Use varargs in a few more places.

Author: Gary Gregory

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

@@ -550,7 +550,7 @@ protected void handleDirectoryStart(final File directory, final int depth, final
      * @throws IOException if an I/O Error occurs
      * @since 2.0
      */
-    protected File[] filterDirectoryContents(final File directory, final int depth, final File[] files) throws
+    protected File[] filterDirectoryContents(final File directory, final int depth, final File... files) throws
             IOException {
         return files;
     }

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

@@ -681,7 +681,7 @@ public static Iterator<File> iterateFilesAndDirs(final File directory, final IOF
      * @param extensions an array of extensions. Format: {"java", "xml"}
      * @return an array of suffixes. Format: {".java", ".xml"}
      */
-    private static String[] toSuffixes(final String[] extensions) {
+    private static String[] toSuffixes(final String... extensions) {
         final String[] suffixes = new String[extensions.length];
         for (int i = 0; i < extensions.length; i++) {
             suffixes[i] = "." + extensions[i];
@@ -924,7 +924,7 @@ static String decodeUrl(final String url) {
      * @throws IllegalArgumentException if any file is incorrectly encoded
      * @since 1.1
      */
-    public static File[] toFiles(final URL[] urls) {
+    public static File[] toFiles(final URL... urls) {
         if (urls == null || urls.length == 0) {
             return EMPTY_FILE_ARRAY;
         }
@@ -953,7 +953,7 @@ public static File[] toFiles(final URL[] urls) {
      * @throws IOException          if a file cannot be converted
      * @throws NullPointerException if the parameter is null
      */
-    public static URL[] toURLs(final File[] files) throws IOException {
+    public static URL[] toURLs(final File... files) throws IOException {
         final URL[] urls = new URL[files.length];
 
         for (int i = 0; i < urls.length; i++) {

src/main/java/org/apache/commons/io/filefilter/NameFileFilter.java

@@ -83,7 +83,7 @@ public NameFileFilter(final String name, final IOCase caseSensitivity) {
      * @param names  the names to allow, must not be null
      * @throws IllegalArgumentException if the names array is null
      */
-    public NameFileFilter(final String[] names) {
+    public NameFileFilter(final String... names) {
         this(names, null);
     }
 

src/main/java/org/apache/commons/io/filefilter/PrefixFileFilter.java

@@ -87,7 +87,7 @@ public PrefixFileFilter(final String prefix, final IOCase caseSensitivity) {
      * @param prefixes  the prefixes to allow, must not be null
      * @throws IllegalArgumentException if the prefix array is null
      */
-    public PrefixFileFilter(final String[] prefixes) {
+    public PrefixFileFilter(final String... prefixes) {
         this(prefixes, IOCase.SENSITIVE);
     }
 

src/main/java/org/apache/commons/io/filefilter/SuffixFileFilter.java

@@ -88,7 +88,7 @@ public SuffixFileFilter(final String suffix, final IOCase caseSensitivity) {
      * @param suffixes  the suffixes to allow, must not be null
      * @throws IllegalArgumentException if the suffix array is null
      */
-    public SuffixFileFilter(final String[] suffixes) {
+    public SuffixFileFilter(final String... suffixes) {
         this(suffixes, IOCase.SENSITIVE);
     }
 

src/main/java/org/apache/commons/io/filefilter/WildcardFileFilter.java

@@ -90,7 +90,7 @@ public WildcardFileFilter(final String wildcard, final IOCase caseSensitivity) {
      * @param wildcards  the array of wildcards to match
      * @throws IllegalArgumentException if the pattern array is null
      */
-    public WildcardFileFilter(final String[] wildcards) {
+    public WildcardFileFilter(final String... wildcards) {
         this(wildcards, IOCase.SENSITIVE);
     }
 

src/main/java/org/apache/commons/io/filefilter/WildcardFilter.java

@@ -74,7 +74,7 @@ public WildcardFilter(final String wildcard) {
      * @param wildcards  the array of wildcards to match
      * @throws IllegalArgumentException if the pattern array is null
      */
-    public WildcardFilter(final String[] wildcards) {
+    public WildcardFilter(final String... wildcards) {
         if (wildcards == null) {
             throw new IllegalArgumentException("The wildcard array must not be null");
         }

src/main/java/org/apache/commons/io/monitor/FileEntry.java

@@ -162,7 +162,7 @@ public FileEntry[] getChildren() {
      *
      * @param children This directory's files, may be null
      */
-    public void setChildren(final FileEntry[] children) {
+    public void setChildren(final FileEntry... children) {
         this.children = children;
     }