kakao tech tcp close_wati

$ netstat -tonp
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.150:16011          CLOSE_WAIT  27836/java          keepalive (7196.98/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.149:40471          CLOSE_WAIT  27836/java          keepalive (7197.80/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.150:16287          CLOSE_WAIT  27836/java          keepalive (7197.62/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.149:40484          CLOSE_WAIT  27836/java          keepalive (7197.83/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.151:30980          CLOSE_WAIT  27836/java          keepalive (7197.09/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.152:30272          CLOSE_WAIT  27836/java          keepalive (7197.76/0/0)
tcp        1      0 10.xx.xx.26:8080           10.yy.yy.152:30147          CLOSE_WAIT  27836/java          keepalive (7197.46/0/0)
...
Wrong Whale