RFR(XS): 8167001: [TESTBUG] java/lang/instrument/DaemonThread/TestDaemonThread.java fails when run by jprt

[Chris Plummer]

Hello, [Sorry if some of you are seeing this a second time. I used the wrong alias the first time around] Please review the following: https://bugs.openjdk.java.net/browse/JDK-8167001 http://cr.openjdk.java.net/~cjplummer/8167001/webrev.00/webrev.jdk/ This fixes an issue with the classpath not being passed to the subprocess, resulting in the main class for the subprocess not being found. It only turns up when running the test with "agentvm", which is the default when running the test via test/Makefile (which is what jprt uses). "othervm" seems to be the default when running jtreg directly from the command line, so it doesn't see this problem. It would also be possible to fix this problem by forcing the test to always run with othervm. However, I feel that is relying on a side affect of othervm and is not its intended purpose.  Existing tests fix this issue by explicitly passing the classpath to the subprocess. This is usually done by passing "true" as the first argument to ProcessTools.createJavaProcessBuilder(). This is actually the default behavior for hotspot/test. For jdk/test the default is "false" so you need to explicitly pass "true". Tested by running with jprt under conditions where the test was previously failing. Also tested by running the test directory locally using jdk/Makefile (which previously was failing). thanks, Chris