hg: jdk9/sandbox/jdk: 8172215: java launcher no longer accepts -cp "" empty string

[chris.hegarty at oracle.com]

Changeset: e77454faf897
Author:    mchung
Date:      2017-01-04 09:50 -0800
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/e77454faf897

8172215: java launcher no longer accepts -cp "" empty string
Reviewed-by: alanb, dholmes, psandoz

! src/java.base/share/native/libjli/java.c
+ test/lib/testlibrary/ModuleInfoMaker.java
- test/lib/testlibrary/ModuleSourceBuilder.java
! test/tools/launcher/modules/addexports/AddExportsTestWarningError.java
! test/tools/launcher/modules/addreads/AddReadsTestWarningError.java
! test/tools/launcher/modules/classpath/JavaClassPathTest.java