CustomMethodFilter.java

package com.example;

import java.io.ObjectInputFilter;
import java.io.ObjectInputFilter.FilterInfo;

public class CustomMethodFilter {
	
	static ObjectInputFilter.Status classFilter(FilterInfo info) {
        Class<?> serialClass = info.serialClass();
        if (serialClass != null) {
            return !(serialClass.getName().equals("com.example.Employee")) //serialClass.getPackageName().equals("com.example")
                    ? ObjectInputFilter.Status.ALLOWED
                    : ObjectInputFilter.Status.REJECTED;
        }
        return ObjectInputFilter.Status.UNDECIDED;
    }

}