开启jmx监控后关闭tomcat提示Port already in use的问题

linux中关闭tomcat失败，提示port already in use错误。 Stopping Tomcat Using CATALINA_BASE:   /usr/local/tomcat7 Using CATALINA_HOME:   /usr/local/tomcat7 Using CATALINA_TMPDIR: /usr/local/tomcat7......