Merge
diff --git a/.hgtags b/.hgtags
index d365651..89f5f01 100644
--- a/.hgtags
+++ b/.hgtags
@@ -25,3 +25,4 @@
 1bf51a4c2627c2f0e0cbcc2cf0421bdb37f1f2b2 jdk7-b48
 6b84b04a80afe23262377c60913eebfc898f14c4 jdk7-b49
 5da0e6b9f4f18ef483c977337214b12ee0e1fc8f jdk7-b50
+a25c5ec5e40e07733d1ff9898a0abe36159288ff jdk7-b51