开发Java EE应用程序我收到下一个警告：
WARN: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Información: HHH000401: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/city-help-point?zeroDateTimeBehavior=convertToNull]
Información: HHH000046: Connection properties: {user=chp, password=****}
Información: HHH000006: Autocommit mode: false
Información: HHH000115: Hibernate connection pool size: 20 (min=1)
Información: HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
Información: HHH000397: Using ASTQueryTranslatorFactory
Información: HHH000030: Cleaning up connection pool [jdbc:mysql://localhost:3306/city-help-point?zeroDateTimeBehavior=convertToNull]
Información: HHH000204: Processing PersistenceUnitInfo [
name: chpPUN
...]
我该如何避免它们？