8u20 Request for approval for JDK-8023945

[Paul Govereau]

Please approve backport fix for bug 8023945 from jdk9 to jdk8u20.

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8023945
  https://bugs.openjdk.java.net/browse/JDK-8035765  (backport)

JDK9 changeset:
  http://hg.openjdk.java.net/jdk9/dev/langtools/rev/04419fec8fd4

Thanks,
Paul