WeakProcessor processes JvmtiExport weak oops. Bug: https://bugs.openjdk.java.net/browse/JDK-8223258 Webrev: http://cr.openjdk.java.net/~zgu/JDK-8223258/webrev.00/ Test: hotspot_gc_shenandoah with -XX:+ShenandoahVerify (fastdebug and release) Thanks, -Zhengyu