ClassCastException: java.util.Collections$SingletonSet cannot be cast to java.util.List

[Vincent]

After I refreshed an Ant file in a project that doesn't use Bazaar I got the following exception:
java.lang.ClassCastException: java.util.Collections$SingletonSet cannot be cast to java.util.List
        at org.vcs.bazaar.eclipse.ui.team.RefreshExecutionListener.preExecute(RefreshExecutionListener.java:50)
        at org.eclipse.core.commands.Command.firePreExecute(Command.java:664)
        at org.eclipse.core.commands.Command.executeWithChecks(Command.java:454)
        at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
        at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:824)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:880)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:569)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:510)
        at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:125)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1467)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1175)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1200)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1185)
        at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1212)
        at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:706)
        at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:2837)
        at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:703)
        at org.eclipse.swt.widgets.Shell.gtk_key_press_event(Shell.java:1130)
        at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1570)
        at org.eclipse.swt.widgets.Control.windowProc(Control.java:4594)
        at org.eclipse.swt.widgets.Display.windowProc(Display.java:4191)
        at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method)
        at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:7603)
        at org.eclipse.swt.widgets.Display.eventProc(Display.java:1185)
        at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
        at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1860)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3110)
        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)

[xaav (xaav)]

Thank you for reporting this bug; we hope to fix it as soon as possible.

[Alexander Taler (alex-idereal)]

Verified, the fix is there in latest trunk version.