hg: jdk/submit: 8198653: ClassLoader::getSystemClassLoader throws InternalError when called after shutdown

[mandy.chung at oracle.com]

Changeset: b5d1fb0701d4
Author:    mchung
Date:      2018-02-24 09:41 -0800
URL:       http://hg.openjdk.java.net/jdk/submit/rev/b5d1fb0701d4

8198653: ClassLoader::getSystemClassLoader throws InternalError when called after shutdown
Reviewed-by: dholmes

! src/java.base/share/classes/java/lang/ClassLoader.java