Merge
diff --git a/.hgtags b/.hgtags
index 32b1eca..e27e202 100644
--- a/.hgtags
+++ b/.hgtags
@@ -31,3 +31,4 @@
 15096652c4d48dfb9fc0b2cb135304db94c65ba0 jdk7-b54
 c8b275d62d6b0a980c510e839b70292245863e85 jdk7-b55
 a8134c4ee2cf451cf9b5e1609f39d83ecd53acc5 jdk7-b56
+b44f05654c26fcd1f995e712992f9b07ffd7c0c6 jdk7-b57