diff --git a/src/main/java/org/apache/commons/fileupload/DefaultFileItem.java b/src/main/java/org/apache/commons/fileupload/DefaultFileItem.java
index c5e4c8c..980e411 100644
--- a/src/main/java/org/apache/commons/fileupload/DefaultFileItem.java
+++ b/src/main/java/org/apache/commons/fileupload/DefaultFileItem.java
@@ -43,11 +43,6 @@
     // ----------------------------------------------------------- Constructors
 
     /**
-     * The UID to use when serializing this instance.
-     */
-    private static final long serialVersionUID = 4088572813833518255L;
-
-    /**
      * Constructs a new <code>DefaultFileItem</code> instance.
      *
      * @param fieldName     The name of the form field.
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 6f8782c..090ed28 100644
--- a/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java
+++ b/src/main/java/org/apache/commons/fileupload/disk/DiskFileItem.java
@@ -76,11 +76,6 @@
     // ----------------------------------------------------- Manifest constants
 
     /**
-     * The UID to use when serializing this instance.
-     */
-    private static final long serialVersionUID = 2237570099615271025L;
-
-    /**
      * Default content charset to be used when no explicit charset
      * parameter is provided by the sender. Media subtypes of the
      * "text" type are defined to have a default charset value of
@@ -155,11 +150,6 @@
     private transient File tempFile;
 
     /**
-     * File to allow for serialization of the content of this item.
-     */
-    private File dfosFile;
-
-    /**
      * The file items headers.
      */
     private FileItemHeaders headers;
diff --git a/src/test/java/org/apache/commons/fileupload/DiskFileItemSerializeTest.java b/src/test/java/org/apache/commons/fileupload/DiskFileItemSerializeTest.java
index c352f68..dccdd11 100644
--- a/src/test/java/org/apache/commons/fileupload/DiskFileItemSerializeTest.java
+++ b/src/test/java/org/apache/commons/fileupload/DiskFileItemSerializeTest.java
@@ -32,7 +32,6 @@
 
 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
 import org.apache.commons.io.FileUtils;
-import org.apache.commons.io.IOUtils;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -88,14 +87,14 @@
         compareBytes("Initial", item.get(), testFieldValueBytes);
         item.delete();
     }
-    
+
     /**
      * Helper method to test creation of a field.
      */
     private void testInMemoryObject(byte[] testFieldValueBytes) {
         testInMemoryObject(testFieldValueBytes, REPO);
     }
-    
+
     /**
      * Test creation of a field for which the amount of data falls below the
      * configured threshold.
@@ -135,7 +134,7 @@
 
         item.delete();
     }
-    
+
     /**
      * Test serialization and deserialization when repository is not null.
      */
@@ -145,7 +144,7 @@
         byte[] testFieldValueBytes = createContentBytes(threshold);
         testInMemoryObject(testFieldValueBytes, REPO);
     }
-    
+
     /**
      * Test deserialization fails when repository is not valid.
      */
@@ -157,7 +156,7 @@
         FileItem item = createFileItem(testFieldValueBytes, repository);
         deserialize(serialize(item));
     }
-    
+
     /**
      * Test deserialization fails when repository contains a null character.
      */
@@ -171,17 +170,6 @@
     }
 
     /**
-     * Compare FileItem's (except the byte[] content)
-     */
-    private void compareFileItems(FileItem origItem, FileItem newItem) {
-        assertTrue("Compare: is in Memory",   origItem.isInMemory()   == newItem.isInMemory());
-        assertTrue("Compare: is Form Field",  origItem.isFormField()  == newItem.isFormField());
-        assertEquals("Compare: Field Name",   origItem.getFieldName(),   newItem.getFieldName());
-        assertEquals("Compare: Content Type", origItem.getContentType(), newItem.getContentType());
-        assertEquals("Compare: File Name",    origItem.getName(),        newItem.getName());
-    }
-
-    /**
      * Compare content bytes.
      */
     private void compareBytes(String text, byte[] origBytes, byte[] newBytes) {
@@ -233,14 +221,14 @@
         return item;
 
     }
-    
+
     /**
      * Create a FileItem with the specfied content bytes.
      */
     private FileItem createFileItem(byte[] contentBytes) {
         return createFileItem(contentBytes, REPO);
     }
-    
+
     /**
      * Do serialization
      */
@@ -252,7 +240,7 @@
         oos.close();
         return baos;
     }
-    
+
     /**
      * Do deserialization
      */
@@ -266,28 +254,4 @@
 
         return result;
     }
-    
-    /**
-     * Do serialization and deserialization.
-     */
-    private Object serializeDeserialize(Object target) {
-        // Serialize the test object
-        ByteArrayOutputStream baos = null;
-        try {
-            baos = serialize(target);
-        } catch (Exception e) {
-            fail("Exception during serialization: " + e);
-        }
-        
-        // Deserialize the test object
-        Object result = null;
-        try {
-            result = deserialize(baos);
-        } catch (Exception e) {
-            fail("Exception during deserialization: " + e);
-        }
-        IOUtils.closeQuietly(baos);
-        return result;
-    }
-
 }