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The problem occurs when remotely accessing an Ubuntu 12.04 LTS PC from another PC and the "clipboard transfers" option is enabled in the VNC. The only application to exhibit the problem seems to be Eclipse CDT, which fails on startup with a Java Heap out of memory error. If I disable the "clipboard transfers" VNC option then Eclipse CDT starts normally. Increasing the size of the Java Heap space settings in eclipse.ini has NO effect on this problem. The target machine has 6GB of memory, so it has plenty to play with. When I start the Eclipse-CDT IDE it immediately crashes with the following message: 'Project Explorer' has encountered a problem An internal error has occured Java heap space Here is the log... java.lang.OutOfMemoryError: Java heap space at org.eclipse.ui.part.ResourceTransfer.nativeToJava(ResourceTransfer.java:162) at org.eclipse.swt.dnd.Clipboard.getContents(Clipboard.java:323) at org.eclipse.swt.dnd.Clipboard.getContents(Clipboard.java:241) at org.eclipse.cdt.internal.ui.cview.PasteAction$1.run(PasteAction.java:174) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4330) at org.eclipse.cdt.internal.ui.cview.PasteAction.updateSelection(PasteAction.java:170) at org.eclipse.ui.actions.BaseSelectionListenerAction.selectionChangedBaseSelectionListenerAction.java:124) at org.eclipse.cdt.internal.ui.cview.RefactorActionGroup.updateActionBarsRefactorActionGroup.java:149) at org.eclipse.cdt.internal.ui.cview.MainActionGroup.updateActionBarsMainActionGroup.java:313) at org.eclipse.cdt.internal.ui.cview.CView.updateActionBars(CView.java:779) at org.eclipse.cdt.internal.ui.cview.CView.createPartControl(CView.java:554) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229) at org.eclipse.ui.internal.WorkbenchPartReference.getPartWorkbenchPartReference.java:595) at org.eclipse.ui.internal.Perspective.showView(Perspective.java:2245) at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1145) at org.eclipse.ui.internal.WorkbenchPage$20.run(WorkbenchPage.java:3921) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3918) at org.eclipse.ui.handlers.ShowViewHandler.openView(ShowViewHandler.java:162) at org.eclipse.ui.handlers.ShowViewHandler.execute(ShowViewHandler.java:76) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecksParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommandHandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommandSlaveHandlerService.java:241) at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelectionCommandContributionItem.java:829) at org.eclipse.ui.menus.CommandContributionItem.access$19CommandContributionItem.java:815) at org.eclipse.ui.menus.CommandContributionItem$5.handleEventCommandContributionItem.java:805) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) Here is the session data... eclipse.buildId=I20110613-1736 java.version=1.7.0_03 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_GB Command-line arguments: -os linux -ws gtk -arch x86 I have tried increasing the Java Heap space, but this did not help. I even tried a upgrading the Java version to 1.7, but there was no improvement. Here is the contents of my /etc/eclipse.ini file -startup plugins/org.eclipse.equinox.launcher_1.2.0.dist.jar --launcher.library plugins/org.eclipse.equinox.launcher.gtk.linux.x86_1.1.100.dist -showsplash org.eclipse.platform --launcher.XXMaxPermSize 512m --launcher.defaultAction openFile -vmargs -Xms512m -Xmx1024m -XX:MaxPermSize=512M -Dorg.eclipse.equinox.p2.reconciler.dropins.directory=/usr/share/eclipse/dropins -XX:-UseCompressedOops NB: I also see the following error in the logs... String index out of range: -7 java.lang.StringIndexOutOfBoundsException: String index out of range: -7 at java.lang.String.substring(String.java:1949) at java.lang.String.substring(String.java:1916) at