SEVERE: Cannot create a QualIdent for NewPurchaseOrderHandler
org.openide.ErrorManager$AnnException: msg
        at org.openide.ErrorManager$AnnException.findOrCreate(ErrorManager.java:861)
        at org.openide.ErrorManager$DelegatingErrorManager.annotate(ErrorManager.java:650)
        at org.openide.ErrorManager.annotate(ErrorManager.java:452)
        at org.netbeans.modules.xml.lib.GuiUtil.notifyException(GuiUtil.java:120)
        at org.netbeans.modules.xml.tools.generator.XMLGenerateAction.performAction(XMLGenerateAction.java:100)
        at org.openide.util.actions.NodeAction.performAction(NodeAction.java:289)
        at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:118)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:114)
        at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:277)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:334)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1051)
        at apple.laf.CUIAquaMenuItem.doClick(CUIAquaMenuItem.java:119)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1092)
        at java.awt.Component.processMouseEvent(Component.java:5602)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5367)
        at java.awt.Container.processEvent(Container.java:2010)
        at java.awt.Component.dispatchEventImpl(Component.java:4068)
        at java.awt.Container.dispatchEventImpl(Container.java:2068)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
        at java.awt.Container.dispatchEventImpl(Container.java:2054)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimeableEventQueue.dispatchEvent(TimeableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
msg
Caused: java.lang.IllegalArgumentException: Cannot create a QualIdent for NewPurchaseOrderHandler
        at org.netbeans.modules.xml.tools.java.generator.GenerationUtils.createQualIdent(GenerationUtils.java:476)
        at org.netbeans.modules.xml.tools.java.generator.GenerationUtils.addImplementsClause(GenerationUtils.java:448)
        at org.netbeans.modules.xml.tools.java.generator.SAXGeneratorSupport$3.run(SAXGeneratorSupport.java:800)
        at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:912)
        at org.netbeans.modules.xml.tools.java.generator.SAXGeneratorSupport.generateInterfaceImpl(SAXGeneratorSupport.java:897)
        at org.netbeans.modules.xml.tools.java.generator.SAXGeneratorSupport.access$2100(SAXGeneratorSupport.java:115)
        at org.netbeans.modules.xml.tools.java.generator.SAXGeneratorSupport$InterfaceImplGenerator.generate(SAXGeneratorSupport.java:2154)
        at org.netbeans.modules.xml.tools.java.generator.SAXGeneratorSupport.generate(SAXGeneratorSupport.java:337)
[catch] at org.netbeans.modules.xml.tools.generator.XMLGenerateAction.performAction(XMLGenerateAction.java:93)
        at org.openide.util.actions.NodeAction.performAction(NodeAction.java:289)
        at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:118)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:114)
        at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:277)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:334)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1051)
        at apple.laf.CUIAquaMenuItem.doClick(CUIAquaMenuItem.java:119)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1092)
        at java.awt.Component.processMouseEvent(Component.java:5602)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5367)
        at java.awt.Container.processEvent(Container.java:2010)
        at java.awt.Component.dispatchEventImpl(Component.java:4068)
        at java.awt.Container.dispatchEventImpl(Container.java:2068)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
        at java.awt.Container.dispatchEventImpl(Container.java:2054)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimeableEventQueue.dispatchEvent(TimeableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
ALL [null]: Action failed due to internal error!