Description of problem: Platform issue for these two JIRAs for support on GAE: * https://issues.jboss.org/browse/DROOLS-1125 Google App Engine support: ClassLoader.getSystemClassLoader() throws exception * https://issues.jboss.org/browse/DROOLS-1127 Google App Engine support: Do not call new Thread() by allowing to plug in a custom ThreadFactory Additional info:
- DROOLS-1125 cherry-picked to 6.4.x branch with https://github.com/droolsjbpm/droolsjbpm-knowledge/commit/dca37faec - DROOLS-1127 cherry-picked to 6.4.x branch with https://github.com/droolsjbpm/drools/commit/9ab5ff396