[NETBEANS-3498] Cannot add unimplemented methods to anonymous innerclasses

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 11.2
• Fix Version/s: 11.3
• Component/s: java - Source
• Labels: pull-request-available
• Assignee: Jan Lahoda
• Reporter: Jan Lahoda
• Created: 29/Nov/19 22:34
• Updated: 03/Nov/20 15:48
• Resolved: 09/Mar/20 11:45

Description

Consider code like this:

—

public class Test2 {

public static void main(String[] args) {
Comparator<String> c = new Comparator<String>() {
};
}

}

---

 

There is a method missing in the anonymous class, but an attempt to add it using the error fix leads to:

—

java.lang.NullPointerException
at org.netbeans.api.java.source.ElementUtilities.findUnimplementedMethods(ElementUtilities.java:904)
at org.netbeans.api.java.source.ElementUtilities.findUnimplementedMethods(ElementUtilities.java:665)
at org.netbeans.modules.java.editor.codegen.ImplementOverrideMethodGenerator.getImplementDescriptions(ImplementOverrideMethodGenerator.java:218)
at org.netbeans.modules.java.editor.codegen.ImplementOverrideMethodGenerator.selectMethodsToImplement(ImplementOverrideMethodGenerator.java:145)
at org.netbeans.modules.java.hints.errors.ImplementAllAbstractMethods$ImplementFixBase$1.run(ImplementAllAbstractMethods.java:320)
at org.netbeans.modules.java.hints.errors.ImplementAllAbstractMethods$ImplementFixBase$1.run(ImplementAllAbstractMethods.java:316)
at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:502)
at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:130)
at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:114)
at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81)
at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:452)
at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:423)
at org.netbeans.modules.java.hints.errors.ImplementAllAbstractMethods$ImplementFixBase.implement(ImplementAllAbstractMethods.java:316)
[catch] at org.netbeans.modules.editor.hints.HintsUI$1.run(HintsUI.java:810)
at org.openide.util.RequestProcessor$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)

—

 

Originally reported here:

http://mail-archives.apache.org/mod_mbox/netbeans-users/201911.mbox/%3C2971b37b-5471-2ec8-f52d-28ac2b3e6165%40univ-cotedazur.fr%3E

 

Issue Links

• links to: GitHub Pull Request #1702