How to locate file which causes Exception?

[niabot]

I have the problem that one of my Java projects causes a CoderMalfunctionError int Netbeans 14 while indexing is performed. This interferes with code completion in this and other projects, as long the project is opened.

I wanted to submit a bug report, but without knowing which file causes the issue, it might not be reproducible. Sadly the Exception does not tell me anything. Is there some way to find the file causing the issue? Bisecting the project could take a while and might cause other issues.

    java.lang.IllegalArgumentException: newPosition > limit: (8193 > 8192)
        at java.base/java.nio.Buffer.createPositionException(Buffer.java:341)
        at java.base/java.nio.Buffer.position(Buffer.java:316)
        at java.base/java.nio.ByteBuffer.position(ByteBuffer.java:1516)
        at java.base/java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:622)
        at org.netbeans.api.queries.FileEncodingQuery$ProxyCharset$ProxyDecoder.decodeHead(FileEncodingQuery.java:239)
        at org.netbeans.api.queries.FileEncodingQuery$ProxyCharset$ProxyDecoder.decodeLoop(FileEncodingQuery.java:201)
        at java.base/java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:585)
    Caused: java.nio.charset.CoderMalfunctionError
        at java.base/java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:587)
        at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:305)
        at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:188)
        at java.base/java.io.InputStreamReader.read(InputStreamReader.java:177)
        at org.netbeans.modules.parsing.api.Source.createSnapshot(Source.java:360)
        at org.netbeans.modules.parsing.impl.SourceCache.createSnapshot(SourceCache.java:157)
        at org.netbeans.modules.parsing.impl.SourceCache.getSnapshot(SourceCache.java:132)
        at org.netbeans.modules.parsing.api.ResultIterator.getSnapshot(ResultIterator.java:86)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1T.run(RepositoryUpdater.java:3153)
        at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
        at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:169)
        at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:140)
        at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
        at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
        at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
        at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
        at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
        at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
        at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
        at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:85)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:3253)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2861)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.lambda$index$0(RepositoryUpdater.java:2626)
        at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:540)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2625)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.lambda$scanSource$3(RepositoryUpdater.java:5719)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.lambda$runInContext$4(RepositoryUpdater.java:2119)
        at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2117)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2098)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1400(RepositoryUpdater.java:135)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5754)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5427)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5059)
   [catch] at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3436)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6181)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$3400(RepositoryUpdater.java:5839)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.lambda$call$0(RepositoryUpdater.java:6100)
        at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
        at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:83)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6100)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6096)
        at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
        at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
        at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
        at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
        at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6096)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.openide.util.RequestProcessor$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)

[sdedic]

You can enable detailed logging, but be prepared for TONS out output... run the IDE with argument(s):
-J-Dorg.netbeans.modules.parsing.api.Source.level=500

the logging will go to $userdir/var/log/messages* file(s). If you want the logs to also appear on the console (stdout), add -J-Dnetbeans.logger.console.

[niabot]

Thank you! I did find the problemetic file in the meantime, but this information will surely be usefull if i encounter another problem. ;-)