Owls 103150 - Check that ServerStartupInfo is not empty to determine if the cluster is intentionally shut down (#3582)

* Check that ServerStartupInfo is not empty to determine if the cluster is intentionally shut down

Author: ankedia

operator/src/main/java/oracle/kubernetes/operator/DomainStatusUpdater.java

@@ -943,7 +943,7 @@ private boolean isServerInThisCluster(String serverName) {
         }
 
         private boolean isClusterIntentionallyShutDown() {
-          return startedServers.isEmpty();
+          return getInfo().getServerStartupInfo() != null && startedServers.isEmpty();
         }
 
         private boolean sufficientServersReady() {

operator/src/test/java/oracle/kubernetes/operator/DomainStatusUpdateTestBase.java

@@ -6,6 +6,7 @@
 import java.time.OffsetDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -101,6 +102,7 @@
 import static org.hamcrest.CoreMatchers.not;
 import static org.hamcrest.Matchers.containsInRelativeOrder;
 import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.hasItems;
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.nullValue;
 import static org.hamcrest.junit.MatcherAssert.assertThat;
@@ -1718,6 +1720,27 @@ void whenDomainRecheckOrScheduleStatusUpdateAndAdminOnlyAndAdminServerIsNotReady
     assertThat(getRecordedDomain(), hasCondition(AVAILABLE).withStatus(FALSE));
   }
 
+  @Test
+  void whenServerStartupInfoIsNull_availableIsFalse() {
+    configureDomain().configureCluster(info, "cluster1").withReplicas(2);
+    info.getReferencedClusters().forEach(testSupport::defineResources);
+
+    defineScenario()
+        .withCluster("cluster1", "server1", "server2")
+        .build();
+    info.setServerStartupInfo(null);
+
+    updateDomainStatus();
+
+    assertThat(getClusterConditions(),
+        hasItems(new ClusterCondition(ClusterConditionType.AVAILABLE).withStatus(FALSE)));
+  }
+
+  private Collection<ClusterCondition> getClusterConditions() {
+    return testSupport.<ClusterResource>getResourceWithName(KubernetesTestSupport.CLUSTER, "cluster1")
+        .getStatus().getConditions();
+  }
+
   @SuppressWarnings("SameParameterValue")
   private ScenarioBuilder defineScenario() {
     return new ScenarioBuilder();