class Signatures {
protected int drainTasksTo(Collection<? super ForkJoinTask<?>> c) {}
protected Collection<Thread> getQueuedThreads() {}
public Object instantiate(String className, ObjectName loaderName,
Object params[], String signature[])
throws ReflectionException, MBeanException, InstanceNotFoundException {}
public List<ObjectName> getRole(String roleName)
throws IllegalArgumentException,
RoleNotFoundException,
RelationServiceNotRegisteredException {}
public Object invoke(Object obj, Object... args) {}
}