1 files changed, 4 insertions, 4 deletions
diff --git a/src/test/java/org/apache/commons/io/DirectoryWalkerTest.java b/src/test/java/org/apache/commons/io/DirectoryWalkerTest.java
index 5ac3aa9c..ccb5c110 100644
--- a/src/test/java/org/apache/commons/io/DirectoryWalkerTest.java
+++ b/src/test/java/org/apache/commons/io/DirectoryWalkerTest.java
@@ -90,7 +90,7 @@ public class DirectoryWalkerTest {
      * Test DirectoryWalker implementation that always returns false
      * from handleDirectoryStart()
      */
-    private static class TestFalseFileFinder extends TestFileFinder {
+    private static final class TestFalseFileFinder extends TestFileFinder {
 
         protected TestFalseFileFinder(final FileFilter filter, final int depthLimit) {
             super(filter, depthLimit);
@@ -143,7 +143,7 @@ public class DirectoryWalkerTest {
      * Test DirectoryWalker implementation that finds files in a directory hierarchy
      * applying a file filter.
      */
-    private static class TestFileFinderString extends DirectoryWalker<String> {
+    private static final class TestFileFinderString extends DirectoryWalker<String> {
 
         protected TestFileFinderString(final FileFilter filter, final int depthLimit) {
             super(filter, depthLimit);
@@ -234,12 +234,12 @@ public class DirectoryWalkerTest {
     private static final File outputDir    = new File(ioDir, "output");
     private static final File[] dirs       = {orgDir, apacheDir, commonsDir, ioDir, outputDir};
     // Files
-    private static final File filenameUtils = new File(ioDir, "FilenameUtils.java");
+    private static final File fileNameUtils = new File(ioDir, "FilenameUtils.java");
 
     private static final File ioUtils       = new File(ioDir, "IOUtils.java");
     private static final File proxyWriter   = new File(outputDir, "ProxyWriter.java");
     private static final File nullStream    = new File(outputDir, "NullOutputStream.java");
-    private static final File[] ioFiles     = {filenameUtils, ioUtils};
+    private static final File[] ioFiles     = {fileNameUtils, ioUtils};
     private static final File[] outputFiles = {proxyWriter, nullStream};
 
     // Filters