diff --git a/java/hiddenapi_singleton_test.go b/java/hiddenapi_singleton_test.go
index 5ea9a5b..3ab2277 100644
--- a/java/hiddenapi_singleton_test.go
+++ b/java/hiddenapi_singleton_test.go
@@ -23,12 +23,20 @@
 	"github.com/google/blueprint/proptools"
 )
 
+// TODO(b/177892522): Move these tests into a more appropriate place.
+
 func fixtureSetPrebuiltHiddenApiDirProductVariable(prebuiltHiddenApiDir *string) android.FixturePreparer {
 	return android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
 		variables.PrebuiltHiddenApiDir = prebuiltHiddenApiDir
 	})
 }
 
+var prepareForTestWithDefaultPlatformBootclasspath = android.FixtureAddTextFile("frameworks/base/boot/Android.bp", `
+	platform_bootclasspath {
+		name: "platform-bootclasspath",
+	}
+`)
+
 var hiddenApiFixtureFactory = android.GroupFixturePreparers(
 	prepareForJavaTest, PrepareForTestWithHiddenApiBuildComponents)
 
@@ -36,6 +44,7 @@
 	result := android.GroupFixturePreparers(
 		hiddenApiFixtureFactory,
 		FixtureConfigureBootJars("platform:foo"),
+		prepareForTestWithDefaultPlatformBootclasspath,
 	).RunTestWithBp(t, `
 		java_library {
 			name: "foo",
@@ -44,8 +53,8 @@
 		}
 	`)
 
-	hiddenAPI := result.SingletonForTests("hiddenapi")
-	hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+	hiddenAPI := result.ModuleForTests("platform-bootclasspath", "android_common")
+	hiddenapiRule := hiddenAPI.Rule("platform-bootclasspath-monolithic-hiddenapi-stub-flags")
 	want := "--boot-dex=out/soong/.intermediates/foo/android_common/aligned/foo.jar"
 	android.AssertStringDoesContain(t, "hiddenapi command", hiddenapiRule.RuleParams.Command, want)
 }
@@ -59,6 +68,7 @@
 	android.GroupFixturePreparers(
 		hiddenApiFixtureFactory,
 		FixtureConfigureBootJars("platform:foo"),
+		prepareForTestWithDefaultPlatformBootclasspath,
 	).ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(expectedErrorMessage)).
 		RunTestWithBp(t, `
 		java_library {
@@ -79,6 +89,7 @@
 	result := android.GroupFixturePreparers(
 		hiddenApiFixtureFactory,
 		FixtureConfigureBootJars("platform:foo"),
+		prepareForTestWithDefaultPlatformBootclasspath,
 	).RunTestWithBp(t, `
 		java_import {
 			name: "foo",
@@ -87,8 +98,8 @@
 	}
 	`)
 
-	hiddenAPI := result.SingletonForTests("hiddenapi")
-	hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+	hiddenAPI := result.ModuleForTests("platform-bootclasspath", "android_common")
+	hiddenapiRule := hiddenAPI.Rule("platform-bootclasspath-monolithic-hiddenapi-stub-flags")
 	want := "--boot-dex=out/soong/.intermediates/foo/android_common/aligned/foo.jar"
 	android.AssertStringDoesContain(t, "hiddenapi command", hiddenapiRule.RuleParams.Command, want)
 }
@@ -97,6 +108,7 @@
 	result := android.GroupFixturePreparers(
 		hiddenApiFixtureFactory,
 		FixtureConfigureBootJars("platform:foo"),
+		prepareForTestWithDefaultPlatformBootclasspath,
 	).RunTestWithBp(t, `
 		java_library {
 			name: "foo",
@@ -112,8 +124,8 @@
 		}
 	`)
 
-	hiddenAPI := result.SingletonForTests("hiddenapi")
-	hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+	hiddenAPI := result.ModuleForTests("platform-bootclasspath", "android_common")
+	hiddenapiRule := hiddenAPI.Rule("platform-bootclasspath-monolithic-hiddenapi-stub-flags")
 	fromSourceJarArg := "--boot-dex=out/soong/.intermediates/foo/android_common/aligned/foo.jar"
 	android.AssertStringDoesContain(t, "hiddenapi command", hiddenapiRule.RuleParams.Command, fromSourceJarArg)
 
@@ -125,6 +137,7 @@
 	result := android.GroupFixturePreparers(
 		hiddenApiFixtureFactory,
 		FixtureConfigureBootJars("platform:foo"),
+		prepareForTestWithDefaultPlatformBootclasspath,
 	).RunTestWithBp(t, `
 		java_library {
 			name: "foo",
@@ -140,8 +153,8 @@
 		}
 	`)
 
-	hiddenAPI := result.SingletonForTests("hiddenapi")
-	hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+	hiddenAPI := result.ModuleForTests("platform-bootclasspath", "android_common")
+	hiddenapiRule := hiddenAPI.Rule("platform-bootclasspath-monolithic-hiddenapi-stub-flags")
 	prebuiltJarArg := "--boot-dex=out/soong/.intermediates/prebuilt_foo/android_common/dex/foo.jar"
 	android.AssertStringDoesContain(t, "hiddenapi command", hiddenapiRule.RuleParams.Command, prebuiltJarArg)
 
@@ -184,13 +197,14 @@
 			result := android.GroupFixturePreparers(
 				hiddenApiFixtureFactory,
 				tc.preparer,
+				prepareForTestWithDefaultPlatformBootclasspath,
 				android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
 					variables.Always_use_prebuilt_sdks = proptools.BoolPtr(tc.unbundledBuild)
 				}),
 			).RunTest(t)
 
-			hiddenAPI := result.SingletonForTests("hiddenapi")
-			hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+			hiddenAPI := result.ModuleForTests("platform-bootclasspath", "android_common")
+			hiddenapiRule := hiddenAPI.Rule("platform-bootclasspath-monolithic-hiddenapi-stub-flags")
 			wantPublicStubs := "--public-stub-classpath=" + generateSdkDexPath(tc.publicStub, tc.unbundledBuild)
 			android.AssertStringDoesContain(t, "hiddenapi command", hiddenapiRule.RuleParams.Command, wantPublicStubs)