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Steps: - Download Eclipse 200405060200 - Follow these steps to update to "Cheetah": http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/jdt-core-home/r3.0/main.html#updates - Once the update is completed successfully, go to Window->Preferences - Select Java->Compile on the left pane - Select the "Compliance and Classfiles" tab - Change the "Compiler compliance level" to 1.5 - Press the OK button No error dialog shows up and the OK button stops responding. I tried the described steps on Mac OS X and Windows XP with the same behavior. The following can be found in the .log file (for Windows XP): !SESSION May 10, 2004 15:11:24.177 --------------------------------------------- java.version=1.4.2_02 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US !ENTRY org.eclipse.ui 4 4 May 10, 2004 15:11:24.177 !MESSAGE Unhandled event loop exception !ENTRY org.eclipse.ui 4 0 May 10, 2004 15:11:24.187 !MESSAGE java.lang.NullPointerException !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock.performOk(OptionsConfigurationBlock.java:392) at org.eclipse.jdt.internal.ui.preferences.CompilerPreferencePage.performOk(CompilerPreferencePage.java:74) at org.eclipse.jface.preference.PreferenceDialog.okPressed(PreferenceDialog.java:741) at org.eclipse.jface.preference.PreferenceDialog.buttonPressed(PreferenceDialog.java:198) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.buttonPressed(WorkbenchPreferenceDialog.java:75) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:491) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:89) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2594) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2272) at org.eclipse.jface.window.Window.runEventLoop(Window.java:668) at org.eclipse.jface.window.Window.open(Window.java:648) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:72) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:612) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:563) at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:482) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2594) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2272) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1353) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1324) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:243) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:140) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:90) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:283) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:242) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:119) 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:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:269) at org.eclipse.core.launcher.Main.run(Main.java:700) at org.eclipse.core.launcher.Main.main(Main.java:684)
Ines what we needed was a bug I could send to the JDT guys.
Martin, can you please investigate.
it seems that that the options received from jdt.core are missing some keys. philippe, could it be that the new options got lost? e.g. in a merge? (sorry, I couldn't try with the latest cheetah) added code to OptionsConfigurationBlock to be more stable in such cases moving to jdt.core
Likely an update issue. If you could see both plugins at once for instance.
Or could it be a consequence of our new project preference implementation ?
Actually, I take my previous comment back, since Cheetah04 (last drop posted) did not contain the preference change. Ines: did you restart an extra time in between updating with Cheetah and starting to use it ? It prompts to restart, but as indicated on Cheetah page, you must force one more exit/restart of Eclipse to ensure it is correctly installed; at least on all builds older than 20040513 where platform/update issues seem to be resolved in that area. Can you please double check in latest, and reopen if able to reproduce ?
It seems to work fine now (on I20040512). I was unaware I had to exit eclipse after it had just restarted. I will read instructions more carefully next time :) Thanks for the feedback.
