Jan Lahoda created NETBEANS-2220:
------------------------------------
Summary: NullPointerException on empty space when documents pop-up
has more than one column
Key: NETBEANS-2220
URL: https://issues.apache.org/jira/browse/NETBEANS-2220
Project: NetBeans
Issue Type: Bug
Affects Versions: 11.0
Reporter: Jan Lahoda
Assignee: Jan Lahoda
When the document popup (triangle at the right top of editor) has more than one
column, and some cell is empty in the pop-up, placing the mouse cursor over the
empty cell leads to:
---
java.lang.NullPointerException
at
org.netbeans.swing.tabcontrol.DocumentSwitcherTable.isClosable(DocumentSwitcherTable.java:174)
at
org.netbeans.swing.tabcontrol.DocumentSwitcherTable.onMouseEvent(DocumentSwitcherTable.java:88)
at
org.netbeans.swing.tabcontrol.ButtonPopupSwitcher.mouseMoved(ButtonPopupSwitcher.java:196)
at
java.desktop/java.awt.AWTEventMulticaster.mouseMoved(AWTEventMulticaster.java:338)
at
java.desktop/java.awt.AWTEventMulticaster.mouseMoved(AWTEventMulticaster.java:337)
at
java.desktop/java.awt.Component.processMouseMotionEvent(Component.java:6677)
at
java.desktop/javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3360)
at java.desktop/java.awt.Component.processEvent(Component.java:6401)
at java.desktop/java.awt.Container.processEvent(Container.java:2263)
at
java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5008)
at
java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
at java.desktop/java.awt.Component.dispatchEvent(Component.java:4840)
at
java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
at
java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4560)
at
java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
at
java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2762)
at java.desktop/java.awt.Component.dispatchEvent(Component.java:4840)
at
java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:389)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:389)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
at
org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
[catch] at
java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
---
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