------Traceback (most recent call last):  
File string, line 66, in module  
File string, line 47, in PozitieImplicita	
at org.myrobotlab.service.Arduino.servoWrite(Arduino.java:2340)	
at org.myrobotlab.service.Servo.moveTo(Servo.java:367)	
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	
at java.lang.reflect.Method.invoke(Unknown Source)java.lang.NullPointerException: java.lang.NullPointerException	
at org.python.core.Py.JavaError(Py.java:546)	at org.python.core.Py.JavaError(Py.java:537)	
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:188)	
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:204)	
at org.python.core.PyObject.__call__(PyObject.java:478)	
at org.python.core.PyObject.__call__(PyObject.java:482)	
at org.python.core.PyMethod.__call__(PyMethod.java:141)	
at org.python.pycode._pyx6.PozitieImplicita$1(string:52)	
at org.python.pycode._pyx6.call_function(string)	
at org.python.core.PyTableCode.call(PyTableCode.java:167)	
at org.python.core.PyBaseCode.call(PyBaseCode.java:124)	
at org.python.core.PyFunction.__call__(PyFunction.java:403)	
at org.python.pycode._pyx6.f$0(string:71)	at org.python.pycode._pyx6.call_function(string)	
at org.python.core.PyTableCode.call(PyTableCode.java:167)	
at org.python.core.PyCode.call(PyCode.java:18)	
at org.python.core.Py.runCode(Py.java:1386)	
at org.python.core.Py.exec(Py.java:1430)	
at org.python.util.PythonInterpreter.exec(PythonInterpreter.java:267)	
at org.myrobotlab.service.Python$PIThread.run(Python.java:161)

Caused by: java.lang.NullPointerException	
at org.myrobotlab.service.Arduino.servoWrite(Arduino.java:2340)	
at org.myrobotlab.service.Servo.moveTo(Servo.java:367)	
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	
at java.lang.reflect.Method.invoke(Unknown Source)	
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:186)	... 17 more------