[8u] 8066900: Array Out Of Bounds Exception causes variable corruption

[Igor Veresov]

This is P1, and needs to be backported. The jdk9 changeset applies without conflict.

Webrev: http://cr.openjdk.java.net/~iveresov/8066900/webrev.00/ <http://cr.openjdk.java.net/~iveresov/8066900/webrev.00/>
JBS: https://bugs.openjdk.java.net/browse/JDK-8066900 <https://bugs.openjdk.java.net/browse/JDK-8066900>
JDK9 changeset:  http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/bf3499dc002a <http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/bf3499dc002a>

Thanks,
igor