+++ This bug was initially created as a clone of Bug #1330191 +++ Description of problem: We have a Web application that makes use of the jbpm EJB remote API. The web application will handle a process that right after a task is complete, a subprocess is started and it has a signal event; In the web application and using the ProcessServiceEJBLocal, RuntimeDataServiceEJBLocal and UserTaskServiceEJBLocal, it will do the following in a method of a stateless EJB (that has the mentioned jbpm EJBs injected) - complete the task - find the subprocess instance id - send a signal to the subprocess The subprocess instance ID is found correctly, but when sending the signal, we have an exception saying that the process can't be found. Version-Release number of selected component (if applicable): n/a How reproducible: always Steps to Reproduce: 1. Create a process that has a task and then a subprocess that waits for a signal 2. In an application that uses the EJB API, start the process and the task from an EJB in a method 3. In the other method, complete the task and try to signal the process instance id (the attached reproducer clarifies the issue) Actual results: Exception: Expected results: 11:52:45,403 ERROR [org.jboss.as.ejb3.invocation] (http-/127.0.0.1:8080-1) JBAS014134: EJB Invocation failed on component ProcessServiceEJBImpl for method public abstract void org.jbpm.services.api.ProcessService.signalProcessInstance(java.lang.Long,java.lang.String,java.lang.Object): javax.ejb.EJBTransactionRolledbackException: Process instance with id 4 was not found Subprocess signaled with success. Additional info: Reproducer is attached. Read the reproducer README.md before running it. --- Additional comment from JBoss Product and Program Management on 2016-04-25 11:00:09 EDT --- Since this issue was entered in Red Hat Bugzilla, the release flag has been set to ? to ensure that it is properly evaluated for this release.