Fix create_test_jar.sh for compilation with OpenJDK 9 javac.

Because there is already a class java.util.HashMap in java.base,
compiling such a class requires a --patch-module command line flag.
This CL adds it to the build script.

Test: ./create_test_jar.sh now completes without error.

Change-Id: I7a76d2d79f4b59cd4768598aaddce9f0faaa6c3f
1 file changed