This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I believe those are in standard documentation of jdk1.4, and it is written there that the package is since 1.4 . If you are forced to use java 1.3 , you could download xerces parser from Apache foundation, and put the xerces jar in the classpath. U have there also the interfaces u need