[NETBEANS-3621] NullPointerException in Java plugin

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 11.1, 11.2
• Fix Version/s: 11.3
• Component/s: java - Refactoring
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Mikhail
• Created: 21/Dec/19 07:59
• Updated: 03/Nov/20 15:44
• Resolved: 07/Feb/20 14:54

Description

I've just got exception when I was trying to find usages of a class constructor.

Product Version: Apache NetBeans IDE 11.1
Updates: NetBeans IDE is updated to version NetBeans 8.2 Patch 2
Java: 11.0.4; OpenJDK 64-Bit Server VM 11.0.4+11-post-Ubuntu-1ubuntu218.04.3
Runtime: OpenJDK Runtime Environment 11.0.4+11-post-Ubuntu-1ubuntu218.04.3
System: Linux version 5.0.0-37-generic running on amd64; UTF-8; en_US (nb)

java.lang.NullPointerException
at org.netbeans.modules.refactoring.java.plugins.FindUsagesVisitor.visitNewClass(FindUsagesVisitor.java:398)
at org.netbeans.modules.refactoring.java.plugins.FindUsagesVisitor.visitNewClass(FindUsagesVisitor.java:54)
at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1792)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at com.sun.source.util.TreeScanner.visitReturn(TreeScanner.java:496)
at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1635)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1044)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:910)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:818)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
at com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
at org.netbeans.modules.refactoring.java.plugins.FindUsagesVisitor.visitCompilationUnit(FindUsagesVisitor.java:139)
at org.netbeans.modules.refactoring.java.plugins.FindUsagesVisitor.visitCompilationUnit(FindUsagesVisitor.java:54)
at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:599)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
at org.netbeans.modules.refactoring.java.plugins.JavaWhereUsedQueryPlugin$FindTask.run(JavaWhereUsedQueryPlugin.java:611)
at org.netbeans.modules.refactoring.java.plugins.JavaWhereUsedQueryPlugin$FindTask.run(JavaWhereUsedQueryPlugin.java:548)
at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:502)
at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:166)
at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:138)
at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:83)
at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:452)
at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:423)
at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.processFiles(JavaRefactoringPlugin.java:319)
at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.processFiles(JavaRefactoringPlugin.java:263)
at org.netbeans.modules.refactoring.java.spi.JavaRefactoringPlugin.queryFiles(JavaRefactoringPlugin.java:253)
at org.netbeans.modules.refactoring.java.plugins.JavaWhereUsedQueryPlugin.prepare(JavaWhereUsedQueryPlugin.java:362)
[catch] at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare2(AbstractRefactoring.java:417)
at org.netbeans.modules.refactoring.api.AbstractRefactoring.pluginsPrepare(AbstractRefactoring.java:401)
at org.netbeans.modules.refactoring.api.AbstractRefactoring.prepare(AbstractRefactoring.java:212)
at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$Prepare$2.run(ParametersPanel.java:1059)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

Issue Links

• links to: GitHub Pull Request #1927