[jboss-user] [jBPM] - Re: How can we compare null in the jpdl file

Michael Wohlfart [http://community.jboss.org/people/mwohlf] created the discussion "Re: How can we compare null in the jpdl file" To view the discussion, visit: http://community.jboss.org/message/570444#570444 -------------------------------------------------------------- Hi Bo, I stumbled over this problem too, there is a comment in OpenExecution.java that seems to indicate that jBPM4 doesn't distinguish between variables with a null value and nonexisting process variables: /** retrieve the value for the given key.    * The value can be null.    * If there is no value for the given key, the returned    * value will also be null.  The value for key <code>null</code>    * will always be null as null keys are not allowed. */ Object getVariable(String key); -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/570444#570444] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]