Refactor using new Supplier API

IOUtils.toString(IOSupplier<InputStream>, Charset[,
IOSupplier<String>]).

Refactor using new Supplier API
org.apache.commons.io.file.PathUtils.copy(IOSupplier<InputStream>, Path,
CopyOption...).

Author: garydgregory

src/changes/changes.xml

@@ -474,6 +474,12 @@ The <action> type attribute can be add,update,fix,remove.
       <action dev="ggregory" type="add" due-to="Gary Gregory, maxxedev">
         Add PollingQueueInputStream and TakingQueueInputStream to replace QueueInputStream. See also #447.
       </action>
+      <action dev="ggregory" type="add" due-to="Gary Gregory, maxxedev">
+        Refactor using new Supplier API IOUtils.toString(IOSupplier&lt;InputStream&gt;, Charset[, IOSupplier&lt;String&gt;]).
+      </action>
+      <action dev="ggregory" type="add" due-to="Gary Gregory, maxxedev">
+        Refactor using new Supplier API org.apache.commons.io.file.PathUtils.copy(IOSupplier&lt;InputStream&gt;, Path, CopyOption...).
+      </action>
       <!-- UPDATE -->
       <action dev="kinow" type="update" due-to="Dependabot, Gary Gregory">
         Bump actions/cache from 2.1.6 to 3.0.10 #307, #337, #393.

src/main/java/org/apache/commons/io/FileUtils.java

@@ -1059,11 +1059,9 @@ public static void copyToFile(final InputStream inputStream, final File file) th
      * @throws IOException if an IO error occurs during copying
      */
     public static void copyURLToFile(final URL source, final File destination) throws IOException {
-        try (InputStream stream = source.openStream()) {
-            final Path path = destination.toPath();
-            PathUtils.createParentDirectories(path);
-            Files.copy(stream, path, StandardCopyOption.REPLACE_EXISTING);
-        }
+        final Path path = destination.toPath();
+        PathUtils.createParentDirectories(path);
+        PathUtils.copy(source::openStream, path, StandardCopyOption.REPLACE_EXISTING);
     }
 
     /**
@@ -2597,9 +2595,7 @@ public static String readFileToString(final File file) throws IOException {
      * @since 2.3
      */
     public static String readFileToString(final File file, final Charset charsetName) throws IOException {
-        try (InputStream inputStream = Files.newInputStream(file.toPath())) {
-            return IOUtils.toString(inputStream, Charsets.toCharset(charsetName));
-        }
+        return IOUtils.toString(() -> Files.newInputStream(file.toPath()), Charsets.toCharset(charsetName));
     }
 
     /**