Hi, Please review this patch which makes the Java container metrics adhere to -XX:+/-UseContainerSupport so they can be disabled if heuristics turn out to be wrong. The approach taken is to use JNI and call into the JVM in order to determine the setting of UseContainerSupport before Metrics are being instantiated.
The intention is for this patch to be backported to older JDKs so as to provide a means to disable container metrics should things go wrong with backports of the likes of JDK-8226575. Bug: https://bugs.openjdk.java.net/browse/JDK-8250627 webrev: https://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8250627/01/webrev/ Testing: New container test. Existing container tests. jdk/submit. tier1 on Linux x86_64. Thoughts? Thanks, Severin
