[IO-664] org.apache.commons.io.FileUtils.copyURLToFile(*) open but do

not close streams.

Author: garydgregory

src/changes/changes.xml

@@ -204,6 +204,9 @@ The <action> type attribute can be add,update,fix,remove.
       <action issue="IO-662" dev="ggregory" type="add" due-to="Adam Retter, Gary Gregory">
          Refactor ByteArrayOutputStream into synchronized and unsynchronized versions #108.
       </action>
+      <action issue="IO-664" dev="ggregory" type="fix" due-to="Gary Gregory">
+         org.apache.commons.io.FileUtils.copyURLToFile(*) open but do not close streams.
+      </action>
     </release>
 
     <release version="2.6" date="2017-10-15" description="Java 7 required, Java 9 supported.">

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

@@ -1022,7 +1022,9 @@ public static void copyToFile(final InputStream source, final File destination)
      * @throws IOException if an IO error occurs during copying
      */
     public static void copyURLToFile(final URL source, final File destination) throws IOException {
-        copyInputStreamToFile(source.openStream(), destination);
+        try (final InputStream stream = source.openStream()) {
+            copyInputStreamToFile(stream, destination);
+        }
     }
 
     /**
@@ -1046,11 +1048,13 @@ public static void copyURLToFile(final URL source, final File destination) throw
      * @since 2.0
      */
     public static void copyURLToFile(final URL source, final File destination,
-                                     final int connectionTimeout, final int readTimeout) throws IOException {
+        final int connectionTimeout, final int readTimeout) throws IOException {
         final URLConnection connection = source.openConnection();
         connection.setConnectTimeout(connectionTimeout);
         connection.setReadTimeout(readTimeout);
-        copyInputStreamToFile(connection.getInputStream(), destination);
+        try (final InputStream stream = connection.getInputStream()) {
+            copyInputStreamToFile(stream, destination);
+        }
     }
 
     /**