fixed method

Author: marinakog

integration-tests/src/test/java/oracle/kubernetes/operator/utils/TestUtils.java

@@ -1222,7 +1222,7 @@ public static void buildDeployWebServiceAppInPod(
     String archiveExt = "war";
     String infoDirName = initInfoDirName;
     String domainNS = domain.getDomainNS();
-    String managedServerPort = (String) domain.getDomainMap().get("managedServerPort");
+    int managedServerPort = ((Integer) (domain.getDomainMap()).get("managedServerPort")).intValue();
     String wsServiceName = (args.length == 0) ? BaseTest.TESTWSSERVICE : args[0];
     String clusterDNS =
         domain.getDomainUid()