java.lang.NullPointerException
   at org.netbeans.modules.properties.MultiBundleStructure.findEntries(MultiBundleStructure.java:154)
   at org.netbeans.modules.properties.MultiBundleStructure.updateEntries(MultiBundleStructure.java:170)
   at org.netbeans.modules.properties.PropertiesOpen$Environment.propertyChange(PropertiesOpen.java:667)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:215)
   at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
   at org.openide.loaders.DataObject.firePropertyChange(DataObject.java:1095)
   at org.openide.loaders.DataObject.delete(DataObject.java:779)
   at org.openide.loaders.DataNode.destroy(DataNode.java:312)
   at org.openide.nodes.FilterNode.destroy(FilterNode.java:608)
   at org.openide.nodes.FilterNode.destroy(FilterNode.java:608)
   at org.openide.nodes.FilterNode.destroy(FilterNode.java:608)
   at org.openide.nodes.FilterNode.destroy(FilterNode.java:608)
   at org.netbeans.modules.refactoring.spi.impl.SafeDeleteAction$2.run(SafeDeleteAction.java:179)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:127)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:519)
   at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:420)
   at org.netbeans.modules.refactoring.spi.impl.SafeDeleteAction.delete(SafeDeleteAction.java:174)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl$DeleteActionPerformer.actionPerformed(ExplorerActionsImpl.java:698)
   at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:93)
   at org.openide.util.actions.ActionInvoker$ActionRunnable.actionPerformed(ActionInvoker.java:162)
   at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:109)
   at org.netbeans.modules.openide.actions.ActionsBridgeImpl.invokeAction(ActionsBridgeImpl.java:60)
   at org.openide.util.actions.ActionInvoker$ActionRunnable.doRun(ActionInvoker.java:153)
   at org.openide.util.actions.ActionInvoker$2.run(ActionInvoker.java:110)
   at org.openide.util.RequestProcessor$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)