Warnings compiling JMX classes due to missing hashCode method

When building jdk8 there are a lot of warnings, including a few when compiling the JMX classes. They should be examined as there may be real bugs here.


/u/alanb/ws/tl/jdk/src/share/classes/javax/management/NotificationBroadcasterSupport.java:278: warning: [overrides] Class ListenerInfo overrides equals, but neither it nor any superclass overrides hashCode method
    private static class ListenerInfo {
                   ^
/u/alanb/ws/tl/jdk/src/share/classes/javax/management/NotificationBroadcasterSupport.java:303: warning: [overrides] Class WildcardListenerInfo overrides equals, but neither it nor any superclass overrides hashCode method
    private static class WildcardListenerInfo extends ListenerInfo {
                   ^
:

/u/alanb/ws/tl/jdk/src/closed/share/classes/com/sun/jmx/snmp/SnmpParameters.java:34: warning: [overrides] Class SnmpParameters overrides equals, but neither it nor any superclass overrides hashCode method
public class SnmpParameters extends SnmpParams implements Cloneable, Serializable {
       ^