[jboss-jira] [JBoss JIRA] (JGRP-1502) NAKACK / NAKACK2: modifying header of copy can still lead to side effects

NAKACK / NAKACK2: modifying header of copy can still lead to side effects ------------------------------------------------------------------------- Key: JGRP-1502 URL: https://issues.jboss.org/browse/JGRP-1502 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.0.12, 3.2 NAKACK and NAKACK2 copy a message (e.g. for retransmission) and then modify the NakackHeader of the copy *in place*. However, as Message.copy() does *not* copy the headers themselves, only the array holding the references to the headers, the modification of NakackHeader will also modify the original message ! SOLUTION: Create a new header off of the exitsing header and call Message.putHeader(), overwriting the old header.