- For XObject I am checking if object is null which is a member of XObject (and not o) - I'll remove the null check in SDE.- Maybe a webrev helps: http://cr.openjdk.java.net/~khazra/8016576/webrev.01/ <http://cr.openjdk.java.net/%7Ekhazra/8016576/webrev.01/>Looks fine, but trivially remove the unnecessary null check in equals before pushing. If 'o instanceof XObject', then it cannot be null. Similar for SDE.equals
-Chris.
-- -Kurchi