org.rubyforge.debugcommons.RubyDebuggerException: Unable to read breakpoint number of the removed breakpoint (1) in the specified timeout [30s]
        at org.rubyforge.debugcommons.ReadersSupport.poll(ReadersSupport.java:224)
        at org.rubyforge.debugcommons.ReadersSupport.waitForRemovedBreakpoint(ReadersSupport.java:212)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.removeBreakpoint(RubyDebuggerProxy.java:264)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.removeBreakpoint(RubyDebuggerProxy.java:241)
        at org.netbeans.modules.ruby.debugger.breakpoints.RubyBreakpointManager.removeBreakpoint(RubyBreakpointManager.java:116)
        at org.netbeans.modules.ruby.debugger.breakpoints.PersistenceManager.breakpointRemoved(PersistenceManager.java:95)
        at org.netbeans.api.debugger.DebuggerManager.fireBreakpointRemoved(DebuggerManager.java:873)
        at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:581)
        at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:556)
        at org.netbeans.modules.ruby.debugger.breakpoints.RubyBreakpointActionProvider.doAction(RubyBreakpointActionProvider.java:87)
        at org.netbeans.spi.debugger.ActionsProvider$1.run(ActionsProvider.java:112)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:602)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1084)