Valery LEPRETRE [http://community.jboss.org/people/v.lepretre%40cadwin.com] replied to the discussion "New version of process with modification in java class : the change is not taken into account" To view the discussion, visit: http://community.jboss.org/message/533722#533722 -------------------------------------------------------------- Hi Maciej, Thanks for the zip. I'll look in it as soon as  possible. Yes,  I do the same. Direct writing in the database with Ant. I suppose too it's a cache problem. Does it mean the java code is read from the LOB and compiled before it's use? I've done the following test (still with JBoss 5.1.0 and with Oracle & HSQLDB) I deploy my famous "Test2" process I stop the JBoss server I remove the jar file from userlibs I restart JBoss and run Test2 (the process works) With a query, I set to null (empty) the LOB corresponding to the Java1 class I run Test2, it's Ok I stop and start JBoss I run Test2, *it's Ok* (Wow) With a query, I set to null (empty) the LOB corresponding to the process definition. I run Test2, ** and I get a beautiful "*org.jbpm.api.JbpmException*" (which seems normal) So I think it's a problem related to JBoss (cache), but I don't know where to look to fix that problem. Have you an idea? Thanks again for your time Valéry * * -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/533722#533722] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]