ExecutorService EJB does not authorize 2 (or more) schedule requests in the same time

Using an application intensively with the JBoss BPMS 6.4.9 in embedded mode, some EJB competition problems can be faced up. ExecutorServiceEJBImpl is being used for scheduling jobs, finding a job, canceling jobs, etc.

The jBPM Executor is used inside the processes (AsyncWorkItem) and the application as follow:

• For processes: Injecting the Executor service via the "kie-deployment-descriptor.xml" like that:

~~~
<work-item-handler>
<resolver>ejb</resolver>
<identifier>...........</identifier>
<parameters>
<parameter xsi:type="xs:string">runtimeManager</parameter>
<parameter xsi:type="xs:string">jndi:java:global/.............../ExecutorServiceEJBImpl</parameter>
</parameters>
<name>JobExecutor</name>
</work-item-handler>
~~~

• Inside the application simply using the following annotation:

~~~
@EJB
ExecutorServiceEJB executorService;
~~~

If you want to schedule or cancel or requeue a request, it is not possible using ExecutorQueryServiceEJBImpl. Normally it should be possible to schedule 2 (or more) requests in the same time but ExecutorServiceEJB doesn't authorize that.