Tests and testsuite of EJB3 project does not run under IBM JDK. Or better to say there are several erros and some failures.

I would like kindly ask for help in investigation of cause of the problem. I suppose that it will be more obvious for you.

You can check failures from hudson jobs:
IBM JDK6
Components tests of EAP EJB3 project
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap5-ejb3-testsuite-5.2.0-jdk6-matrix/3/Slaves=RHEL6,jdk=ibm16/
IBM JDK7
Hudson run for EAP5 EJB3 testsuite is here:
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap-5.2.x-ejb3-Oraclejdk7/4/
Hudson run of test of components of EAP5 EJB3 project is here:
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap5-ejb3-testsuite-5.2.0-jdk7-matrix/Slaves=RHEL6,jdk=ibm17/