diff --git a/java/androidmk.go b/java/androidmk.go
index 5b4f738..908286a 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -95,16 +95,21 @@
 	}
 }
 
+// Called for modules that are a component of a test suite.
+func testSuiteComponent(w io.Writer, test_suites []string) {
+	fmt.Fprintln(w, "LOCAL_MODULE_TAGS := tests")
+	if len(test_suites) > 0 {
+		fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
+			strings.Join(test_suites, " "))
+	} else {
+		fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE := null-suite")
+	}
+}
+
 func (j *Test) AndroidMk() android.AndroidMkData {
 	data := j.Library.AndroidMk()
 	data.Extra = append(data.Extra, func(w io.Writer, outputFile android.Path) {
-		fmt.Fprintln(w, "LOCAL_MODULE_TAGS := tests")
-		if len(j.testProperties.Test_suites) > 0 {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
-				strings.Join(j.testProperties.Test_suites, " "))
-		} else {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE := null-suite")
-		}
+		testSuiteComponent(w, j.testProperties.Test_suites)
 		if j.testConfig != nil {
 			fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", j.testConfig.String())
 		}
@@ -115,6 +120,15 @@
 	return data
 }
 
+func (j *TestHelperLibrary) AndroidMk() android.AndroidMkData {
+	data := j.Library.AndroidMk()
+	data.Extra = append(data.Extra, func(w io.Writer, outputFile android.Path) {
+		testSuiteComponent(w, j.testHelperLibraryProperties.Test_suites)
+	})
+
+	return data
+}
+
 func (prebuilt *Import) AndroidMk() android.AndroidMkData {
 	return android.AndroidMkData{
 		Class:      "JAVA_LIBRARIES",
@@ -321,13 +335,7 @@
 func (a *AndroidTest) AndroidMk() android.AndroidMkData {
 	data := a.AndroidApp.AndroidMk()
 	data.Extra = append(data.Extra, func(w io.Writer, outputFile android.Path) {
-		fmt.Fprintln(w, "LOCAL_MODULE_TAGS := tests")
-		if len(a.testProperties.Test_suites) > 0 {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
-				strings.Join(a.testProperties.Test_suites, " "))
-		} else {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE := null-suite")
-		}
+		testSuiteComponent(w, a.testProperties.Test_suites)
 		if a.testConfig != nil {
 			fmt.Fprintln(w, "LOCAL_FULL_TEST_CONFIG :=", a.testConfig.String())
 		}
@@ -340,13 +348,7 @@
 func (a *AndroidTestHelperApp) AndroidMk() android.AndroidMkData {
 	data := a.AndroidApp.AndroidMk()
 	data.Extra = append(data.Extra, func(w io.Writer, outputFile android.Path) {
-		fmt.Fprintln(w, "LOCAL_MODULE_TAGS := tests")
-		if len(a.appTestHelperAppProperties.Test_suites) > 0 {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE :=",
-				strings.Join(a.appTestHelperAppProperties.Test_suites, " "))
-		} else {
-			fmt.Fprintln(w, "LOCAL_COMPATIBILITY_SUITE := null-suite")
-		}
+		testSuiteComponent(w, a.appTestHelperAppProperties.Test_suites)
 	})
 
 	return data
diff --git a/java/java.go b/java/java.go
index 1fd0a9e..beee1a5 100644
--- a/java/java.go
+++ b/java/java.go
@@ -41,6 +41,7 @@
 	android.RegisterModuleType("java_binary", BinaryFactory)
 	android.RegisterModuleType("java_binary_host", BinaryHostFactory)
 	android.RegisterModuleType("java_test", TestFactory)
+	android.RegisterModuleType("java_test_helper_library", TestHelperLibraryFactory)
 	android.RegisterModuleType("java_test_host", TestHostFactory)
 	android.RegisterModuleType("java_import", ImportFactory)
 	android.RegisterModuleType("java_import_host", ImportFactoryHost)
@@ -1536,6 +1537,12 @@
 	Data []string `android:"path"`
 }
 
+type testHelperLibraryProperties struct {
+	// list of compatibility suites (for example "cts", "vts") that the module should be
+	// installed into.
+	Test_suites []string `android:"arch_variant"`
+}
+
 type Test struct {
 	Library
 
@@ -1545,6 +1552,12 @@
 	data       android.Paths
 }
 
+type TestHelperLibrary struct {
+	Library
+
+	testHelperLibraryProperties testHelperLibraryProperties
+}
+
 func (j *Test) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	j.testConfig = tradefed.AutoGenJavaTestConfig(ctx, j.testProperties.Test_config, j.testProperties.Test_config_template, j.testProperties.Test_suites)
 	j.data = android.PathsForModuleSrc(ctx, j.testProperties.Data)
@@ -1552,6 +1565,10 @@
 	j.Library.GenerateAndroidBuildActions(ctx)
 }
 
+func (j *TestHelperLibrary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	j.Library.GenerateAndroidBuildActions(ctx)
+}
+
 // java_test builds a and links sources into a `.jar` file for the device, and possibly for the host as well, and
 // creates an `AndroidTest.xml` file to allow running the test with `atest` or a `TEST_MAPPING` file.
 //
@@ -1577,6 +1594,21 @@
 	return module
 }
 
+// java_test_helper_library creates a java library and makes sure that it is added to the appropriate test suite.
+func TestHelperLibraryFactory() android.Module {
+	module := &TestHelperLibrary{}
+
+	module.AddProperties(
+		&module.Module.properties,
+		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
+		&module.Module.protoProperties,
+		&module.testHelperLibraryProperties)
+
+	InitJavaModule(module, android.HostAndDeviceSupported)
+	return module
+}
+
 // java_test_host builds a and links sources into a `.jar` file for the host, and creates an `AndroidTest.xml` file to
 // allow running the test with `atest` or a `TEST_MAPPING` file.
 //