Huisheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "Problems with usage python language in jpdl.xml" To view the discussion, visit: http://community.jboss.org/message/534540#534540 -------------------------------------------------------------- Hi Andrey. If you set a process varaible named 'testvar1', then the script activity will run success. This is my test case: public void testJava() {         this.deployJpdlClasspath("jpdl/x10script/X1003PythonTest.jpdl.xml");         Map map = new HashMap();         map.put("testvar1", 10);         ProcessInstance processInstance = executionService             .startProcessInstanceByKey("X1003PythonTest", map);         assertTrue(processInstance.isEnded());     } The content of jpdl.xml is as same as yours. But if I am not set a 'testvar1' variable, then the same Exception occured. I have checked the source of GroovyScriptEngineFactory, there were a lot of codes to evaluate the groovy snipts, I afraid that if you want to use local variable in script actviity, you should do it by yourself. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/534540#534540] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]