IllegalArgumentException getMessage() becomes null after 16 calls.

ADDITIONAL SYSTEM INFORMATION :
Windows 10. Java 1.8u152

A DESCRIPTION OF THE PROBLEM :
I expect the same exception type with the same message for each call of attached source code.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run attached source code.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect the same exception type with the same message for each call.
ACTUAL -
The message changes after 16th invocation.

---------- BEGIN SOURCE ----------
package test;

import java.lang.reflect.Method;

public class Start {

    public static int method(byte a, int b) {
        return b + a;
    }

    public static void main(String[] args) throws Exception {
        int i = 0;
        Method m = Start.class.getMethod("method", new Class<?>[] { byte.class, int.class });
        while (i < 17) {
            try {
                m.invoke(null, new Double(0), new Integer(0));
            } catch (IllegalArgumentException e) {
                // e.printStackTrace();
                System.out.println(e.getMessage());
            }
            i++;
        }

    }
}
---------- END SOURCE ----------

FREQUENCY : always