Patch Set 1:

tried the following:

- modify a versioned file and save it
- "Compare with HEAD Revision"
- in Compare editor try Team commands
- "Commit" fails :

eclipse.buildId=I20110603-0909
java.version=1.6.0_26
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments:  -product org.eclipse.sdk.ide
Command-line arguments:  -product org.eclipse.sdk.ide -data /Users/d029788/Documents/workspace/egit/../runtime-EGit(Indigo) -dev file:/Users/d029788/Documents/workspace/egit/.metadata/.plugins/org.eclipse.pde.core/EGit/dev.properties -os macosx -ws cocoa -arch x86_64 -consoleLog

Error
Sun Aug 21 01:33:00 CEST 2011
Unhandled event loop exception

java.lang.ArrayIndexOutOfBoundsException: 0
	at org.eclipse.egit.ui.internal.actions.CommitActionHandler.execute(CommitActionHandler.java:32)
	at org.eclipse.egit.ui.internal.actions.RepositoryAction.run(RepositoryAction.java:86)
	at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
	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.Display.sendEvent(Display.java:4125)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1270)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3971)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3610)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	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:344)
	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:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

- "Add", "Show in Repositories View" have no effect
- "Show in History View" fails:

eclipse.buildId=I20110603-0909
java.version=1.6.0_26
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments:  -product org.eclipse.sdk.ide
Command-line arguments:  -product org.eclipse.sdk.ide -data /Users/d029788/Documents/workspace/egit/../runtime-EGit(Indigo) -dev file:/Users/d029788/Documents/workspace/egit/.metadata/.plugins/org.eclipse.pde.core/EGit/dev.properties -os macosx -ws cocoa -arch x86_64 -consoleLog

Error
Sun Aug 21 01:40:49 CEST 2011
Unhandled event loop exception

java.lang.NullPointerException
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.resolveHead(GitHistoryPage.java:1411)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.inputSet(GitHistoryPage.java:1041)
	at org.eclipse.team.ui.history.HistoryPage.setInput(HistoryPage.java:59)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setInput(GitHistoryPage.java:950)
	at org.eclipse.team.internal.ui.history.GenericHistoryView.showHistoryPageFor(GenericHistoryView.java:738)
	at org.eclipse.team.internal.ui.history.GenericHistoryView.showHistoryFor(GenericHistoryView.java:691)
	at org.eclipse.team.internal.ui.history.GenericHistoryView.showHistoryFor(GenericHistoryView.java:925)
	at org.eclipse.egit.ui.internal.actions.ShowHistoryActionHandler.execute(ShowHistoryActionHandler.java:51)
	at org.eclipse.egit.ui.internal.actions.RepositoryAction.run(RepositoryAction.java:86)
	at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
	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.Display.sendEvent(Display.java:4125)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1270)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3971)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3610)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	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:344)
	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:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)