java.lang.NullPointerException
at com.jaspersoft.ireport.designer.resourcebundle.ResourceBundleTopComponent.resultChanged(ResourceBundleTopComponent.java:210)
at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:159)
at org.openide.explorer.DefaultEMLookup.updateLookups(DefaultEMLookup.java:131)
at org.openide.explorer.DefaultEMLookup.propertyChange(DefaultEMLookup.java:163)
at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:186)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:842)
at org.openide.util.Mutex.doEvent(Mutex.java:1335)
at org.openide.util.Mutex.readAccess(Mutex.java:345)
at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:839)
at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:260)
at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:273)
at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:361)
at org.openide.util.Mutex.readAccess(Mutex.java:362)
at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:388)
at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:155)
at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:752)
at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1320)
at org.openide.util.Mutex.postRequest(Mutex.java:1251)
at org.openide.util.Mutex.postReadRequest(Mutex.java:565)
at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1291)
at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1078)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170)
at javax.swing.JTree.setSelectionPath(JTree.java:1598)
at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2316)
at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3525)
at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3502)
at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3461)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
at java.awt.Component.processMouseEvent(Component.java:6131)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5899)
at java.awt.Container.processEvent(Container.java:2023)
at java.awt.Component.dispatchEventImpl(Component.java:4501)
at java.awt.Container.dispatchEventImpl(Container.java:2081)
at java.awt.Component.dispatchEvent(Component.java:4331)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3962)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
at java.awt.Container.dispatchEventImpl(Container.java:2067)
at java.awt.Window.dispatchEventImpl(Window.java:2458)
at java.awt.Component.dispatchEvent(Component.java:4331)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
大家看看这是什么原因?谢谢!!!