Description
When you have applied refactoring, row for it is still active and after applying it the second time you will get plugin crash with NullPointerException.
null java.lang.NullPointerException at org.jetbrains.research.groups.ml_methods.refactoring.logging.MoveMethodRefactoringFeatures.<init>(MoveMethodRefactoringFeatures.java:45) at org.jetbrains.research.groups.ml_methods.refactoring.logging.RefactoringFeatures$1.visit(RefactoringFeatures.java:59) at org.jetbrains.research.groups.ml_methods.refactoring.logging.RefactoringFeatures$1.visit(RefactoringFeatures.java:56) at org.jetbrains.research.groups.ml_methods.algorithm.refactoring.MoveMethodRefactoring.accept(MoveMethodRefactoring.java:50) at org.jetbrains.research.groups.ml_methods.refactoring.logging.RefactoringFeatures.extractFeatures(RefactoringFeatures.java:56) at org.jetbrains.research.groups.ml_methods.refactoring.logging.RefactoringSessionInfo.lambda$new$0(RefactoringSessionInfo.java:39) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) at org.jetbrains.research.groups.ml_methods.refactoring.logging.RefactoringSessionInfo.<init>(RefactoringSessionInfo.java:40) at org.jetbrains.research.groups.ml_methods.ui.ClassRefactoringPanel.refactorSelected(ClassRefactoringPanel.java:177) at org.jetbrains.research.groups.ml_methods.ui.ClassRefactoringPanel.lambda$createButtonsPanel$5(ClassRefactoringPanel.java:154) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2238) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2296) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4897) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4534) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4475) at java.awt.Container.dispatchEventImpl(Container.java:2282) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90) at java.awt.EventQueue$4.run(EventQueue.java:733) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) at java.awt.EventQueue.dispatchEvent(EventQueue.java:730) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:827) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:651) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:365) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)