Adding a secure websocket over nginx

Question

I have a Java app with a websocket server. It works via websockets. I need to add SSL in Nginx. I added two configurations: one for proxy by websocket and another for secure websocket

server {

    listen 15459;

    location / {

        proxy_pass http://localhost:15259;
        proxy_redirect off;
        proxy_pass_request_headers on;

        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection Upgrade;
    }

}

server {
    listen 15359 ssl;

    ssl_certificate /etc/ssl/certs/topaz_wss.crt;
    ssl_certificate_key /etc/ssl/private/topaz_wss.key;

    ssl_protocols       TLSv1.1 TLSv1.2;
    ssl_session_timeout 5m;

    location / {

        proxy_pass http://localhost:15259;
        proxy_redirect off;
        proxy_pass_request_headers on;

        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection Upgrade;
    }

}

So, If I connect by websocket to 15359, everything is OK, but, when I connect to 15459 by wss, it dose not work. Where am I wrong?