diff --git a/core/definitions.mk b/core/definitions.mk
index 62942eed9f..159073e9f0 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2521,6 +2521,13 @@ define desugar-classpath
 $(filter-out -classpath -bootclasspath "",$(subst :,$(space),$(1)))
 endef
 
+# Takes an sdk version that might be PLATFORM_VERSION_CODENAME (for example P),
+# returns a number greater than the highest existing sdk version if it is, or
+# the input if it is not.
+define codename-or-sdk-to-sdk
+$(if $(filter $(1),$(PLATFORM_VERSION_CODENAME)),10000,$(1))
+endef
+
 define desugar-classes-jar
 @echo Desugar: $@
 @mkdir -p $(dir $@)
@@ -2528,7 +2535,7 @@ $(hide) rm -f $@ $@.tmp
 $(hide) java -jar $(DESUGAR) \
     $(addprefix --bootclasspath_entry ,$(call desugar-bootclasspath,$(PRIVATE_BOOTCLASSPATH))) \
     $(addprefix --classpath_entry ,$(PRIVATE_ALL_JAVA_LIBRARIES)) \
-    --min_sdk_version $(PRIVATE_SDK_VERSION) \
+    --min_sdk_version $(call codename-or-sdk-to-sdk,$(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
     --allow_empty_bootclasspath \
     $(if $(filter --core-library,$(PRIVATE_DX_FLAGS)),--core_library) \
     -i $< -o $@.tmp
@@ -2545,7 +2552,7 @@ $(hide) rm -f $(dir $@)classes*.dex
 $(hide) $(DX) \
     -JXms16M -JXmx2048M \
     --dex --output=$(dir $@) \
-    --min-sdk-version=$(PRIVATE_SDK_VERSION) \
+    --min-sdk-version=$(call codename-or-sdk-to-sdk,$(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
     $(if $(NO_OPTIMIZE_DX), \
         --no-optimize) \
     $(if $(GENERATE_DEX_DEBUG), \
diff --git a/core/java.mk b/core/java.mk
index 2864e569ad..175311c65c 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -466,12 +466,14 @@ javac-check-$(LOCAL_MODULE) : $(full_classes_compiled_jar)
 my_desugaring :=
 ifndef LOCAL_JACK_ENABLED
 ifeq ($(LOCAL_JAVA_LANGUAGE_VERSION),1.8)
+ifndef LOCAL_IS_STATIC_JAVA_LIBRARY
 my_desugaring := true
 $(full_classes_desugar_jar): PRIVATE_DX_FLAGS := $(LOCAL_DX_FLAGS)
 $(full_classes_desugar_jar): $(full_classes_compiled_jar) $(DESUGAR)
 	$(desugar-classes-jar)
 endif
 endif
+endif
 
 ifndef my_desugaring
 full_classes_desugar_jar := $(full_classes_compiled_jar)