@Override
    public boolean contains(Object target) {
        return affectedJoints.get(((Joint) target).getId());
    }
Remove the named joints.

@param armature the Armature containing the joints (not null, unaffected)
@param jointNames the names of the joints to be removed
@return this

@throws IllegalArgumentException if it can not find the joint
         with the specified name on the provided armature
jme3-core/src/main/java/com/jme3/anim/ArmatureMask.java