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From "bilu (Jira)" <j...@apache.org>
Subject [jira] [Created] (NETBEANS-3932) java.lang.NullPointerExceptionjava GsfHintsProvider.computeErrors
Date Mon, 02 Mar 2020 10:54:00 GMT
bilu created NETBEANS-3932:
------------------------------

             Summary: java.lang.NullPointerExceptionjava GsfHintsProvider.computeErrors
                 Key: NETBEANS-3932
                 URL: https://issues.apache.org/jira/browse/NETBEANS-3932
             Project: NetBeans
          Issue Type: Bug
          Components: editor - Hints &amp; Annotations, editor - Parsing &amp; Indexing
    Affects Versions: 11.1
         Environment: Product Version: Apache NetBeans IDE 11.1
Updates: NetBeans IDE is updated to version NetBeans 8.2 Patch 2
Java: 1.8.0_181; Java HotSpot(TM) 64-Bit Server VM 25.181-b13
Runtime: Java(TM) SE Runtime Environment 1.8.0_181-b13
System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb)
User directory: C:\Users\xxxx\AppData\Roaming\NetBeans\11.1
Cache directory: C:\Users\xxxx\AppData\Local\NetBeans\Cache\11.1
            Reporter: bilu


Step to reproduce the problem:

1-Follow the tutorial: [https://platform.netbeans.org/tutorials/nbm-javacc-parser.html]

or get complete code source here: [https://github.com/vparfonov/api-samples/tree/master/nb-api-samples~api-samples/versions/7.2/tutorials/SimpleJava2]
 * At this step run the project and you will get:  java.lang.ClassCastException: org.simplejava.parser.SJParser$SJParserResult
cannot be cast to org.netbeans.modules.csl.spi.ParserResult

2-Update SJParserResult class to extend o.n.m.csl.spi.ParserResult instead of o.n.m.parsing.spi.Parser.Result
like suggest here  https://bz.apache.org/netbeans/show_bug.cgi?id=167064

to fix precedent issue

3-Run the Project, you will get now :

java.lang.NullPointerExceptionjava.lang.NullPointerException at org.netbeans.modules.csl.hints.GsfHintsProvider.computeErrors(GsfHintsProvider.java:114)
at org.netbeans.modules.csl.hints.GsfHintsProvider.processErrors(GsfHintsProvider.java:388)
at org.netbeans.modules.csl.hints.GsfHintsProvider.processErrorsRecursive(GsfHintsProvider.java:359)
at org.netbeans.modules.csl.hints.GsfHintsProvider.refreshErrors(GsfHintsProvider.java:327)
at org.netbeans.modules.csl.hints.GsfHintsProvider.access$200(GsfHintsProvider.java:79) at
org.netbeans.modules.csl.hints.GsfHintsProvider$2.run(GsfHintsProvider.java:407) at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
at org.netbeans.modules.parsing.api.ParserManager$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$2.call(TaskProcessor.java:178)
at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67) at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)Caused:
org.netbeans.modules.parsing.spi.ParseException at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:186)
at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81)[catch] at org.netbeans.modules.csl.hints.GsfHintsProvider.run(GsfHintsProvider.java:405)
at org.netbeans.modules.csl.hints.GsfHintsProvider.run(GsfHintsProvider.java:79) at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.openide.util.RequestProcessor$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)

 

 



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