Masayoshi,I'm looking to backport this fix which was been soaking in jdk8 for a few months now.
Fix is identical with the exception of some comment re-ordering and redeclaring of the javaAWTAccess variable to keep code consistent with jdk8.
jdk8 review thread : http://mail.openjdk.java.net/pipermail/i18n-dev/2012-October/000799.html
bug report : http://bugs.sun.com/view_bug.do?bug_id=7196533 webrev : http://cr.openjdk.java.net/~coffeys/webrev.7196533.7u/ Regards, Sean.