hg: jdk/submit: 8216049: stringTable::intern creates redundant String when looking up existing one

[shade at redhat.com]

Changeset: d230a0406623
Author:    shade
Date:      2019-02-16 21:15 +0100
URL:       http://hg.openjdk.java.net/jdk/submit/rev/d230a0406623

8216049: stringTable::intern creates redundant String when looking up existing one
Reviewed-by: redestad, gziemski, rehn, zgu, jiangli

! src/hotspot/share/classfile/stringTable.cpp