Why do developers favor Java technology for developing Web services? Java technology is the most ready platform for Web services and service-oriented architectures, complete with interoperability, platform independence, and security built-in. This tutorial will review several Java technologies for Web services standards that have been developed or are currently being updated through the Java Community Process sm (JCP sm) program as JSRs - Java API for XML-based RPC (JAX-RPC), Java API for XML Binding (JAXB), Java API for XML Processing (JAXP), Java API for XML Registries (JAXR), JSR 109, Implementing Java Web Services, JSR 172, J2ME Web Services and JSR 173, The Streaming API for XML (StAX). Also to be highlighted: JSR 244, Java 2 Platform, Enterprise, Edition 5.0 Specification, JSR 181,Web Services Metadata for the Java Plaform, JSR 208, and Java Business Integration.