Test for jgroups auth/encrypt protocols fails on IBM7

The test is in infinispan-server ( https://github.com/infinispan/infinispan-server/blob/master/testsuite/src/test/java/org/infinispan/server/test/jgroups/auth/AuthAndEncryptProtocolTest.java ), and it uses keystores generated with oracle java. IBMs java 1.7 has problems loading these keystores ( https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777-0000-0000-0000-000014222497 ).
Fix is to use a keystore generated with ibm7 when the test is run under ibm7.

I'll send a PR once the infinispan-server project is migrated to infinispan.