JDK 10 RFR of JDK-8182465: Refactor shell test java/nio/channels/spi/SelectorProvider/inheritedChannel/run_tests.sh to java

[Amy Lu]

java/nio/channels/spi/SelectorProvider/inheritedChannel/run_tests.sh

Please review this patch to refactor the shell test to java.

bug: https://bugs.openjdk.java.net/browse/JDK-8182465
webrev: http://cr.openjdk.java.net/~amlu/8182465/webrev.00/

(run_tests.sh is a @key intermittent test due to 8038768, and the 
intermittent failure issue will be fixed by 8038768)

Thanks,
Amy