code: protected ByteVector write(
          final ClassWriter cw,
          final byte[] code,
          final int len,
          final int maxStack,
          final int maxLocals)
      {
          ByteVector v = new ByteVector();
          v.data = value;
          v.length = value.length;
          return v;
      }
docs: Returns the byte array form of this attribute.
  
  @param cw the class to which this attribute must be added. This parameter
  can be used to add to the constant pool of this class the items
  that corresponds to this attribute.
  @param code the bytecode of the method corresponding to this code
  attribute, or <tt>null</tt> if this attribute is not a code
  attributes.
  @param len the length of the bytecode of the method corresponding to this
  code attribute, or <tt>null</tt> if this attribute is not a code
  attribute.
  @param maxStack the maximum stack size of the method corresponding to
  this code attribute, or -1 if this attribute is not a code
  attribute.
  @param maxLocals the maximum number of local variables of the method
  corresponding to this code attribute, or -1 if this attribute is
  not a code attribute.
  @return the byte array form of this attribute.