org.rubyforge.debugcommons.RubyDebuggerException: Unable to read breakpoint number of the removed breakpoint (1) in the specified timeout [15s]
        at org.rubyforge.debugcommons.ReadersSupport.poll(ReadersSupport.java:203)
        at org.rubyforge.debugcommons.ReadersSupport.waitForRemovedBreakpoint(ReadersSupport.java:191)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.removeBreakpoint(RubyDebuggerProxy.java:235)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.removeBreakpoint(RubyDebuggerProxy.java:212)
        at org.netbeans.modules.ruby.debugger.breakpoints.RubyBreakpointManager.removeBreakpoint(RubyBreakpointManager.java:116)
        at org.netbeans.modules.ruby.debugger.breakpoints.PersistenceManager.breakpointRemoved(PersistenceManager.java:93)
        at org.netbeans.api.debugger.DebuggerManager.fireBreakpointRemoved(DebuggerManager.java:853)
        at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:574)
        at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:549)
        at org.netbeans.modules.ruby.debugger.breakpoints.RubyBreakpointActionProvider.doAction(RubyBreakpointActionProvider.java:84)
        at org.netbeans.spi.debugger.ActionsProvider$1.run(ActionsProvider.java:105)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)