This class is thrown when an attempt is made to add to an attribute a value that conflicts with the attribute's schema definition. This could happen, for example, if attempting to add an attribute with no value when the attribute is required to have at least one value, or if attempting to add more than one value to a single valued-attribute, or if attempting to add a value that conflicts with the syntax of the attribute.

Synchronization and serialization issues that apply to NamingException apply directly here.