fix: handle Sikuli not reachable with Selenium 4 (sikuli is now on sp…

…ecific container port and not anymore on selenium node port)

source/src/main/java/org/cerberus/core/service/robotextension/impl/SikuliService.java

@@ -27,12 +27,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.PrintStream;
-import java.net.HttpURLConnection;
-import java.net.InetSocketAddress;
-import java.net.MalformedURLException;
-import java.net.Proxy;
-import java.net.URL;
-import java.net.URLConnection;
+import java.net.*;
 import java.util.UUID;
 
 import org.apache.commons.codec.binary.Base64;
@@ -45,7 +40,6 @@
 import org.apache.tika.mime.MimeTypes;
 import org.cerberus.core.crud.entity.Parameter;
 import org.cerberus.core.crud.service.IParameterService;
-import org.cerberus.core.crud.service.impl.ParameterService;
 import org.cerberus.core.engine.entity.Identifier;
 import org.cerberus.core.engine.entity.MessageEvent;
 import org.cerberus.core.engine.entity.Session;
@@ -259,7 +253,8 @@ public boolean isSikuliServerReachableOnRobot(Session session) {
             if (connection == null || connection.getResponseCode() != 200) {
                 return false;
             }
-
+        } catch (ConnectException exception) { //Handle Sikuli not reachable with Selenium 4
+            return false;
         } catch (IOException ex) {
             LOG.warn(ex);
             return false;
@@ -298,10 +293,11 @@ public boolean isSikuliServerReachableOnNode(Session session) {
             }
 
             if (connection == null || connection.getResponseCode() != 200) {
-                LOG.warn("Responce code different from 200 when calling '" + urlToConnect + "'");
+                LOG.warn("Response code different from 200 when calling '" + urlToConnect + "'");
                 return false;
             }
-
+        } catch (ConnectException exception) { //Handle Sikuli not reachable with Selenium 4
+            return false;
         } catch (IOException ex) {
             LOG.warn("Exception catch when calling '" + urlToConnect + "' " + ex, ex);
             return false;