diff --git a/src/main/java/org/apache/commons/fileupload/FileItem.java b/src/main/java/org/apache/commons/fileupload/FileItem.java
index 484719f..99203b3 100644
--- a/src/main/java/org/apache/commons/fileupload/FileItem.java
+++ b/src/main/java/org/apache/commons/fileupload/FileItem.java
@@ -46,7 +46,7 @@
  * @version $Id$
  * @since 1.3 additionally implements FileItemHeadersSupport
  */
-public interface FileItem extends Serializable, FileItemHeadersSupport {
+public interface FileItem extends FileItemHeadersSupport {
 
     // ------------------------------- Methods from javax.activation.DataSource
 
diff --git a/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java b/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java
index cc97b42..3cc45a0 100644
--- a/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java
+++ b/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java
@@ -599,76 +599,6 @@
                       Boolean.valueOf(isFormField()), getFieldName());
     }
 
-    // -------------------------------------------------- Serialization methods
-
-    /**
-     * Writes the state of this object during serialization.
-     *
-     * @param out The stream to which the state should be written.
-     *
-     * @throws IOException if an error occurs.
-     */
-    private void writeObject(ObjectOutputStream out) throws IOException {
-        // Read the data
-        if (dfos.isInMemory()) {
-            cachedContent = get();
-        } else {
-            cachedContent = null;
-            dfosFile = dfos.getFile();
-        }
-
-        // write out values
-        out.defaultWriteObject();
-    }
-
-    /**
-     * Reads the state of this object during deserialization.
-     *
-     * @param in The stream from which the state should be read.
-     *
-     * @throws IOException if an error occurs.
-     * @throws ClassNotFoundException if class cannot be found.
-     */
-    private void readObject(ObjectInputStream in)
-            throws IOException, ClassNotFoundException {
-        // read values
-        in.defaultReadObject();
-
-        /* One expected use of serialization is to migrate HTTP sessions
-         * containing a DiskFileItem between JVMs. Particularly if the JVMs are
-         * on different machines It is possible that the repository location is
-         * not valid so validate it.
-         */
-        if (repository != null) {
-            if (repository.isDirectory()) {
-                // Check path for nulls
-                if (repository.getPath().contains("\0")) {
-                    throw new IOException(format(
-                            "The repository [%s] contains a null character",
-                            repository.getPath()));
-                }
-            } else {
-                throw new IOException(format(
-                        "The repository [%s] is not a directory",
-                        repository.getAbsolutePath()));
-            }
-        }
-
-        OutputStream output = getOutputStream();
-        if (cachedContent != null) {
-            output.write(cachedContent);
-        } else {
-            FileInputStream input = new FileInputStream(dfosFile);
-            IOUtils.copy(input, output);
-            IOUtils.closeQuietly(input);
-            dfosFile.delete();
-            dfosFile = null;
-        }
-        output.close();
-
-        cachedContent = null;
-    }
-
     /**
      * Returns the file item headers.
      * @return The file items headers.