We get:

java.lang.NoSuchMethodError: sun.reflect.ReflectionFactory.newFieldAccessor(Ljava/lang/reflect/Field;Z)Lsun/reflect/FieldAccessor;
at weblogic.server.ServerLifecycleRuntimeTest.testShutdownRequestTimeout(ServerLifecycleRuntimeTest.java:244)
at weblogic.server.ServerLifecycleRuntimeTest.testNewDefaultShutdownRequestTimeout(ServerLifecycleRuntimeTest.java:222)

when running with JMockit 1.23 on the latest version of JDK9, as JMockit is using internal Sun APIs to access internals. These were removed in build 115