Hi, Please take a look on a change to allow JCov test execution through jib.
Please notice that this fix also changes behavior of RunTest.gmk when conflicting combination of options is used. JCOV_IMAGE_DIR is now expected to be set when TEST_OPTS_JCOV is true. Shura Bug: https://bugs.openjdk.java.net/browse/JDK-8217761 Webrev: http://cr.openjdk.java.net/~shurailine/8217761/webrev.02/
