diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 73d1101..f29ff23 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -48,6 +48,7 @@
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE := init.environ.rc
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
+LOCAL_REQUIRED_MODULES := etc_classpath
 
 EXPORT_GLOBAL_ASAN_OPTIONS :=
 ifneq ($(filter address,$(SANITIZE_TARGET)),)
@@ -163,9 +164,7 @@
 $(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/init.environ.rc.in
 	@echo "Generate: $< -> $@"
 	@mkdir -p $(dir $@)
-	$(hide) sed -e 's?%BOOTCLASSPATH%?$(PRODUCT_BOOTCLASSPATH)?g' $< >$@
-	$(hide) sed -i -e 's?%DEX2OATBOOTCLASSPATH%?$(PRODUCT_DEX2OAT_BOOTCLASSPATH)?g' $@
-	$(hide) sed -i -e 's?%SYSTEMSERVERCLASSPATH%?$(PRODUCT_SYSTEM_SERVER_CLASSPATH)?g' $@
+	$(hide) cp $< $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_ASAN_OPTIONS%?$(EXPORT_GLOBAL_ASAN_OPTIONS)?g' $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_GCOV_OPTIONS%?$(EXPORT_GLOBAL_GCOV_OPTIONS)?g' $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS%?$(EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS)?g' $@
@@ -179,6 +178,21 @@
 endef
 
 #######################################
+# /etc/classpath
+include $(CLEAR_VARS)
+LOCAL_MODULE := etc_classpath
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
+LOCAL_MODULE_STEM := classpath
+include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE):
+	@echo "Generate: $@"
+	@mkdir -p $(dir $@)
+	$(hide) echo "export BOOTCLASSPATH $(PRODUCT_BOOTCLASSPATH)" > $@
+	$(hide) echo "export DEX2OATBOOTCLASSPATH $(PRODUCT_DEX2OAT_BOOTCLASSPATH)" >> $@
+	$(hide) echo "export SYSTEMSERVERCLASSPATH $(PRODUCT_SYSTEM_SERVER_CLASSPATH)" >> $@
+
+#######################################
 # sanitizer.libraries.txt
 include $(CLEAR_VARS)
 LOCAL_MODULE := sanitizer.libraries.txt
diff --git a/rootdir/init.environ.rc.in b/rootdir/init.environ.rc.in
index fdaaf1a..bf6e986 100644
--- a/rootdir/init.environ.rc.in
+++ b/rootdir/init.environ.rc.in
@@ -10,9 +10,6 @@
     export ANDROID_TZDATA_ROOT /apex/com.android.tzdata
     export EXTERNAL_STORAGE /sdcard
     export ASEC_MOUNTPOINT /mnt/asec
-    export BOOTCLASSPATH %BOOTCLASSPATH%
-    export DEX2OATBOOTCLASSPATH %DEX2OATBOOTCLASSPATH%
-    export SYSTEMSERVERCLASSPATH %SYSTEMSERVERCLASSPATH%
     %EXPORT_GLOBAL_ASAN_OPTIONS%
     %EXPORT_GLOBAL_GCOV_OPTIONS%
     %EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS%
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 863cf6c..9ac31d6 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -865,6 +865,10 @@
     wait_for_prop apexd.status activated
     perform_apex_config
 
+    # Export *CLASSPATH variables from /etc/classpath
+    # TODO(b/180105615): export from the generated file instead.
+    load_exports /etc/classpath
+
     # Special-case /data/media/obb per b/64566063
     mkdir /data/media 0770 media_rw media_rw encryption=None
     exec - media_rw media_rw -- /system/bin/chattr +F /data/media