diff --git a/aconfig/init.go b/aconfig/init.go
index 72f6bb6..05fab4c 100644
--- a/aconfig/init.go
+++ b/aconfig/init.go
@@ -67,6 +67,20 @@
 			Command:     `${aconfig} dump --dedup --format protobuf --out $out $flags`,
 			CommandDeps: []string{"${aconfig}"},
 		}, "flags")
+	// For exported_java_aconfig_library: Generate a JAR from all
+	// java_aconfig_libraries to be consumed by apps built outside the
+	// platform
+	exportedJavaRule = pctx.AndroidStaticRule("exported_java_aconfig_library",
+		blueprint.RuleParams{
+			Command: `rm -rf ${out}.tmp` +
+				`&& for cache in ${cache_files}; do ${aconfig} create-java-lib --cache $$cache --out ${out}.tmp; done` +
+				`&& $soong_zip -write_if_changed -jar -o ${out} -C ${out}.tmp -D ${out}.tmp` +
+				`&& rm -rf ${out}.tmp`,
+			CommandDeps: []string{
+				"$aconfig",
+				"$soong_zip",
+			},
+		}, "cache_files")
 )
 
 func init() {
@@ -80,4 +94,5 @@
 	ctx.RegisterModuleType("aconfig_values", ValuesFactory)
 	ctx.RegisterModuleType("aconfig_value_set", ValueSetFactory)
 	ctx.RegisterParallelSingletonType("all_aconfig_declarations", AllAconfigDeclarationsFactory)
+	ctx.RegisterParallelSingletonType("exported_java_aconfig_library", ExportedJavaDeclarationsLibraryFactory)
 }