Set timeout back to reasonable value

Author: arjantijms

servlet/security-clientcert/src/test/java/org/javaee7/servlet/security/clientcert/SecureServletTest.java

@@ -211,7 +211,7 @@ public void checkServerTrusted(X509Certificate[] chain, String authType) throws
             SSLSocketFactory factory = context.getSocketFactory();
 
             try (SSLSocket socket = (SSLSocket) factory.createSocket(host, port)) {
-                socket.setSoTimeout(0);
+                socket.setSoTimeout(15000);
                 socket.startHandshake();
                 socket.close();
             }