Merge "use java/lang/IllegalArgumentException for pid <= 0" am: 8a401c79dc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2599572

Change-Id: I1c7f3e04137a7fb7ef896988dc5be322ee242491
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>