apps are not cleared if selected cluster is empty.

Author: wangmingliang-ms

PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-springcloud/src/main/java/com/microsoft/azure/toolkit/intellij/springcloud/creation/AbstractSpringCloudAppInfoPanel.java

@@ -76,14 +76,14 @@ protected void init() {
 
     private void onSubscriptionChanged(final ItemEvent e) {
         if (e.getStateChange() == ItemEvent.SELECTED || e.getStateChange() == ItemEvent.DESELECTED) {
-            final Subscription subscription = (Subscription) e.getItem();
+            final Subscription subscription = this.getSelectorSubscription().getValue();
             this.getSelectorCluster().setSubscription(subscription);
         }
     }
 
     private void onClusterChanged(final ItemEvent e) {
         if (e.getStateChange() == ItemEvent.SELECTED || e.getStateChange() == ItemEvent.DESELECTED) {
-            final SpringCloudCluster c = (SpringCloudCluster) e.getItem();
+            final SpringCloudCluster c = this.getSelectorCluster().getValue();
             final String appName = StringUtils.firstNonBlank(this.getTextName().getName(), this.defaultAppName);
             if (Objects.nonNull(c)) {
                 final SpringCloudApp app = c.app(new SpringCloudAppEntity(appName, c.entity()));

PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-springcloud/src/main/java/com/microsoft/azure/toolkit/intellij/springcloud/deplolyment/SpringCloudDeploymentConfigurationPanel.java

@@ -88,14 +88,14 @@ private void onArtifactChanged(final ItemEvent e) {
 
     private void onSubscriptionChanged(final ItemEvent e) {
         if (e.getStateChange() == ItemEvent.SELECTED || e.getStateChange() == ItemEvent.DESELECTED) {
-            final Subscription subscription = (Subscription) e.getItem();
+            final Subscription subscription = this.selectorSubscription.getValue();
             this.selectorCluster.setSubscription(subscription);
         }
     }
 
     private void onClusterChanger(final ItemEvent e) {
         if (e.getStateChange() == ItemEvent.SELECTED || e.getStateChange() == ItemEvent.DESELECTED) {
-            final SpringCloudCluster cluster = (SpringCloudCluster) e.getItem();
+            final SpringCloudCluster cluster = this.selectorCluster.getValue();
             this.selectorApp.setCluster(cluster);
         }
     }