[ 
https://issues.apache.org/jira/browse/NETBEANS-923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16504232#comment-16504232
 ] 

Jan Lahoda commented on NETBEANS-923:
-------------------------------------

Is there a particular code on which this can be reproduced?

Thanks.

 

> Add throws clause triggers exception in editor
> ----------------------------------------------
>
>                 Key: NETBEANS-923
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-923
>             Project: NetBeans
>          Issue Type: Bug
>          Components: java - Hints
>    Affects Versions: 9.0
>            Reporter: Sven Reimers
>            Priority: Major
>
> Using the hint to add a throws clause to the main method results in the 
> following exception:
> {code:java}
> java.lang.IllegalArgumentException: Copying to 773 is greater then its size 
> (770).
> at 
> org.netbeans.modules.java.source.save.CasualDiff.copyTo(CasualDiff.java:5797)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.copyTo(CasualDiff.java:5776)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffClassDef(CasualDiff.java:1092)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl0(CasualDiff.java:5250)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl(CasualDiff.java:5144)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:5071)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:5042)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffList(CasualDiff.java:3878)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTopLevel(CasualDiff.java:574)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl0(CasualDiff.java:5223)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl(CasualDiff.java:5144)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:5071)
> at 
> org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:5054)
> at org.netbeans.modules.java.source.save.CasualDiff.diff(CasualDiff.java:342)
> at 
> org.netbeans.api.java.source.WorkingCopy.processCurrentCompilationUnit(WorkingCopy.java:907)
> at org.netbeans.api.java.source.WorkingCopy.getChanges(WorkingCopy.java:1319)
> at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:675)
> at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:662)
> at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:501)
> 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$2.call(TaskProcessor.java:178)
> at 
> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
> at 
> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
> at 
> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
> at 
> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
> at 
> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
> at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81)
> at 
> org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:451)
> at 
> org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:422)
> at 
> org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:683)
> at 
> org.netbeans.modules.java.hints.errors.UncaughtException$AddThrowsClauseHintImpl.implement(UncaughtException.java:494)
> [catch] at org.netbeans.modules.editor.hints.HintsUI$1.run(HintsUI.java:835)
> at org.openide.util.RequestProcessor$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)
> {code}



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