Support JDK9 build 9-ea+160 --------------------------- Key: MODCLUSTER-559 URL: https://issues.jboss.org/browse/MODCLUSTER-559 Project: mod_cluster Issue Type: Task Components: Core &amp; Container Integration (Java) Reporter: Radoslav Husar Assignee: Radoslav Husar Labels: jdk9 Fix For: 2.0.0.Alpha1, 1.3.6.CR3 {noformat} defaultStrategy(org.jboss.modcluster.config.SessionDrainingStrategyTestCase) Time elapsed: 0.005 sec <<< ERROR! java.lang.ExceptionInInitializerError at org.jboss.modcluster.config.SessionDrainingStrategyTestCase.<init>(SessionDrainingStrategyTestCase.java:11) Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @6a28ffa4 at org.jboss.modcluster.config.SessionDrainingStrategyTestCase.<init>(SessionDrainingStrategyTestCase.java:11) {noformat}