Using XML with Legacy Business Applications

Error Handling

Both JAXP and the Xerces DOM implementation follow the basic Java architecture for exception handling. Consistent with that architecture, most of the code in the main method lies within a try block that is followed by various catch blocks. JAXP implements an interesting overall parsing architecture in that it allows you to use a different underlying XML parser than the default Xerces implementation. One way JAXP does this is by requiring such pluggable parsers to use the SAX classes related to exception handling. So, whether or not your parser is actually a SAX parser under the hood, you need a SAX exception handler if you want to handle parsing exceptions. The JAXP documentation (in Javadoc format) has this to say about declaring ...