HydraExpress Components : Servlet Development Guide : PART IV Appendices : Appendix B, Configuration Quick Reference
Appendix B, Configuration Quick Reference
Conventions
The tables in this appendix use the following conventions for names and contents:
Table 4 – Configuration reference conventions 
Conventions
Purpose
Example
normal text
Required element names,
required attribute names.
server
numThreads
(parentheses)
Optional element names,
optional attribute names
(config-param)
(maxThreads)
italic
Character data
HttpErrorCode