String description = "New Value";
Attributes attributes = LdifUtils.createAttributes( "objectClass: top", "objectClass: organizationalUnit",
"ou: Test", "description: Old Value" );
DirContext ctx = ctxRoot.createSubcontext( dn, attributes );
assertNotNull( ctx );
ModificationItem[] mods = new ModificationItem[1];
mods[0] = new ModificationItem( DirContext.REPLACE_ATTRIBUTE, new BasicAttribute( "description", description ) );