Force robolectric to run tests using an OpenJDK 9 executable.

Prior to this CL, it would run tests using a later version if one is
on the path. This fails because this robolectric version uses ASM 6.0
which doesn't support classfiles beyond v53 i.e. OpenJDK 9 (and
robolectric doesn't work with ASM 7.0 until roblectric 4.0.x).

Test: make RunCarSettingsLibRoboTests using an OpenJDK 11 toolchain via OVERRIDE_ANDROID_JAVA_HOME
Bug: 135178974
Bug: 135459087
Change-Id: Ie67a01f1f8bcc618462473df9d11bd82c40fbeab
diff --git a/Android.bp b/Android.bp
index 110ee85..089c234 100644
--- a/Android.bp
+++ b/Android.bp
@@ -112,7 +112,7 @@
         "Robolectric_sandbox",
         "Robolectric_junit",
         "Robolectric_utils",
-        "asm-6.0",
+        "asm-6.0", // if upgrading to ASM 7.0+, unset my_require_v53_or_lower_class_files in robotest-internal.mk (requires robolectric 4.0.x, see b/135459087)
         "junit",
         "asm-tree-6.0",
         "asm-commons-6.0",