fix NullPointerException (#3258)

Author: xiancao

integration-tests/src/test/java/oracle/weblogic/kubernetes/ItMiiDomain.java

@@ -1022,8 +1022,8 @@ private static void collectAppAvailability(
         .atMost(15, MINUTES)
         .await()
         .conditionEvaluationListener(
-            condition -> logger.info("Waiting for patched application running on all managed servers in namespace {1} "
-                + "(elapsed time {2}ms, remaining time {3}ms)",
+            condition -> logger.info("Waiting for patched application running on all managed servers in namespace {0} "
+                + "(elapsed time {1}ms, remaining time {2}ms)",
             namespace,
             condition.getElapsedTimeInMS(),
             condition.getRemainingTimeInMS()))

integration-tests/src/test/java/oracle/weblogic/kubernetes/assertions/impl/Kubernetes.java

@@ -371,7 +371,7 @@ public static boolean isOperatorPodReady(String namespace) throws ApiException {
     boolean status = false;
     String labelSelector = String.format("weblogic.operatorName in (%s)", namespace);
     V1Pod pod = getPod(namespace, labelSelector, "weblogic-operator-");
-    if (pod != null) {
+    if (pod != null && pod.getStatus() != null && pod.getStatus().getConditions() != null) {
       // get the podCondition with the 'Ready' type field
       V1PodCondition v1PodReadyCondition = pod.getStatus().getConditions().stream()
           .filter(v1PodCondition -> "Ready".equals(v1PodCondition.getType()))