The J2EE™ Tutorial Second Edition

Handling Errors with the Nonvalidating Parser

The parser can generate three kinds of errors: a fatal error, an error, and a warning. In this exercise, you'll see how the parser handles a fatal error.

This version of the Echo program uses the nonvalidating parser. So it can't tell whether the XML document contains the right tags or whether those tags are in the right sequence. In other words, it can't tell you whether the document is valid. It can, however, tell whether or not the document is well formed.

In this section, you'll modify the slide-show file to generate various kinds of errors and see how the parser handles them. You'll also find out which error conditions are ignored by default, and you'll see how to handle them.

Note

The XML file ...