Android 12.0.0 release 26
Merge "Make JAVA_TOOLS_JAR error a little more descriptive." am: 7b46b5a466 am: 01990004ec am: ed699579df

Original change: https://android-review.googlesource.com/c/platform/external/doclava/+/1705585

Change-Id: I1e9f0af8a47f28b23843d536a2d7b5cc7461eb68