RFR: 8022798 "assert(seq > 0) failed: counter overflow" in Kitchensink

[Zhengyu Gu]

This is a simple fix to remove incorrect assertion. NMT sequence number can overflow, and it is handled by shutting  down itself, so the assertion is invalid.

JIRA:      https://bugs.openjdk.java.net/browse/JDK-8022798
Webrev: http://cr.openjdk.java.net/~zgu/8022798/webrev.00/

Test:

Ran Kitchensink on Solaris-Sparcv9 for 3+ days.


Thanks,

-Zhengyu