Uninitialized Method* variables after JDK-8233913

SonarCloud instance reports problems like:
 The left operand of '==' is a garbage value

C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
  Method* method;
 ...
  if (method == NULL) { // <--- here
    JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
  }

I believe this is caused by refactoring in JDK-8233913 that replaced `methodHandle` with naked `Method*`. `methodHandle` is implicitly initialized to null, while naked variable is not. After reading the original changeset, I found two other places where the same thing happens.