Hi, Please review: http://cr.openjdk.java.net/~psandoz/lambda/jdk-8012646/webrev/ The stream-based test currently resides in the lambda repo and will flow into tl with other stream-based tests: http://hg.openjdk.java.net/lambda/lambda/jdk/file/d5456784b348/test-ng/tests/org/openjdk/tests/java/util/regex/PatternTest.java Paul.