Jade4DMZ throws NullPointerException

2014-10-07 15:16:59.889+0200 [info]   java.lang.NullPointerException
2014-10-07 15:16:59.889+0200 [info]   	at sos.scheduler.jade.SOSJade4DMZJSAdapter.doProcessing(SOSJade4DMZJSAdapter.java:104)
2014-10-07 15:16:59.889+0200 [info]   	at sos.scheduler.jade.SOSJade4DMZJSAdapter.spooler_process(SOSJade4DMZJSAdapter.java:63)
2014-10-07 15:16:59.889+0200 [ERROR]  COM-80020009  DISP_E_EXCEPTION [step] [] [Z-JAVA-105  Java exception java.lang.NullPointerException, method=spooler_process()Z [], in Remote_module_instance_server::step], method=call