8276422: Add command-line option to disable finalization

Co-authored-by: David Holmes <dholmes@openjdk.org>
Co-authored-by: Brent Christian <bchristi@openjdk.org>
Reviewed-by: dholmes, kbarrett, bchristi

src/java.base/share/native/libjava/Finalizer.c

@@ -32,4 +32,7 @@ Java_java_lang_ref_Finalizer_reportComplete(JNIEnv* env, jclass cls, jobject fin
     JVM_ReportFinalizationComplete(env, finalizee);
 }
 
-
+JNIEXPORT jboolean JNICALL
+Java_java_lang_ref_Finalizer_isFinalizationEnabled(JNIEnv* env, jclass cls) {
+    return JVM_IsFinalizationEnabled(env);
+}