gistfile1.java

import org.springframework.security.authentication.encoding.Md5PasswordEncoder;

public class CustomMd5PasswordEncoder extends Md5PasswordEncoder {

	@Override
	protected String mergePasswordAndSalt(String password, Object salt,
			boolean strict) {
		if (password == null) {
			password = "";
		}

		if (salt == null) {
			return password;
		}
		return salt.toString() + password;
	}
}