Hi, ICRefillVerifierMark::ICRefillVerifierMark sets "this" as the current verifier, as opposed to the verifier passed in. That is wrong. Bug: https://bugs.openjdk.java.net/browse/JDK-8215500 Webrev: http://cr.openjdk.java.net/~eosterlund/8215500/webrev.00/ Thanks, /Erik