Would you mind to review the following patch?
bug: https://bugs.openjdk.java.net/browse/JDK-8158190
webrev: http://cr.openjdk.java.net/~mli/8158190/webrev.00/
existing test (test/tools/launcher/modules/patch/basic/PatchTest.java)
tests 2 scenarios:
1. testWithExplodedPatches, for example,
patches1/java.base:patches2/java.base
2. testWitJarPatches, for example,
patches/java.base-1.jar:patches/java-base-2.jar
there should be one more scenario to test mixture of both Jar and
exploded patches.
Thank you
-Hamlin
