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This bug was originally marked as duplicate of bug 240803, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE Dev (Build nbms-and-javadoc-309-on-20151203) VM: Java HotSpot(TM) 64-Bit Server VM, 25.72-b15, Java(TM) SE Runtime Environment, 1.8.0_72-b15 OS: Windows 8.1 User Comments: stefan79: Exception occured while renaming a Method-Variable. Stacktrace: java.lang.IllegalArgumentException: Copying to 6768 is greater then its size (6767). at org.netbeans.modules.java.source.save.CasualDiff.copyTo(CasualDiff.java:5511) at org.netbeans.modules.java.source.save.CasualDiff.copyTo(CasualDiff.java:5490) at org.netbeans.modules.java.source.save.CasualDiff.diffClassDef(CasualDiff.java:918) at org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl0(CasualDiff.java:4964) at org.netbeans.modules.java.source.save.CasualDiff.diffTreeImpl(CasualDiff.java:4877) at org.netbeans.modules.java.source.save.CasualDiff.diffTree(CasualDiff.java:4809)
Created attachment 158255 [details] stacktrace
*** This bug has been marked as a duplicate of bug 240803 ***