java.lang.StringIndexOutOfBoundsException: String index out of range: -1
   at java.lang.String.substring(String.java:1919)
   at org.netbeans.modules.mercurial.util.HgUtils.getRelativePath(HgUtils.java:1173)
   at org.netbeans.modules.mercurial.ui.status.SyncFileNode$PathProperty.<init>(SyncFileNode.java:216)
   at org.netbeans.modules.mercurial.ui.status.SyncFileNode.initProperties(SyncFileNode.java:155)
   at org.netbeans.modules.mercurial.ui.status.SyncFileNode.<init>(SyncFileNode.java:98)
   at org.netbeans.modules.mercurial.ui.status.SyncFileNode.<init>(SyncFileNode.java:89)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel.getNodes(VersioningPanel.java:340)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel.setupModels(VersioningPanel.java:256)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel.access$800(VersioningPanel.java:88)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel$4.perform(VersioningPanel.java:412)
   at org.netbeans.modules.mercurial.HgProgressSupport.performIntern(HgProgressSupport.java:148)
   at org.netbeans.modules.mercurial.HgProgressSupport.run(HgProgressSupport.java:141)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:420)
   at org.netbeans.modules.mercurial.HgProgressSupport.start(HgProgressSupport.java:111)
   at org.netbeans.modules.mercurial.HgProgressSupport.start(HgProgressSupport.java:103)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel.refreshStatuses(VersioningPanel.java:417)
   at org.netbeans.modules.mercurial.ui.status.VersioningPanel.performRefreshAction(VersioningPanel.java:395)
   at org.netbeans.modules.mercurial.ui.status.HgVersioningTopComponent.performRefreshAction(HgVersioningTopComponent.java:261)
   at org.netbeans.modules.mercurial.ui.status.StatusAction.performContextAction(StatusAction.java:98)
   at org.netbeans.modules.mercurial.ui.actions.ContextAction.performAction(ContextAction.java:101)
   at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:586)
   at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:95)
   at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:116)
   at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99)
   at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:583)
   at org.netbeans.modules.versioning.util.SystemActionBridge.actionPerformed(SystemActionBridge.java:105)
   at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
   at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
   at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
   at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
   at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
   at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
   at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
   at java.awt.Component.processMouseEvent(Component.java:6525)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
   at java.awt.Component.processEvent(Component.java:6290)
   at java.awt.Container.processEvent(Container.java:2234)
   at java.awt.Component.dispatchEventImpl(Component.java:4881)
   at java.awt.Container.dispatchEventImpl(Container.java:2292)
   at java.awt.Component.dispatchEvent(Component.java:4703)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4898)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4533)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4462)
   at java.awt.Container.dispatchEventImpl(Container.java:2278)
   at java.awt.Window.dispatchEventImpl(Window.java:2750)
   at java.awt.Component.dispatchEvent(Component.java:4703)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:751)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:702)
   at java.awt.EventQueue$3.run(EventQueue.java:696)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:724)
   at java.awt.EventQueue$4.run(EventQueue.java:722)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:721)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)