Change the default for LOCAL_JAVA_LANGUAGE_VERSION from 1.7 to 1.8

Modify the compiler flags for Jack and javac.

This has the following effects:
1) Generally, some of the type inference rules changed.
2) javac: bytecode is generated with the v52 major version (not v51)
3) jack: Java 8 language features are supported.

The javac / dx toolchain does not support Java 8 language features.

Bug: 26753820
Change-Id: Icf619f601def30600a42a70815fc8cc754eafa8a

diff --git a/core/java_common.mk b/core/java_common.mk
index 08e5ee7..1ec2f79 100644 (file)
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -4,7 +4,7 @@
 ## Java version
 ###########################################################
 ifeq (,$(LOCAL_JAVA_LANGUAGE_VERSION))
-  LOCAL_JAVA_LANGUAGE_VERSION := 1.7
+  LOCAL_JAVA_LANGUAGE_VERSION := 1.8
 endif
 LOCAL_JAVACFLAGS += -source $(LOCAL_JAVA_LANGUAGE_VERSION) -target $(LOCAL_JAVA_LANGUAGE_VERSION)