Make the java jni_libs property configurable

Bug: 323382414
Bug: 370563864
Test: m nothing --no-skip-soong-tests
Change-Id: I11d8350d338e44d27537c6e5529034ba8a38265c
diff --git a/java/java.go b/java/java.go
index ab11363..a2a4308 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1301,7 +1301,7 @@
 	Test_options TestOptions
 
 	// Names of modules containing JNI libraries that should be installed alongside the test.
-	Jni_libs []string
+	Jni_libs proptools.Configurable[[]string]
 
 	// Install the test into a folder named for the module in all test suites.
 	Per_testcase_directory *bool
@@ -1485,10 +1485,11 @@
 		}
 	}
 
-	if len(j.testProperties.Jni_libs) > 0 {
+	jniLibs := j.testProperties.Jni_libs.GetOrDefault(ctx, nil)
+	if len(jniLibs) > 0 {
 		for _, target := range ctx.MultiTargets() {
 			sharedLibVariations := append(target.Variations(), blueprint.Variation{Mutator: "link", Variation: "shared"})
-			ctx.AddFarVariationDependencies(sharedLibVariations, jniLibTag, j.testProperties.Jni_libs...)
+			ctx.AddFarVariationDependencies(sharedLibVariations, jniLibTag, jniLibs...)
 		}
 	}