Fix Exception occuring by click at TrackWidget

[Fabian Rohn]

The exeption occurs only sometimes.

00:55:03,078 ERROR unknown:42 - Event handler missing for control NONE in TrackWidget.handleInnerControlClick()
java.lang.RuntimeException: Event handler missing for control NONE in TrackWidget.handleInnerControlClick()
	at de.jacavi.rcp.widgets.TrackWidget.handleInnerControlClick(TrackWidget.java:555)
	at de.jacavi.rcp.widgets.TrackWidget.handleMouseDown(TrackWidget.java:486)
	at de.jacavi.rcp.widgets.TrackWidget$1.mouseDown(TrackWidget.java:337)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:178)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1002)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3782)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3381)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2394)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2358)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2210)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:494)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:489)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at de.jacavi.rcp.Application.start(Application.java:25)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
	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:379)
	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:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1212)

[Henrik Heimbuerger]

This is most likely a race condition issue that won't appear anymore when the animation is triggered by the RaceEngine.

I'll leave it open for now, but I can't reproduce it. If it's something else, we need to figure out when it occurs.

[SVN]

New commit by hheimbuerger (revision [363]):
[Fix for ticket #75] Replaced exception with a logged warning.

Instead of raising an exception, a warning is now logged. I'm still not sure when or how this occurs, but at least it shouldn't have any negative consequences now. (Worse case would be that a control click on the TrackWidget is discarded.)