diff --git a/core/config.mk b/core/config.mk
index 0920b56..08147cf 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -730,11 +730,7 @@
 COLUMN:= column
 
 ifeq ($(EXPERIMENTAL_USE_OPENJDK9),)
-ifeq ($(RUN_ERROR_PRONE),true)
-USE_OPENJDK9 :=
-else
 USE_OPENJDK9 := true
-endif
 TARGET_OPENJDK9 :=
 else ifeq ($(EXPERIMENTAL_USE_OPENJDK9),false)
 USE_OPENJDK9 :=
diff --git a/core/host_java_library_common.mk b/core/host_java_library_common.mk
index 51e2d94..8df4b37 100644
--- a/core/host_java_library_common.mk
+++ b/core/host_java_library_common.mk
@@ -48,8 +48,3 @@
 
 LOCAL_INTERMEDIATE_SOURCE_DIR := $(intermediates.COMMON)/src
 LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
-
-# If error prone is enabled then add LOCAL_ERROR_PRONE_FLAGS to LOCAL_JAVACFLAGS
-ifeq ($(RUN_ERROR_PRONE),true)
-LOCAL_JAVACFLAGS += $(LOCAL_ERROR_PRONE_FLAGS)
-endif
diff --git a/core/java.mk b/core/java.mk
index 19e6377..78b492d 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -227,11 +227,6 @@
 # Deps for generated source files must be handled separately,
 # via deps on the target that generates the sources.
 
-# If error prone is enabled then add LOCAL_ERROR_PRONE_FLAGS to LOCAL_JAVACFLAGS
-ifeq ($(RUN_ERROR_PRONE),true)
-LOCAL_JAVACFLAGS += $(LOCAL_ERROR_PRONE_FLAGS)
-endif
-
 # For user / userdebug builds, strip the local variable table and the local variable
 # type table. This has no bearing on stack traces, but will leave less information
 # available via JDWP.
diff --git a/core/java_common.mk b/core/java_common.mk
index 5dfbc5f..486f087 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -193,16 +193,25 @@
 
 annotation_processor_flags :=
 annotation_processor_deps :=
+annotation_processor_jars :=
+
+# If error prone is enabled then add LOCAL_ERROR_PRONE_FLAGS to LOCAL_JAVACFLAGS
+ifeq ($(RUN_ERROR_PRONE),true)
+annotation_processor_jars += $(ERROR_PRONE_JARS)
+LOCAL_JAVACFLAGS += $(ERROR_PRONE_FLAGS)
+LOCAL_JAVACFLAGS += '-Xplugin:ErrorProne $(ERROR_PRONE_CHECKS) $(LOCAL_ERROR_PRONE_FLAGS)'
+endif
 
 ifdef LOCAL_ANNOTATION_PROCESSORS
-  annotation_processor_jars := $(call java-lib-files,$(LOCAL_ANNOTATION_PROCESSORS),true)
-  annotation_processor_flags += -processorpath $(call normalize-path-list,$(annotation_processor_jars))
-  annotation_processor_deps += $(annotation_processor_jars)
+  annotation_processor_jars += $(call java-lib-files,$(LOCAL_ANNOTATION_PROCESSORS),true)
 
   # b/25860419: annotation processors must be explicitly specified for grok
   annotation_processor_flags += $(foreach class,$(LOCAL_ANNOTATION_PROCESSOR_CLASSES),-processor $(class))
+endif
 
-  annotation_processor_jars :=
+ifneq (,$(strip $(annotation_processor_jars)))
+annotation_processor_flags += -processorpath $(call normalize-path-list,$(annotation_processor_jars))
+annotation_processor_deps += $(annotation_processor_jars)
 endif
 
 full_static_java_libs := $(call java-lib-files,$(LOCAL_STATIC_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))