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Steps to reproduce 1. Drag and drop a class from one package to another 2. Click on Refactor button 3. The preview window shows up (with a single entry saying Move class Class1 to package1 package [1 Occurrence] - NEEDS REFRESH java.lang.NullPointerException at org.netbeans.modules.refactoring.java.ui.tree.ElementGripFactory$Interval.creat eInterval(ElementGripFactory.java:119) at org.netbeans.modules.refactoring.java.ui.tree.ElementGripFactory.put (ElementGripFactory.java:75) at org.netbeans.modules.refactoring.java.api.JavaRefactoringUtils.cacheTreePathInf o(JavaRefactoringUtils.java:452) at org.netbeans.modules.refactoring.java.spi.RefactoringVisitor.rewrite (RefactoringVisitor.java:71) at org.netbeans.modules.refactoring.java.plugins.MoveTransformer.visitCompilationU nit(MoveTransformer.java:148) at org.netbeans.modules.refactoring.java.plugins.MoveTransformer.visitCompilationU nit(MoveTransformer.java:37) at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept (JCTree.java:476) at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:52) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin$TransformTask.r un(JavaRefactoringPlugin.java:250) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin$TransformTask.r un(JavaRefactoringPlugin.java:225) at org.netbeans.api.java.source.JavaSource.runModificationTask (JavaSource.java:747) at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.processFiles (JavaRefactoringPlugin.java:214) at org.netbeans.modules.refactoring.java.plugins.MoveRefactoringPlugin.prepare (MoveRefactoringPlugin.java:225) at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare (AbstractRefactoring.java:316) at org.netbeans.modules.refactoring.api.AbstractRefactoring.prepare (AbstractRefactoring.java:173) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare.run (ParametersPanel.java:708) at org.openide.util.RequestProcessor$Task.run (RequestProcessor.java:539) [catch] at org.openide.util.RequestProcessor$Processor.run (RequestProcessor.java:964)
Marking as duplicate of issue 105965, since it has higher priority *** This issue has been marked as a duplicate of 105965 ***
*** Issue 105958 has been marked as a duplicate of this issue. ***
*** Issue 105988 has been marked as a duplicate of this issue. ***