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This bug was originally marked as duplicate of bug 249972, 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 20150731-0f4c61a19fcc) VM: Java HotSpot(TM) 64-Bit Server VM, 25.51-b03, Java(TM) SE Runtime Environment, 1.8.0_51-b16 OS: Windows 7 User Comments: GUEST: jdk8_40ea cannot set a debug-breakpoint alwas get this exception akobberup: Thes exception happens when a breakpoint should be hit! jhavlin: Debugging custom Netbeans build (from custom NetBeans build) kalwi: Breakpoint hit while debugging a remote application. ovrabec: I cannot debug at all. I add a breakpoint, debugger does not stop on the line and i am repeatedly getting this exception. Stacktrace: java.lang.NullPointerException at org.netbeans.modules.debugger.jpda.models.CallStackFrameImpl.getLineNumber(CallStackFrameImpl.java:165) at org.netbeans.modules.debugger.jpda.models.JPDAThreadImpl.getLineNumber(JPDAThreadImpl.java:285) at org.netbeans.modules.debugger.jpda.ui.BreakpointOutput.substitute(BreakpointOutput.java:339) at org.netbeans.modules.debugger.jpda.ui.BreakpointOutput.substituteAndPrintText(BreakpointOutput.java:161) at org.netbeans.modules.debugger.jpda.ui.BreakpointOutput.breakpointReached(BreakpointOutput.java:154) at org.netbeans.api.debugger.jpda.JPDABreakpoint.fireJPDABreakpointChange(JPDABreakpoint.java:300)
Created attachment 155082 [details] stacktrace
Note: Debugging works fine in NetBeans IDE 8.1 Beta (Build 201507302201) (#8c0614143f8e) for me.
I'm sorry, I was mistakenly using some old revision. Closing.