org.eclipse.cdt.managedbuilder.internal.core.AdditionalInput$1LibFilter.acceptAdditionalInput.java:488) at org.eclipse.cdt.managedbuilder.internal.core.AdditionalInput.findLibraryAdditionalInput.java:522) at org.eclipse.cdt.managedbuilder.internal.core.AdditionalInput.getDepLibsAdditionalInput.java:457) at org.eclipse.cdt.managedbuilder.internal.core.AdditionalInput.dependencyChangedAdditionalInput.java:405) at org.eclipse.cdt.managedbuilder.internal.core.AdditionalInput.needsRebuildAdditionalInput.java:343) at org.eclipse.cdt.managedbuilder.internal.core.InputType.needsRebuildInputType.java:1619) at org.eclipse.cdt.managedbuilder.internal.core.Tool.needsRebuild(Tool.java:3307) at org.eclipse.cdt.managedbuilder.internal.core.ToolChain.needsRebuildToolChain.java:2068) at org.eclipse.cdt.managedbuilder.internal.core.ToolChain.saveRebuildStateToolChain.java:2101) at org.eclipse.cdt.managedbuilder.internal.core.ToolChain.serialize(ToolChain.java:872) at org.eclipse.cdt.managedbuilder.internal.core.FolderInfo.serialize(FolderInfo.java:385) at org.eclipse.cdt.managedbuilder.internal.core.Configuration.serializeConfiguration.java:953) at org.eclipse.cdt.managedbuilder.internal.dataprovider.ConfigurationDataProvider.writeConfigurationConfigurationDataProvider.java:124) at org.eclipse.cdt.managedbuilder.internal.dataprovider.ConfigurationDataProvider.applyConfigurationConfigurationDataProvider.java:162) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.applyDataCProjectDescriptionManager.java:1124) at org.eclipse.cdt.internal.core.settings.model.CConfigurationDescriptionCache.applyDataCConfigurationDescriptionCache.java:137) at org.eclipse.cdt.internal.core.settings.model.CProjectDescription.applyDatasCProjectDescription.java:218) at org.eclipse.cdt.internal.core.settings.model.SetCProjectDescriptionOperation.executeOperationSetCProjectDescriptionOperation.java:97) at org.eclipse.cdt.internal.core.model.CModelOperation.execute(CModelOperation.java:339) at org.eclipse.cdt.internal.core.model.CModelOperation.run(CModelOperation.java:602) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) at org.eclipse.cdt.internal.core.model.CModelOperation.runOperationCModelOperation.java:633) at org.eclipse.cdt.internal.core.settings.model.AbstractCProjectDescriptionStorage.setProjectDescriptionAbstractCProjectDescriptionStorage.java:203) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionStorageManager.setProjectDescriptionCProjectDescriptionStorageManager.java:149) at rg.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.setProjectDescriptionCProjectDescriptionManager.java:836) at org.eclipse.cdt.managedbuilder.internal.core.BuildSettingsUtil.checkApplyDescriptionBuildSettingsUtil.java:211) at org.eclipse.cdt.managedbuilder.core.ManagedBuildManager.updateCoreSettingsManagedBuildManager.java:1561) at org.eclipse.cdt.build.internal.core.scannerconfig.CfgDiscoveredPathManager$1.runCfgDiscoveredPathManager.java:152) at org.eclipse.cdt.internal.core.model.BatchOperation.executeOperationBatchOperation.java:36) at org.eclipse.cdt.internal.core.model.CModelOperation.execute(CModelOperation.java:339) at org.eclipse.cdt.internal.core.model.CModelOperation.run(CModelOperation.java:602) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) at org.eclipse.cdt.core.model.CoreModel.run(CoreModel.java:1233) at org.eclipse.cdt.core.model.CoreModel.run(CoreModel.java:1190) at org.eclipse.cdt.build.internal.core.scannerconfig.CfgDiscoveredPathManager.updateCoreSettingsCfgDiscoveredPathManager.java:155) at org.eclipse.cdt.build.core.scannerconfig.ScannerConfigBuilder.buildScannerConfigBuilder.java:124) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374) at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143) at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
*** This bug has been marked as a duplicate of bug 205678 ***
