In this manual, the term default is used in its broader sense, and not in the specific way it is used in the XML 1.0 standard. A default value is an initial value or the value used if no value is present in the XML file. A default value can be any of the following:
A value supplied by the XML parser when no value is found in the domain.xml file. The relevant element or attribute is optional.
A value supplied by the GlassFish Server when no value is found in the domain.xml file and the XML parser doesn’t provide a value. The relevant element or attribute is optional.
An initial value supplied when the domain.xml file is created. The relevant element or attribute might or might not be optional.
Removal of initial values in domain.xml is not recommended because attributes may be left without values or values may revert to internal defaults. Explicitly changing values is recommended.
Only values that differ from internal defaults are included in the domain.xml file.