Null pointer exception testing proposed fix for JGRP-1426

Per email exchange: testing a proposed fix for JGRP-1426, I hit the following exception:

SEVERE: failed sending message to 10.239.0.5 (185 bytes):
java.lang.NullPointerException, cause: null
java.lang.NullPointerException
at org.jgroups.protocols.pbcast.JoinRsp.writeTo(JoinRsp.java:90)
at org.jgroups.util.Util.writeStreamable(Util.java:934)
at org.jgroups.protocols.pbcast.GMS$GmsHeader.writeTo(GMS.java:1155)
at org.jgroups.Message.writeHeader(Message.java:891)
at org.jgroups.Message.writeTo(Message.java:698)
at org.jgroups.protocols.TP.writeMessage(TP.java:1367)
at org.jgroups.protocols.TP.send(TP.java:1279)
at org.jgroups.protocols.TP.down(TP.java:1138)
at org.jgroups.protocols.Discovery.down(Discovery.java:573)
at org.jgroups.protocols.TCPPING.down(TCPPING.java:108)
at org.jgroups.protocols.MERGE3.down(MERGE3.java:242)
at org.jgroups.protocols.FD.down(FD.java:308)
at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:80)
at org.jgroups.protocols.pbcast.NAKACK2.down(NAKACK2.java:493)
at org.jgroups.protocols.UNICAST2.down(UNICAST2.java:502)
at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:328)
at org.jgroups.protocols.pbcast.GMS.sendJoinResponse(GMS.java:543)
at org.jgroups.protocols.pbcast.CoordGmsImpl.handleMembershipChange(CoordGmsImpl.java:156)
at org.jgroups.protocols.pbcast.GMS$ViewHandler.process(GMS.java:1390)
at org.jgroups.protocols.pbcast.GMS$ViewHandler.run(GMS.java:1344)
at java.lang.Thread.run(Thread.java:662)

You said:

ah, ok, this is a change I made recently, to reduce the size of digests.

Can you open a JIRA so we can track this ?

I'll fix it this week.

... so here we are.

Thanks!

David