java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

Do you know how to solve this issue? Write a tip to help other users and build your expert profile.

Solutions on the web

via Oracle Community by 807587, 1 year ago
This exception has no message.
via Oracle Community by 843810, 1 year ago
This exception has no message.
via Google Groups by bobjan, 3 months ago
This exception has no message.
via Oracle Community by 843805, 8 months ago
This exception has no message.
via Google Groups by Uwe Clement, 2 months ago
via Oracle Community by 807587, 1 year ago
java.lang.NullPointerException:
at javax.swing.plaf.basic.BasicPopupMenuUI$MouseGrabber.grabContainer(BasicPopupMenuUI.java:383)
at javax.swing.plaf.basic.BasicPopupMenuUI$MouseGrabber.requestAddGrab(BasicPopupMenuUI.java:267)
at javax.swing.plaf.basic.BasicPopupMenuUI$MouseGrabber.stateChanged(BasicPopupMenuUI.java:323)
at javax.swing.MenuSelectionManager.fireStateChanged(MenuSelectionManager.java:161)
at javax.swing.MenuSelectionManager.setSelectedPath(MenuSelectionManager.java:87)
at javax.swing.JPopupMenu.setVisible(JPopupMenu.java:751)
at javax.swing.JPopupMenu.show(JPopupMenu.java:927)
at javax.swing.plaf.basic.BasicComboPopup.show(BasicComboPopup.java:177)
at javax.swing.plaf.basic.BasicComboBoxUI.setPopupVisible(BasicComboBoxUI.java:927)
at undefined.SimpleTableDemo$1.mouseClicked(SimpleTableDemo.java:59)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:212)
at java.awt.Component.processMouseEvent(Component.java:5103)
at java.awt.Component.processEvent(Component.java:4897)
at java.awt.Container.processEvent(Container.java:1569)
at java.awt.Component.dispatchEventImpl(Component.java:3615)
at java.awt.Container.dispatchEventImpl(Container.java:1627)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3207)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
at java.awt.Container.dispatchEventImpl(Container.java:1613)
at java.awt.Window.dispatchEventImpl(Window.java:1606)
at java.awt.Component.dispatchEvent(Component.java:3477)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.