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Build: NetBeans IDE Dev (Build 201204040400) VM: Java HotSpot(TM) 64-Bit Server VM, 22.1-b02, Java(TM) SE Runtime Environment, 1.7.0_03-b05 OS: Windows 7 Stacktrace: java.lang.NullPointerException at org.netbeans.modules.refactoring.java.plugins.ExtractSuperclassRefactoringPlugin.findUsedGenericTypes(ExtractSuperclassRefactoringPlugin.java:285) at org.netbeans.modules.refactoring.java.plugins.ExtractSuperclassRefactoringPlugin.access$100(ExtractSuperclassRefactoringPlugin.java:85) at org.netbeans.modules.refactoring.java.plugins.ExtractSuperclassRefactoringPlugin$CreateSuperclassElement.run(ExtractSuperclassRefactoringPlugin.java:437) at org.netbeans.modules.refactoring.java.plugins.ExtractSuperclassRefactoringPlugin$CreateSuperclassElement.run(ExtractSuperclassRefactoringPlugin.java:335) at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:670) at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:660)
Created attachment 117957 [details] stacktrace
please provide steps to reproduce
Deleted project, but the Extract superclass is still open. Clicked on repeat and got this exception
Still cannot reproduce.
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue. Thanks for your cooperation, NetBeans IDE 8.2 Release Boss