Added trim() to cope with spaces around host nameS

src/main/java/examples/Example9.java

@@ -0,0 +1,28 @@
+package examples;
+
+import java.util.List;
+import java.util.Map;
+import me.legrange.mikrotik.MikrotikApiException;
+
+/**
+ * Example 7: Dump your complete config
+ *
+ * @author gideon
+ */
+public class Example8 extends Example {
+
+    public static void main(String... args) throws Exception {
+        Example8 ex = new Example8();
+        ex.connect();
+        ex.test();
+        ex.disconnect();
+    }
+
+    private void test() throws MikrotikApiException, InterruptedException {
+       List<Map<String, String>> res = con.execute("/ip/hotspot/user/print where uptime!=1");
+        for (Map<String, String> r : res) {
+            System.out.println(r);
+        } 
+//        con.execute("/ip/firewall/filter/add chain=forward hotspot=!auth protocol=tcp src-port=8000-8084");
+    }
+}

src/main/java/me/legrange/mikrotik/impl/ApiConnectionImpl.java

@@ -164,7 +164,7 @@ public final class ApiConnectionImpl extends ApiConnection {
      */
     private void open(String host, int port, boolean secure) throws ApiConnectionException {
         try {
-            InetAddress ia = InetAddress.getByName(host);
+            InetAddress ia = InetAddress.getByName(host.trim());
             if (secure) {
                 sock = openSSLSocket(ia, port);
             } else {