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This issue was reported manually by sdedic. It already has 5 duplicates Build: NetBeans IDE 8.0.1 (Build 201408251540) VM: Java HotSpot(TM) 64-Bit Server VM, 24.65-b04, Java(TM) SE Runtime Environment, 1.7.0_67-b01 OS: Windows 8 User Comments: GUEST: i am not sure GUEST: Trying to resolve conflict in maven subproject GUEST: resolving conflicts when this error appears GUEST: Made a pull from a mercurial repository and conflicts where detected. went to team>mercurial>conflicts>resolve conflicts and the error popped up project.properties file shows conflicts but doesn't show on conflict resolver GUEST: did not notice Stacktrace: java.lang.IndexOutOfBoundsException: Invalid line index=1079 >= lineCount=627 at org.netbeans.modules.editor.lib2.document.LineRootElement.getElement(LineRootElement.java:84) at org.openide.text.NbDocument$DocumentRenderer.run(NbDocument.java:923) at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1391) at org.openide.text.NbDocument$DocumentRenderer.renderToInt(NbDocument.java:898) at org.openide.text.NbDocument.findLineOffset(NbDocument.java:201) at org.netbeans.modules.merge.builtin.visualizer.MergePanel.replace(MergePanel.java:1303)
Created attachment 152109 [details] stacktrace
we really need a new and more modern merge tool.
Created attachment 162433 [details] stacktrace i don't know...