Declare private constructors in AsyncUtils and ExecutorUtils

Author: jbern0rd

src/main/java/com/iexec/worker/utils/AsyncUtils.java

@@ -1,5 +1,5 @@
 /*
-* Copyright 2020 IEXEC BLOCKCHAIN TECH
+* Copyright 2020-2023 IEXEC BLOCKCHAIN TECH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,16 +16,17 @@
 
 package com.iexec.worker.utils;
 
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executor;
 
 @Slf4j
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class AsyncUtils {
 
-    private AsyncUtils() {}
-
     /**
      * The default {@link CompletableFuture#runAsync(Runnable)} fails silently when an exception
      * is thrown in the running thread. This wrapper method adds an exception handler that logs

src/main/java/com/iexec/worker/utils/ExecutorUtils.java

@@ -1,5 +1,5 @@
 /*
-* Copyright 2020 IEXEC BLOCKCHAIN TECH
+* Copyright 2020-2023 IEXEC BLOCKCHAIN TECH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -16,15 +16,16 @@
 
 package com.iexec.worker.utils;
 
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 
 import java.util.concurrent.Executor;
 import java.util.concurrent.ThreadPoolExecutor.DiscardPolicy;
 
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class ExecutorUtils {
 
-    private ExecutorUtils() {}
-
     public static Executor
             newSingleThreadExecutorWithFixedSizeQueue(int queueSize, String threadNamePrefix) {
         ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();