Description of problem:
org.jbpm.kie.services.test.RuntimeDataServiceImplTest.testGetProcessesSortByProcessVersion fails on OracleJDK8 due to: expected:<[org.jboss.qa.bpms.Human]Task> but was:<[User]Task>
The same condition fails also for org.jbpm.services.cdi.test.RuntimeDataServiceCDIImplTest.testGetProcessesSortByProcessVersion
on JDK8.

Version-Release number of selected component (if applicable):
BPM Suite 6.1.0.ER4

Steps to Reproduce:
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/BxMS/view/BxMS-6.1/view/jBPM/view/all/job/bpms-6.1-jbpm-community-single/build?delay=0sec
change job configuration to use jdk1.8, and run the build with:
module jbpm-services/jbpm-kie-services
test org.jbpm.kie.services.test.RuntimeDataServiceImplTest#testGetProcessesSortByProcessVersion

Actual results:
org.jbpm.kie.services.test.RuntimeDataServiceImplTest.testGetProcessesSortByProcessVersion fails on OracleJDK8 due to: expected:<[org.jboss.qa.bpms.Human]Task> but was:<[User]Task>

Expected results:
The same test works the same on all versions of JDK.

Additional info:
Oracle JDK8, other versions JDK6 and JDK7 are ok