Backed out 7 changesets (bug 406541, bug 738396, bug 852315, bug 971273, bug 971279) for various java/plugin-related failures on a CLOSED TREE

Backed out changeset 13cc8a7ee925 (bug 852315)
Backed out changeset 23dfc36f99d4 (bug 852315)
Backed out changeset fb56bd7c0feb (bug 406541)
Backed out changeset b24d1437c6f3 (bug 738396)
Backed out changeset 5028e1290b45 (bug 971279)
Backed out changeset 34ecdab0cfc2 (bug 971279)
Backed out changeset 95b4aa01923d (bug 971273)