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Build: NetBeans IDE Dev (Build 201504270341) VM: Java HotSpot(TM) 64-Bit Server VM, 25.45-b02, Java(TM) SE Runtime Environment, 1.8.0_45-b14 OS: Windows 8 User Comments: Lolmewn: Not sure... Stacktrace: java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.TimSort.mergeLo(TimSort.java:773) at java.util.TimSort.mergeAt(TimSort.java:510) at java.util.TimSort.mergeCollapse(TimSort.java:435) at java.util.TimSort.sort(TimSort.java:241) at java.util.Arrays.sort(Arrays.java:1438) at org.netbeans.modules.uml.ui.support.projecttreesupport.ProjectTreeBuilderImpl.sort(ProjectTreeBuilderImpl.java:361)
Created attachment 154245 [details] stacktrace