hi to all, i've centos 6 server for mysql and glassfish for
java, and centos 7 client for netbeans for java ee 7.
i installed glassfish server in service in netbeans add server section. this is ok but when i started glassfish server from netbeans
IDE it shows "Could not start GlassFish server 4.1.1: Administrator port is occupied by null". please tell how to get rid of this.