Bug 340341

Description Daniel U. Thibault 2011-03-17 12:03:24 EDT

Build Identifier: M20100909-0800

If you install just the latest liblttngtrace format and then try to import an older-format trace into an LTTng project, the application sort of crashes without any obvious feedback (no alert reporting the problem) and becomes unusable.

The host eclipse application captures the error:
Contributor org.eclipse.ui.navigator.ProjectExplorer cannot be created.
Plug-in org.eclipse.ui.navigator.resources was unable to instantiate class org.eclipse.ui.internal.navigator.resources.workbench.TabbedPropertySheetTitleProvider

Upon double-clicking the imported trace (yes, it did appear in the explorer, contrary to what should have happened), the host eclipse application's console captures:

org.eclipse.linuxtools.lttng.trace.LTTngTraceException: Failed to initialize library! Is the trace version supported?
Make sure you have the correct LTTv library compiled. (openTrace)
	at org.eclipse.linuxtools.lttng.trace.LTTngTrace.<init>(LTTngTrace.java:152)
	at org.eclipse.linuxtools.lttng.trace.LTTngTrace.<init>(LTTngTrace.java:125)
	at org.eclipse.linuxtools.lttng.ui.views.project.ProjectView.selectTrace(ProjectView.java:182)
	at org.eclipse.linuxtools.lttng.ui.views.project.ProjectView.access$2(ProjectView.java:173)
	at org.eclipse.linuxtools.lttng.ui.views.project.ProjectView$3.mouseDoubleClick(ProjectView.java:166)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:189)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3540)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	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:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
WARNING : Failed to initialize library handle from liblttvtraceread-2.5.so!

Obviously, the trace import should FAIL if the proper format library is not found, it should report this to the user through a dialog, and the trace should not appear in the project.  The exception should not escape.

Reproducible: Always

Steps to Reproduce:
1. Install just the latest liblttngtrace format (e.g. 2.6).
2. Launch org.eclipse.linuxtools.lttng.ui as an Eclipse application.
3. Create an LTTng project.
4. Import an older-format trace.