diff -r 6d0add6ad778 -r 23505e6ea22d src/share/classes/com/sun/tools/classfile/Field.java
--- a/src/share/classes/com/sun/tools/classfile/Field.java	Thu Jul 30 10:30:34 2009 +0100
+++ b/src/share/classes/com/sun/tools/classfile/Field.java	Thu Jul 30 07:48:24 2009 -0700
@@ -50,6 +50,10 @@
         this.attributes = attributes;
     }
 
+    public int byteLength() {
+        return 6 + attributes.byteLength();
+    }
+
     public String getName(ConstantPool constant_pool) throws ConstantPoolException {
         return constant_pool.getUTF8Value(name_index);
     }