Which are the Java JAXP XPath implementations available?

Which are the Java JAXP XPath implementations available? The default implementation, Xalan (shipped with the JVM), is开发者_如何转开发 very slow to evaluate XPath expressions, so, I'm looking for a faster implementation.

I've tried Saxon as Steven D. Majewski has recommended and it worked very well. The performance is far superior to Xalan (the default implementation shipped with the JVM). Also, by doing some research I've found that the GNU JAXP project has a implementation for the JAXP XPath API, although I’ve not tested it.

You can take a look at VTD