Cannot convert <long_int> to java.lang.Integer

a custom script that throws the following error in the logs:

org.mozilla.javascript.WrappedException: Wrapped org.mozilla.javascript.EvaluatorException: Cannot convert 6275679840 to java.lang.Integer

STEP TO REPRODUCE:

1. 1. Open /sys.scripts.do
   2. input the following script and submit

   3. var calculator = new DurationCalculator();
      var due = calculator.calcRelativeDueDate("05/26/2020", "2147483648", "16:00:00");

• java integer limit is: 2,147,483,647
• Anything above this number will throw the error

• refactor custom code
• in the above script, the second argument to method calcRelativeDueDate is expecting the number of days
• 2147483648 days equals 58835.168438356 centuries