java.lang.NullPointerException
	at org.netbeans.modules.java.source.save.CasualDiff.isCommaSeparated(CasualDiff.java:2519)
	at org.netbeans.modules.java.source.save.CasualDiff.filterHidden(CasualDiff.java:1759)
	at org.netbeans.modules.java.source.save.CasualDiff.diffClassDef(CasualDiff.java:310)
	at org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:2101)
	at org.netbeans.modules.java.source.save.CasualDiff.diffListImports(CasualDiff.java:1864)
	at org.netbeans.modules.java.source.save.CasualDiff.diffTopLevel(CasualDiff.java:135)
	at org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:2095)
	at org.netbeans.modules.java.source.save.CasualDiff.diff(CasualDiff.java:87)
	at org.netbeans.modules.java.source.save.Commit.commit(Commit.java:194)
	at org.netbeans.modules.java.source.save.Commit.visitCompilationUnit(Commit.java:146)
Caused: QueryException
	at org.netbeans.modules.java.source.query.Query.error(Query.java:117)
	at org.netbeans.modules.java.source.save.Commit.visitCompilationUnit(Commit.java:154)
	at org.netbeans.modules.java.source.save.Commit.visitCompilationUnit(Commit.java:53)
	at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:476)
	at org.netbeans.modules.java.source.engine.RootTree.accept(RootTree.java:60)
	at org.netbeans.modules.java.source.query.Query.apply(Query.java:95)
	at org.netbeans.modules.java.source.save.Commit.commit(Commit.java:94)
	at org.netbeans.api.java.source.WorkingCopy.getChanges(WorkingCopy.java:201)
	at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:686)
	at org.netbeans.modules.websvc.core.jaxws.actions.JaxWsCodeGenerator.insertMethodCall(JaxWsCodeGenerator.java:567)
	at org.netbeans.modules.websvc.core.jaxws.actions.JaxWsInvokeOperation.invokeOperation(JaxWsInvokeOperation.java:33)
	at org.netbeans.modules.websvc.core.webservices.action.InvokeOperationAction.performAction(InvokeOperationAction.java:84)
	at org.openide.util.actions.NodeAction.performAction(NodeAction.java:267)
	at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:96)
	at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:55)
	at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:92)
	at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:255)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1216)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1257)
	at java.awt.Component.processMouseEvent(Component.java:6038)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
	at java.awt.Component.processEvent(Component.java:5803)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4410)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4240)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
	at java.awt.Container.dispatchEventImpl(Container.java:2102)
	at java.awt.Window.dispatchEventImpl(Window.java:2429)
	at java.awt.Component.dispatchEvent(Component.java:4240)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)