diff --git a/java/app.go b/java/app.go
index 05fa505..5817238 100755
--- a/java/app.go
+++ b/java/app.go
@@ -925,6 +925,16 @@
 
 func (a *AndroidAppImport) uncompressEmbeddedJniLibs(
 	ctx android.ModuleContext, inputPath android.Path, outputPath android.OutputPath) {
+	// Test apps don't need their JNI libraries stored uncompressed. As a matter of fact, messing
+	// with them may invalidate pre-existing signature data.
+	if ctx.InstallInTestcases() && Bool(a.properties.Presigned) {
+		ctx.Build(pctx, android.BuildParams{
+			Rule:   android.Cp,
+			Output: outputPath,
+			Input:  inputPath,
+		})
+		return
+	}
 	rule := android.NewRuleBuilder()
 	rule.Command().
 		Textf(`if (zipinfo %s 'lib/*.so' 2>/dev/null | grep -v ' stor ' >/dev/null) ; then`, inputPath).
@@ -1002,6 +1012,8 @@
 	var installDir android.InstallPath
 	if Bool(a.properties.Privileged) {
 		installDir = android.PathForModuleInstall(ctx, "priv-app", a.BaseModuleName())
+	} else if ctx.InstallInTestcases() {
+		installDir = android.PathForModuleInstall(ctx, a.BaseModuleName(), ctx.DeviceConfig().DeviceArch())
 	} else {
 		installDir = android.PathForModuleInstall(ctx, "app", a.BaseModuleName())
 	}
@@ -1158,6 +1170,10 @@
 	a.data = android.PathsForModuleSrc(ctx, a.testProperties.Data)
 }
 
+func (a *AndroidTestImport) InstallInTestcases() bool {
+	return true
+}
+
 // android_test_import imports a prebuilt test apk with additional processing specified in the
 // module. DPI or arch variant configurations can be made as with android_app_import.
 func AndroidTestImportFactory() android.Module {
diff --git a/java/app_test.go b/java/app_test.go
index 9bdef4e..862af77 100644
--- a/java/app_test.go
+++ b/java/app_test.go
@@ -1628,6 +1628,40 @@
 	}
 }
 
+func TestAndroidTestImport_NoJinUncompressForPresigned(t *testing.T) {
+	ctx, _ := testJava(t, `
+		android_test_import {
+			name: "foo",
+			apk: "prebuilts/apk/app.apk",
+			certificate: "cert/new_cert",
+			data: [
+				"testdata/data",
+			],
+		}
+
+		android_test_import {
+			name: "foo_presigned",
+			apk: "prebuilts/apk/app.apk",
+			presigned: true,
+			data: [
+				"testdata/data",
+			],
+		}
+		`)
+
+	variant := ctx.ModuleForTests("foo", "android_common")
+	jniRule := variant.Output("jnis-uncompressed/foo.apk").RuleParams.Command
+	if !strings.HasPrefix(jniRule, "if (zipinfo") {
+		t.Errorf("Unexpected JNI uncompress rule command: " + jniRule)
+	}
+
+	variant = ctx.ModuleForTests("foo_presigned", "android_common")
+	jniRule = variant.Output("jnis-uncompressed/foo_presigned.apk").BuildParams.Rule.String()
+	if jniRule != android.Cp.String() {
+		t.Errorf("Unexpected JNI uncompress rule: " + jniRule)
+	}
+}
+
 func TestStl(t *testing.T) {
 	ctx, _ := testJava(t, cc.GatherRequiredDepsForTest(android.Android)+`
 		cc_library {