[ptp-dev] NoClassDefFoundError in profile configuration without TAU plug

[Dave Wootton <dwootton@xxxxxxxxxx>]

I get a NoClassDefFoundError exception
when I open the profile configuration dialog if I don't copy the TAU plugins
named in the copy_tau_jars_sh.script in the org.eclipse.ptp.perf.tau.jars
subdirectory in the plugins directory. I also get a 'Problem Occurred'
popup that appears about the same time as the profile configuration dialog
opens and which I can't close until I close the profile configuration dialog.
The profile configuration dialog seems to operate normally and I can close
the popup after completing the profile configuration dialog.

Is it worthwhile to have a runtime check
for the existience of the required TAU components and handle the absence
of them without an error?

I'm thinking users might be confused
by the appearance of the popup, which appears as the top level widget in
the Eclipse window and which they can't close until they close the profile
configuration dialog under it.

The exception follows

java.lang.NoClassDefFoundError: edu/uoregon/tau/perfdmf/DataSource
        at
org.eclipse.ptp.perf.tau.TAUAnalysisTab.performApply(TAUAnalysisTab.java:1335)
        at
org.eclipse.debug.ui.AbstractLaunchConfigurationTabGroup.performApply(AbstractLaunchConfigurationTabGroup.java:98)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupWrapper.performApply(LaunchConfigurationTabGroupWrapper.java:220)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationTabGroupViewer.handleApplyPressed(LaunchConfigurationTabGroupViewer.java:1352)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.handleLaunchConfigurationSelectionChanged(LaunchConfigurationsDialog.java:918)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog$3.selectionChanged(LaunchConfigurationsDialog.java:544)
        at
org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:864)
        at
org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
        at
org.eclipse.core.runtime.Platform.run(Platform.java:888)
        at
org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
        at
org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
        at
org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:862)
        at
org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1670)
        at
org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1124)
        at
org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:392)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.doInitialTreeSelection(LaunchConfigurationsDialog.java:584)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.initializeContent(LaunchConfigurationsDialog.java:1009)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.createContents(LaunchConfigurationsDialog.java:425)
        at
org.eclipse.jface.window.Window.create(Window.java:431)
        at
org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.create(LaunchConfigurationsDialog.java:354)
        at
org.eclipse.jface.window.Window.open(Window.java:790)
        at
org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.open(LaunchConfigurationsDialog.java:1064)
        at
org.eclipse.debug.ui.DebugUITools$1.run(DebugUITools.java:398)
        at
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at
org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:406)
        at
org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationDialogOnGroup(DebugUITools.java:340)
        at
org.eclipse.debug.ui.actions.OpenLaunchDialogAction.run(OpenLaunchDialogAction.java:81)
        at
org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
        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:1003)
        at
org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880)
        at
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
        at
org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
        at
org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
        at
org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
        at
org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
        at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
        at
org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
        at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
        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:368)
        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:559)
        at
org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
        at
org.eclipse.equinox.launcher.Main.run(Main.java:1311)
Caused by: java.lang.ClassNotFoundException:
edu.uoregon.tau.perfdmf.DataSource
        at
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:489)
        at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:405)
        at
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:393)
        at
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
        at
java.lang.ClassLoader.loadClass(Unknown Source)
        at
java.lang.ClassLoader.loadClassInternal(Unknown Source)
        ...
56 more
Dave