There is a bug in the current version of Jack
that causes problems when the default is changed to
1.8. Pinning to 1.7 appears to help.
Bug: 27305482
Bug: 26753820
Change-Id: Ia29bf5cb14c754be4c4b453aa89a9d9c369d9e52
Jack was disabled because of bugs in Jack and missing support for testing
obfuscated applications. Both are now fixed so Jack can be enabled.
Bug: 27215871
(cherry picked from commit bf6bd40faa)
Change-Id: I73d3c5a3599640932b2305ffe22bb5ef27814ba3