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I changed my class path to updgrade from JUnit 3.7 to 3.8.1 and got the error below. I had been running e for a couple of days, while it was slow yesterday and used up about 119MB of RAM, today it is faster and is now using 111MB of RAM. My box has 512MB, the task manager shows 436MB used. I start e as follows: C:\eclipse-R2.0.1\eclipse.exe --vm c:\java\j2sdk1.4.0_01\bin\javaw.exe - data "C:\Documents and Settings\ggregory.PC1073\My Documents\eclipse\workspaces" vmargs -Xmx256m Now, I click OK again to apply my path settings, the output folder gets srubbed again and the world gets recompiled without errors. !ENTRY org.eclipse.jdt.ui 4 1 Sep 17, 2002 17:04:34.709 !MESSAGE Internal Error !STACK 0 java.lang.reflect.InvocationTargetException at org.eclipse.jface.operation.ModalContext.runInCurrentThread (ModalContext.java:312) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:249) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run (ProgressMonitorDialog.java:376) at org.eclipse.jdt.internal.ui.preferences.BuildPathsPropertyPage.performOk (BuildPathsPropertyPage.java:140) at org.eclipse.jface.preference.PreferenceDialog.okPressed (PreferenceDialog.java:577) at org.eclipse.jface.preference.PreferenceDialog.buttonPressed (PreferenceDialog.java:175) at org.eclipse.jface.dialogs.Dialog$1.widgetSelected(Dialog.java:398) at org.eclipse.swt.widgets.TypedListener.handleEvent (TypedListener.java:87) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:77) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:827) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1529) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1291) at org.eclipse.jface.window.Window.runEventLoop(Window.java:562) at org.eclipse.jface.window.Window.open(Window.java:542) at org.eclipse.ui.dialogs.PropertyDialogAction.run (PropertyDialogAction.java:159) at org.eclipse.jface.action.Action.runWithEvent(Action.java:749) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:407) at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent (ActionContributionItem.java:361) at org.eclipse.jface.action.ActionContributionItem.access$0 (ActionContributionItem.java:352) at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent (ActionContributionItem.java:47) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:77) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:827) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1529) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1291) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1256) at org.eclipse.ui.internal.Workbench.run(Workbench.java:1239) at org.eclipse.core.internal.boot.InternalBootLoader.run (InternalBootLoader.java:775) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:462) 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:247) at org.eclipse.core.launcher.Main.run(Main.java:703) at org.eclipse.core.launcher.Main.main(Main.java:539) Caused by: java.lang.OutOfMemoryError
In your command line, you should put -vmargs instead of vmargs. Then the heap size will really be bigger and you should not get an OutOfMemoryError anymore. Please add a note if this fixes your problem.
So far so good. Thank you.
Closing.
Closing
