For: 2.0.0.CR2
>
>
> {code}
> java.lang.ClassCastException: org.jboss.forge.furnace.proxy.ClassLoaderInterceptor cannot be cast to org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.enhanceResult(ClassLoaderAdapterCallback.java:211)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.access$300(ClassLoaderAdapterCallback.java:34)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$1.call(ClassLoaderAdapterCallback.java:103)
> 	at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:34)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:75)
> 	at org.jboss.forge.addon.projects.AbstractProject_$$_javassist_2c7819c4-ccb6-4b46-9177-45522d4fb543.getFacet(AbstractProject_$$_javassist_2c7819c4-ccb6-4b46-9177-45522d4fb543.java)
> 	at org.jboss.forge.addon.parser.java.projects.JavaProjectTypeStep.execute(JavaProjectTypeStep.java:68)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderInterceptor$1.call(ClassLoaderInterceptor.java:59)
> 	at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:34)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderInterceptor.invoke(ClassLoaderInterceptor.java:75)
> 	at org.jboss.forge.addon.parser.java.projects.JavaProjectTypeStep_$$_javassist_4c40a231-0b10-4ee6-b88d-3a4b454d4ae5.execute(JavaProjectTypeStep_$$_javassist_4c40a231-0b10-4ee6-b88d-3a4b454d4ae5.java)
> 	at org.jboss.forge.addon.ui.impl.controller.WizardCommandControllerImpl.execute(WizardCommandControllerImpl.java:119)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback$1.call(ClassLoaderAdapterCallback.java:102)
> 	at org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:34)
> 	at org.jboss.forge.furnace.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:75)
> 	at org.jboss.forge.addon.ui.controller.CommandController_$$_javassist_d92b282e-d83a-4835-bfa1-a1e188c72713.execute(CommandController_$$_javassist_d92b282e-d83a-4835-bfa1-a1e188c72713.java)
> 	at org.jboss.tools.forge.ui.ext.wizards.ForgeWizard$1.run(ForgeWizard.java:81)
> 	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
> 	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
> 	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1028)
> 	at org.jboss.tools.forge.ui.ext.wizards.ForgeWizard.performFinish(ForgeWizard.java:71)
> 	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
> 	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
> 	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:628)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
> 	at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)
> 	at org.eclipse.jface.window.Window.open(Window.java:802)
> 	at org.jboss.tools.forge.ui.ext.dialog.WizardDialogHelper.openWizard(WizardDialogHelper.java:141)
> 	at org.jboss.tools.forge.ui.ext.dialog.UICommandListDialog$1$1.handleElementSelected(UICommandListDialog.java:161)
> 	at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents.handleSelection(QuickAccessContents.java:326)
> 	at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents.access$0(QuickAccessContents.java:316)
> 	at org.jboss.tools.forge.ui.ext.quickaccess.QuickAccessContents$6.mouseUp(QuickAccessContents.java:465)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:220)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> 	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
> 	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
> 	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
> 	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> 	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
> 	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:354)
> 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
> 	at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
> {code}

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