tree 45a3fa450018a69a5e6034e4a8ab5980c11b8dd6
parent a00d0d6d56796d611235ddc2effc88d05de4cfd4
author Pete Gillin <peteg@google.com> 1570462253 +0000
committer Pete Gillin <peteg@google.com> 1570705195 +0100

Enable Java language level 9 by default (3rd attempt).

This changes the default Java language level from 8 to 9, i.e. javac
invocations now use -source 1.9 -target 1.9.

The environment variable EXPERIMENTAL_JAVA_LANGUAGE_LEVEL_9=false is
added to switch back to the language level 8 behaviour. (Previously,
setting that variable to true was required to opt in to language level
9.)

Test: make droid java tests cts docs
Test: javap -v <some class file in output> | grep 'major version' (reports 53, for classes from 'benchmarks' which is in Android.bp and 'ahat' which is in Android.mk)
Test: make RunBluetoothRoboTests RunCarSettingsLibRoboTests (two main flavours of robolectric)
Test: make cts && cts-tradefed help
Test: atest CtsLibcoreTestCases (reasonably low-level device tests)
Test: atest CtsHostTzDataTests (arbitrary host test)
Bug: 115604102
Change-Id: I13b2ff61c6423ad99464e0a4d2b1bedfd8ae1080