diff --git a/core/java.mk b/core/java.mk
index 1ddd23a..9ee4231 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -344,7 +344,11 @@
 ifndef LOCAL_CHECKED_MODULE
 ifdef full_classes_jar
 ifdef LOCAL_JACK_ENABLED
+ifeq ($(LOCAL_JACK_ENABLED),javac_frontend)
+LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
+else
 LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
+endif
 else
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
@@ -775,6 +779,26 @@
 $(built_dex_intermediate): PRIVATE_JACK_COVERAGE_OPTIONS :=
 endif
 
+# Compiling with javac to jar, then converting jar to dex with jack
+ifeq ($(LOCAL_JACK_ENABLED),javac_frontend)
+
+# PRIVATE_EXTRA_JAR_ARGS and source files were already handled during javac
+$(built_dex_intermediate): PRIVATE_EXTRA_JAR_ARGS :=
+$(built_dex_intermediate): PRIVATE_JAVA_SOURCES :=
+$(built_dex_intermediate): PRIVATE_SOURCE_INTERMEDIATES_DIR :=
+$(built_dex_intermediate): PRIVATE_HAS_PROTO_SOURCES :=
+$(built_dex_intermediate): PRIVATE_HAS_RS_SOURCES :=
+
+# Incremental compilation is not supported when mixing javac and jack
+$(built_dex_intermediate): PRIVATE_JACK_INCREMENTAL_DIR :=
+
+# Pass output of javac to jack
+$(built_dex_intermediate): PRIVATE_JACK_IMPORT_JAR := $(full_classes_compiled_jar)
+$(built_dex_intermediate): $(full_classes_compiled_jar)
+else # LOCAL_JACK_ENABLED != javac_frontend
+$(built_dex_intermediate): PRIVATE_JACK_IMPORT_JAR :=
+endif # LOCAL_JACK_ENABLED != javac_frontend
+
 $(built_dex_intermediate): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
 $(built_dex_intermediate): PRIVATE_JACK_PLUGIN := $(LOCAL_JACK_PLUGIN)
 $(built_dex_intermediate): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server