jtreg versions at Nov 23/24 will cause issue :
"Can't mix packages, user modules, and patches for system module in library"

test to reproduce the issue is : jake/jdk/test/closed/jdk/rmi/actrefattack/ActRefAttack.java

changesets related to this issue are :
http://hg.openjdk.java.net/code-tools/jtreg/rev/70f5358167fd?revcount=20
http://hg.openjdk.java.net/code-tools/jtreg/rev/b8a5998adddf?revcount=20
http://hg.openjdk.java.net/code-tools/jtreg/rev/d9adc3f43350?revcount=20
http://hg.openjdk.java.net/code-tools/jtreg/rev/e45bb8dfdbcf