Admin4J 为 J2EE 应用提供了一组管理的支持，包括异常管理、线程争用告警、内存使用告警、应用错误报告和运行时日志管理的功能。-Admin4J J2EE application provides a set of management support, including exception management, the thread contention alarms, memory usage alarm application error reporting and log ma