Fix Simulator Buildersjava-17

Simulator Builders have to return a HttpServletServer Object
because are used by drools-applications.

Issue-ID: POLICY-4814
Change-Id: If3dbe5db437464d291c7b3e14183159aa6b35cbb
Signed-off-by: FrancescoFioraEst <francesco.fiora@est.tech>

1 files changed, 2 insertions, 1 deletions

diff --git a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
index f4b6141f8..a88bb0231 100644
--- a/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
+++ b/models-interactions/model-actors/actor.sdnc/src/test/java/org/onap/policy/controlloop/actor/sdnc/BasicSdncOperation.java
@@ -76,7 +76,8 @@ public abstract class BasicSdncOperation extends BasicHttpOperation {
      * Starts the simulator.
      */
     protected static void initBeforeClass() throws Exception {
-        Util.buildSdncSim();
+        var testServer = Util.buildSdncSim();
+        assertNotNull(testServer);
 
         BusTopicParams clientParams = BusTopicParams.builder().clientName(MY_CLIENT).basePath("restconf/operations/")
                         .hostname("localhost").managed(true).port(Util.SDNCSIM_SERVER_PORT).build();