#26633 Handle received exceptions when getting site response

The commit modifies the logic to handle the processing of responses when invoking the verifyAndReturnSiteAfterCompletion method for site pushing. It now makes use of Java's CompletableFuture.exceptionally method, which allows us to handle exceptions that occur in the previous stages of the pipeline. This change also included a minor adjustment to clarify the calculation for ending time in the Runnable task.

tools/dotcms-cli/cli/src/main/java/com/dotcms/api/client/push/site/SitePushHandler.java

@@ -293,11 +293,12 @@ private SiteView verifyAndReturnSiteAfterCompletion(final String operation,
             final String siteName, final boolean isSiteLive,
             final boolean isArchived) {
 
-        final var siteViewResponse = verifyAndReturnSiteAfterCompletion(
+        var siteViewFuture = verifyAndReturnSiteAfterCompletion(
                 siteName,
                 isSiteLive,
                 isArchived
-        ).join();
+        );
+        final var siteViewResponse = siteViewFuture.exceptionally(ex -> null).join();
 
         if (siteViewResponse == null) {
             logger.error(
@@ -334,7 +335,7 @@ private CompletableFuture<SiteView> verifyAndReturnSiteAfterCompletion(
         Runnable task = new Runnable() {
 
             final long start = System.currentTimeMillis();
-            final long end = start + 15 * 1000;
+            final long end = start + (15 * 1000);
 
             @Override
             public void run() {