enable Java build for PDK build
- Highest LOCAL_SDK_VERSION forced for package build / java library build

Bug: 6352960
Change-Id: I4a26bf26a51b95fb97c8b2adc9d32a543832c708
diff --git a/core/java.mk b/core/java.mk
index b302c9f..4005ce3 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -3,6 +3,14 @@
 # LOCAL_MODULE_CLASS
 # all_res_assets
 
+ifeq ($(TARGET_BUILD_PDK),true)
+# LOCAL_SDK not defined or set to current
+ifeq ($(filter-out current,$(LOCAL_SDK_VERSION)),)
+LOCAL_SDK_VERSION := $(PDK_BUILD_SDK_VERSION)
+endif
+endif #PDK
+
+
 # Make sure there's something to build.
 # It's possible to build a package that doesn't contain any classes.
 ifeq (,$(strip $(LOCAL_SRC_FILES)$(all_res_assets)$(LOCAL_STATIC_JAVA_LIBRARIES)))