Fix copyright and checkstyle

etc/scripts/updateparent.awk

@@ -1,6 +1,6 @@
 #!awk -f
 #
-# Copyright (c) 2023 Oracle and/or its affiliates.
+# Copyright (c) 2023, 2024 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

examples/webserver/threads/src/main/java/io/helidon/examples/webserver/threads/Main.java

@@ -16,8 +16,8 @@
 
 package io.helidon.examples.webserver.threads;
 
-import io.helidon.logging.common.LogConfig;
 import io.helidon.config.Config;
+import io.helidon.logging.common.LogConfig;
 import io.helidon.webclient.api.WebClient;
 import io.helidon.webserver.WebServer;
 import io.helidon.webserver.http.HttpRouting;
@@ -27,7 +27,7 @@
  */
 public class Main {
 
-    static WebClient webclient;
+    private static WebClient webclient;
 
     /**
      * Cannot be instantiated.
@@ -40,7 +40,7 @@ private Main() {
      * @param args command line arguments.
      */
     public static void main(String[] args) {
-        
+
         // load logging configuration
         LogConfig.configureRuntime();
 
@@ -70,4 +70,8 @@ static void routing(HttpRouting.Builder routing) {
         routing
                .register("/thread", new ThreadService());
     }
-}
+
+    static WebClient webClient() {
+        return webclient;
+    }
+}

examples/webserver/threads/src/main/java/io/helidon/examples/webserver/threads/ThreadService.java

@@ -37,7 +37,7 @@
 class ThreadService implements HttpService {
 
     private static final System.Logger LOGGER = System.getLogger(ThreadService.class.getName());
-    private static final Random rand = new Random(System.currentTimeMillis());
+    private static final Random RANDOM = new Random(System.currentTimeMillis());
 
     // ThreadPool of platform threads.
     private static ExecutorService platformExecutorService;
@@ -133,7 +133,7 @@ private void fanOutHandler(ServerRequest request, ServerResponse response) {
             // For this we use our virtual thread based executor. We submit the work and save the Futures
             var futures = new ArrayList<Future<String>>();
             for (int i = 0; i < count; i++) {
-                futures.add(virtualExecutorService.submit(() -> callRemote(rand.nextInt(5))));
+                futures.add(virtualExecutorService.submit(() -> callRemote(RANDOM.nextInt(5))));
             }
 
             // After work has been submitted we loop through the future and block getting the results.
@@ -156,14 +156,14 @@ private void fanOutHandler(ServerRequest request, ServerResponse response) {
     }
 
     /**
-     * Simulate a remote client call by calling this server's sleep endpoint
+     * Simulate a remote client call by calling this server's sleep endpoint.
      *
-     * @param seconds number of seconds the endpoint should sleep.
+     * @param seconds number of seconds the endpoint should sleep
      * @return string response from client
      */
     private String callRemote(int seconds) {
         LOGGER.log(Level.INFO, Thread.currentThread() + ": Calling remote sleep for " + seconds + "s");
-        WebClient client = Main.webclient;
+        WebClient client = Main.webClient();
         ClientResponseTyped<String> response = client.get("/sleep/" + seconds).request(String.class);
         if (response.status().equals(Status.OK_200)) {
             return response.entity();
@@ -172,7 +172,7 @@ private String callRemote(int seconds) {
     }
 
     /**
-     * Sleep current thread
+     * Sleep current thread.
      *
      * @param seconds number of seconds to sleep
      * @return number of seconds requested to sleep
@@ -187,14 +187,14 @@ private int sleep(int seconds) {
     }
 
     /**
-     * Perform a CPU intensive computation
+     * Perform a CPU intensive computation.
      *
      * @param iterations: number of times to perform computation
      * @return result of computation
      */
     private double compute(int iterations) {
         LOGGER.log(Level.INFO, Thread.currentThread() + ": Computing with " + iterations + " iterations");
-        double d = 123456789.123456789 * rand.nextInt(100);
+        double d = 123456789.123456789 * RANDOM.nextInt(100);
         for (int i = 0; i < iterations; i++) {
             for (int n = 0; n < 1_000_000; n++) {
                 for (int j = 0; j < 5; j++) {