https://github.com/cglib/cglib/cglib: cglib is a powerful, high performance and quality Code Generation Library, It is used to extend JAVA classes and implements interfaces at runtime. 
package net.sf.cglib.core;

import org.objectweb.asm.Type;

public interface HashCodeCustomizer extends KeyFactoryCustomizer {
    
Customizes calculation of hashcode

Params:
  • e – code emitter
  • type – parameter type
/**
     * Customizes calculation of hashcode
     * @param e code emitter
     * @param type parameter type
     */
    boolean customize(CodeEmitter e, Type type);
}