code: private void processMethodCall() {
          if ("invoke".equals(getNameConstantOperand()) && "java/lang/reflect/Method".equals(getClassConstantOperand())) {
              return;
          }
          String sig = getSigConstantOperand();
          List<String> args = SignatureUtils.getParameterSignatures(sig);
          if (stack.getStackDepth() >= args.size()) {
              for (int i = 0; i < args.size(); i++) {
                  String argSig = args.get(i);
                  if (argSig.startsWith(Values.SIG_ARRAY_PREFIX)) {
                      OpcodeStack.Item itm = stack.getStackItem(args.size() - i - 1);
                      int arrayReg = itm.getRegisterNumber();
                      WrapperInfo wi = wrappers.get(Integer.valueOf(arrayReg));
                      if (wi != null) {
                          wi.wasArg = true;
                      }
                  }
              }
          }
      }
docs: processes a method call looking for parameters that are arrays. If this array was seen earlier as a simple wrapping array, then it marks it as being
  having been used as a parameter.