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[ BUILD # : 200509251800 ] [ JDK VERSION : 1.5.0_05 ] I haven't been able to reproduce it, but here's the stacktrace: [org.apache.tools.ant.module] *********** Exception occurred ************ at 4:28 PM on Sep 27, 2005 java.lang.NullPointerException at org.openide.nodes.Children$Keys.setKeys(Children.java:1971) at org.apache.tools.ant.module.nodes.AntProjectChildren.refreshKeys(AntProjectChildren.java:78) at org.apache.tools.ant.module.nodes.AntProjectChildren.stateChanged(AntProjectChildren.java:92) [catch] at org.apache.tools.ant.module.xml.AntProjectSupport$ChangeFirer.run(AntProjectSupport.java:384) at org.openide.util.Task.run(Task.java:207) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:469) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:870)
Probably a race condition. Assuming rare; code has not been changed in a long time and this is the first report I know of.
Hope this fixes it: committed Up-To-Date 1.9 ant/src/org/apache/tools/ant/module/nodes/AntProjectChildren.java
*** Issue 66192 has been marked as a duplicate of this issue. ***
*** Issue 68905 has been marked as a duplicate of this issue. ***