Ignore boolean null check in spotbugs

Signed-off-by: Venkatesh Kannan <[email protected]>

cluster-operator/src/main/java/io/strimzi/operator/cluster/model/ListenersUtils.java

@@ -4,6 +4,7 @@
  */
 package io.strimzi.operator.cluster.model;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import io.strimzi.api.kafka.model.common.template.ExternalTrafficPolicy;
 import io.strimzi.api.kafka.model.common.template.IpFamily;
 import io.strimzi.api.kafka.model.common.template.IpFamilyPolicy;
@@ -787,11 +788,11 @@ public static List<String> brokerExternalIPs(GenericKafkaListener listener, int
      * @param listener Listener for which to allocate NodePorts
      * @return         Whether to allocate NodePorts for Service
      */
+    @SuppressFBWarnings(value = {"NP_BOOLEAN_RETURN_NULL"}, justification = "Null is being checked by the caller, so " +
+                                                                            "the Service defaults can takeover properly")
     public static Boolean allocateLoadBalancerNodePorts(GenericKafkaListener listener) {
-        if (listener.getConfiguration() != null) {
-            return listener.getConfiguration().getAllocateLoadBalancerNodePorts();
-        } else {
-            return true;
-        }
+        return listener.getConfiguration() != null ?
+                listener.getConfiguration().getAllocateLoadBalancerNodePorts() :
+                null;
     }
 }