I use this bug id (138) as an umbrella for a list of 
bugfixes/improvements for the DSML gateway.

Here is the detail file by file:
. DSMLAbandonOperation
  -> error handling : abandon Id is now mapped to an unwilling to
perform error (was IOException)

. DSMLDeleteOperation
  -> added matchedDN in response (was missing)

. DSMLServlet
  -> added schema validation during JAXB parsing
  -> dropped usage of an internal JAXB class (useless and risky as this
class was renamed in Java 6)
  -> removed doGet method (useless/cleanup)
  -> check that if authorization is tagged in http request (bindDN,
passwd) are both provided and valid
  -> better error handling : safer processing with appropriate error
messages instead of global try/catch with generic message
    - in case of parsing error, the request in reparsed with SAX
instead of JAXB in order to extract requestID and build appropriate response
    - in case of processing exception, a mapping (hard-coded) is
performed and set in the error response message
  -> fixed processing onError: default behaviour was to stop once a
request failed but the specification defines to continue

. DSMLSearchOperation
  -> added missing filters : "and", "or", "not", "substrings",
"greaterOrEqual", "lessOrEqual", "approxMatch", "extensibleMatch"
("equalityMatch" and "present" were provided)
  -> fixed ability to return attribute names only (typesOnly)

. build.xml
  -> added schema in DSML war file to enable JAXB schema validation