Nullpointer when renaming inner class java variables - JSFRenameFieldParticipant -------------------------------------------------------------------------------- Key: JBIDE-26548 URL: https://issues.redhat.com/browse/JBIDE-26548 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsf Affects Versions: 4.10.0.AM1 Environment: Linux with Eclipse 2018-12 Reporter: Thomas Zauner Assignee: Jeff MAURY Priority: Major Fix For: 4.17.0.AM1 Renaming of inner class java variables leads to an Nullpointer in JSFRenameFieldParticipant. The second rename is working, since the JSFRenameFieldParticipant is removed due to the exception. {noformat} !ENTRY org.eclipse.ltk.core.refactoring 4 10009 2019-02-07 08:02:57.183 !MESSAGE Participant 'org.jboss.tools.jsf.model.handlers.bean.JSFRenameFieldParticipant' removed due to the following exception !STACK 0 java.lang.NullPointerException at org.jboss.tools.jsf.model.pv.JSFProjectsTree.getProjectsRoot(JSFProjectsTree.java:45) at org.jboss.tools.jsf.model.handlers.bean.JSFRenameFieldHelper.getBeanList(JSFRenameFieldHelper.java:48) at org.jboss.tools.jsf.model.handlers.bean.JSFRenameFieldParticipant.createChange(JSFRenameFieldParticipant.java:68) at org.eclipse.ltk.core.refactoring.participants.ProcessorBasedRefactoring.createChange(ProcessorBasedRefactoring.java:309) at org.eclipse.jdt.internal.ui.refactoring.RefactoringExecutionHelper$Operation.run(RefactoringExecutionHelper.java:102) at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:41) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2295) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2322) at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5810) at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:108) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122) {noformat} {code:java} public class JavaClass { private boolean first; // rename will work public class InnerClass { private boolean second; // rename leads to NPE } } {code}