Upgrading Jacoco version
Upgrade of Jacoco can be done in three steps. They are needed because part of the code is not handled by copybara.
1st pull request
- Add prebuilt jars for new version to third_party/java/jacoco
 - Add new version to third_party/java/jacoco/BUILD
 - Update latest version in the same build file
 - Check if asm library needs to be updated as well
 
This PR needs to be merged.
2nd pull request
- Update versions in the tools/jdk/BUILD.java_tools
 
Or anywhere else outside of third_party.
This PR is handled by copybara.
3rd pull request
- Remove prebuilt jars of the old version
 - Update third_party/java/jacoco/BUILD accordingly
 
This PR needs to be merged.