diff --git a/tools/common/src/main/java/org/apache/cxf/tools/common/ClassUtils.java b/tools/common/src/main/java/org/apache/cxf/tools/common/ClassUtils.java
index 8dd2bb0d729..12ed3327fad 100644
--- a/tools/common/src/main/java/org/apache/cxf/tools/common/ClassUtils.java
+++ b/tools/common/src/main/java/org/apache/cxf/tools/common/ClassUtils.java
@@ -21,9 +21,9 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
 import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Iterator;
@@ -79,9 +79,8 @@ public void compile(ToolContext context) throws ToolException {
             String dirName = fileName.substring(0, fileName.lastIndexOf(File.separator) + 1);
 
             String path = outPutDir + File.separator + dirName;
-            if (!dirSet.contains(path)) {
+            if (dirSet.add(path)) {
 
-                dirSet.add(path);
                 File file = new File(path);
                 if (file.isDirectory() && file.list() != null) {
                     for (String str : file.list()) {
@@ -89,17 +88,16 @@ public void compile(ToolContext context) throws ToolException {
                             fileList.add(path + str);
                         } else {
                             // copy generated xml file or others to class directory
-                            File otherFile = new File(path + File.separator + str);
+                            Path otherFile = Paths.get(path, str);
                             String suffix = "xml";
-                            if (otherFile.isFile()
+                            if (Files.isReadable(otherFile)
                                 && str.regionMatches(true, str.length() - suffix.length(), suffix, 0, suffix.length())
                                 && context.get(ToolConstants.CFG_CLASSDIR) != null) {
                                 String targetDir = (String)context.get(ToolConstants.CFG_CLASSDIR);
 
-                                File targetFile = new File(targetDir + File.separator + dirName
-                                                           + File.separator + str);
                                 try {
-                                    copyXmlFile(otherFile, targetFile);
+                                    Files.copy(otherFile,
+                                        Files.createDirectories(Paths.get(targetDir, dirName)).resolve(str));
 
                                 } catch (IOException e) {
                                     Message msg = new Message("FAIL_TO_COPY_GENERATED_RESOURCE_FILE", LOG);
@@ -126,26 +124,4 @@ public void compile(ToolContext context) throws ToolException {
         }
     }
 
-    private void copyXmlFile(File from, File to) throws ToolException, IOException {
-
-        String dir = to.getCanonicalPath()
-                .substring(0, to.getCanonicalPath().lastIndexOf(File.separator));
-        File dirFile = new File(dir);
-        dirFile.mkdirs();
-        try (InputStream input = Files.newInputStream(from.toPath());
-            OutputStream output = Files.newOutputStream(to.toPath())) {
-            byte[] b = new byte[1024 * 3];
-            int len = 0;
-            while (len != -1) {
-                len = input.read(b);
-                if (len != -1) {
-                    output.write(b, 0, len);
-                }
-            }
-            output.flush();
-        } catch (Exception e) {
-            Message msg = new Message("FAIL_TO_COPY_GENERATED_RESOURCE_FILE", LOG);
-            throw new ToolException(msg, e);
-        }
-    }
 }
diff --git a/tools/common/src/test/java/org/apache/cxf/tools/common/ProcessorTestBase.java b/tools/common/src/test/java/org/apache/cxf/tools/common/ProcessorTestBase.java
index a8e4a7e896e..77d8b6b645f 100644
--- a/tools/common/src/test/java/org/apache/cxf/tools/common/ProcessorTestBase.java
+++ b/tools/common/src/test/java/org/apache/cxf/tools/common/ProcessorTestBase.java
@@ -58,12 +58,12 @@
 
 public class ProcessorTestBase {
 
-    public static final List<String> DEFAULT_IGNORE_ATTR = Arrays.asList(new String[]{"attributeFormDefault",
-                                                                                      "elementFormDefault",
-                                                                                      "form",
-                                                                                      "version",
-                                                                                      "part@name"});
-    public static final List<String> DEFAULT_IGNORE_TAG = Arrays.asList(new String[]{"sequence"});
+    public static final List<String> DEFAULT_IGNORE_ATTR = Arrays.asList("attributeFormDefault",
+                                                                         "elementFormDefault",
+                                                                         "form",
+                                                                         "version",
+                                                                         "part@name");
+    public static final List<String> DEFAULT_IGNORE_TAG = Arrays.asList("sequence");
 
     //CHECKSTYLE:OFF
     @Rule