diff --git a/java/bootclasspath_fragment_test.go b/java/bootclasspath_fragment_test.go
index aa1c59f41..78e37df87 100644
--- a/java/bootclasspath_fragment_test.go
+++ b/java/bootclasspath_fragment_test.go
@@ -258,4 +258,8 @@ func TestBootclasspathFragment_StubLibs(t *testing.T) {
 	// Check that SdkCorePlatform uses public stubs from the mycoreplatform library.
 	corePlatformStubsJar := "out/soong/.intermediates/mycoreplatform.stubs/android_common/dex/mycoreplatform.stubs.jar"
 	android.AssertPathsRelativeToTopEquals(t, "core platform dex stubs jar", []string{corePlatformStubsJar}, info.TransitiveStubDexJarsByScope[CorePlatformHiddenAPIScope])
+
+	// Check the widest stubs. This should list the widest stub dex jar provided by each module.
+	// TODO(b/179354495): Fix this.
+	android.AssertPathsRelativeToTopEquals(t, "widest dex stubs jar", []string{corePlatformStubsJar}, info.TransitiveStubDexJarsByScope.StubDexJarsForWidestAPIScope())
 }
diff --git a/java/hiddenapi_modular.go b/java/hiddenapi_modular.go
index 70bfdfb3f..6413e9c41 100644
--- a/java/hiddenapi_modular.go
+++ b/java/hiddenapi_modular.go
@@ -305,10 +305,10 @@ func buildRuleToGenerateHiddenAPIStubFlagsFile(ctx android.BuilderContext, name,
 	tempPath := tempPathForRestat(ctx, outputPath)
 
 	// Find the widest API stubs provided by the fragments on which this depends, if any.
-	dependencyStubDexJars := input.DependencyStubDexJarsByScope.stubDexJarsForWidestAPIScope()
+	dependencyStubDexJars := input.DependencyStubDexJarsByScope.StubDexJarsForWidestAPIScope()
 
 	// Add widest API stubs from the additional dependencies of this, if any.
-	dependencyStubDexJars = append(dependencyStubDexJars, input.AdditionalStubDexJarsByScope.stubDexJarsForWidestAPIScope()...)
+	dependencyStubDexJars = append(dependencyStubDexJars, input.AdditionalStubDexJarsByScope.StubDexJarsForWidestAPIScope()...)
 
 	command := rule.Command().
 		Tool(ctx.Config().HostToolPath(ctx, "hiddenapi")).
@@ -579,9 +579,9 @@ func (s StubDexJarsByScope) dedupAndSort() {
 	}
 }
 
-// stubDexJarsForWidestAPIScope returns the stub dex jars for the widest API scope provided by this
+// StubDexJarsForWidestAPIScope returns the stub dex jars for the widest API scope provided by this
 // map. The relative width of APIs is determined by their order in hiddenAPIScopes.
-func (s StubDexJarsByScope) stubDexJarsForWidestAPIScope() android.Paths {
+func (s StubDexJarsByScope) StubDexJarsForWidestAPIScope() android.Paths {
 	for i := len(hiddenAPIScopes) - 1; i >= 0; i-- {
 		apiScope := hiddenAPIScopes[i]
 		stubsForAPIScope := s[apiScope]