code cleanup

Author: sclassen

core/src/main/java/net/adoptopenjdk/icedteaweb/resources/ResourceTracker.java

@@ -384,7 +384,7 @@ private void waitForCompletion(Resource... resources) {
         final int threadCount = Math.min(configuredThreadCount, resources.length);
         final ExecutorService downloadExecutor = Executors.newFixedThreadPool(threadCount, new DaemonThreadFactory());
         try {
-            final List<Future<Resource>> futures = Arrays.asList(resources).stream()
+            final List<Future<Resource>> futures = Arrays.stream(resources)
                     .map(r -> triggerDownloadFor(r, downloadExecutor))
                     .collect(Collectors.toList());
 
@@ -397,9 +397,10 @@ private void waitForCompletion(Resource... resources) {
             LOG.debug("Download done. Shutting down executor");
             downloadExecutor.shutdownNow();
         }
-        
-        if (resources.length == 1 && resources[0].isSet(Status.ERROR))
+
+        if (resources.length == 1 && resources[0].isSet(Status.ERROR)) {
             throw new RuntimeException("Error while downloading initial resource " + resources[0]);
+        }
     }
 
     private Future<Resource> triggerDownloadFor(Resource resource, final Executor downloadExecutor) {

core/src/main/java/net/sourceforge/jnlp/cache/CacheUtil.java

@@ -234,27 +234,29 @@ public static String hex(String origName, String candidate) throws NoSuchAlgorit
      * @param title           name of the download
      */
     public static void waitForResources(final JNLPClassLoader jnlpClassLoader, final ResourceTracker tracker, final URL[] resources, final String title) {
-       // download first initial jar : so in case of client certificate, only 1 https client handshake is done 
+       // download first initial jar : so in case of client certificate, only 1 https client handshake is done
         boolean downloadInitialJarFirst = resources.length > 1 && resources[0].getProtocol().equals("https");
         try {
             final DownloadIndicator indicator = Optional.ofNullable(JNLPRuntime.getDefaultDownloadIndicator())
-                    .orElseGet(() -> new DummyDownloadIndicator());
+                    .orElseGet(DummyDownloadIndicator::new);
             final DownloadServiceListener listener = getDownloadServiceListener(jnlpClassLoader, title, resources, indicator);
             try {
                 for (URL url : resources) {
                     tracker.addDownloadListener(url, resources, listener);
                 }
-                if (downloadInitialJarFirst)
+                if (downloadInitialJarFirst) {
                     tracker.waitForResources(resources[0]);
+                }
                 // download all remaining ones
                 tracker.waitForResources(resources);
             } finally {
                 indicator.disposeListener(listener);
             }
         } catch (Exception ex) {
             LOG.error("Downloading of resources ended with error", ex);
-            if (downloadInitialJarFirst)
-               throw new RuntimeException(ex);
+            if (downloadInitialJarFirst) {
+                throw new RuntimeException(ex);
+            }
         }
     }