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BETA_JAVA7 class Test{ public static void main(String[] args) throws IOException { try (FileInputStream fis = null) { } } } right click on fis> refactor> Generalize declared type... Choose "InputStream", click Continue. You get the following exception: eclipse.buildId=I20110613-1736 java.version=1.6.0_17 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Command-line arguments: -os win32 -ws win32 -arch x86 -data C:\Documents and Settings\Administrator\Desktop\Eclipse builds\eclipse-SDK-3.7-win32\eclipse\java7verify Error Tue Jul 19 17:29:36 IST 2011 Internal Error java.lang.reflect.InvocationTargetException at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421) at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.run(RefactoringWizardDialog2.java:331) at org.eclipse.ltk.ui.refactoring.RefactoringWizard.internalPerformFinish(RefactoringWizard.java:605) at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.performFinish(UserInputWizardPage.java:153) at org.eclipse.jdt.internal.ui.refactoring.ChangeTypeWizard$ChangeTypeInputPage.performFinish(ChangeTypeWizard.java:351) at org.eclipse.ltk.ui.refactoring.RefactoringWizard.performFinish(RefactoringWizard.java:678) at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.okPressed(RefactoringWizardDialog2.java:455) at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:472) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:181) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:193) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:116) at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:38) at org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter.startChangeTypeRefactoring(RefactoringExecutionStarter.java:221) at org.eclipse.jdt.ui.actions.ChangeTypeAction.run(ChangeTypeAction.java:166) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:279) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.ui.actions.RetargetAction.runWithEvent(RetargetAction.java:230) at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:234) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 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:344) 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:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) Caused by: org.eclipse.core.runtime.AssertionFailedException: assertion failed: at org.eclipse.core.runtime.Assert.isTrue(Assert.java:110) at org.eclipse.core.runtime.Assert.isTrue(Assert.java:96) at org.eclipse.jdt.internal.corext.refactoring.structure.ChangeTypeRefactoring.getType(ChangeTypeRefactoring.java:700) at org.eclipse.jdt.internal.corext.refactoring.structure.ChangeTypeRefactoring.updateCu(ChangeTypeRefactoring.java:568) at org.eclipse.jdt.internal.corext.refactoring.structure.ChangeTypeRefactoring.addAllChangesFor(ChangeTypeRefactoring.java:546) at org.eclipse.jdt.internal.corext.refactoring.structure.ChangeTypeRefactoring.createChange(ChangeTypeRefactoring.java:520) at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:124) at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:209) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
(In reply to comment #0) > Caused by: org.eclipse.core.runtime.AssertionFailedException: assertion failed: This is the real exception. I will take a look.
Created attachment 200147 [details] fix + tests
Fixed in BETA_JAVA7.
Verified in I20110729-1200 and M20110729-1400. It no longer throws an exception but it still suggests 'Object' which results in compile errors if chosen. Filed bug 353725 to track this.
