Practical JXTA II is a revision of the first edition containing new and updated examples covering the latest delivered features. This book is an introduction to JXTA, JXSE and P2P. A new chapter about NAT traversal has been added.

JXTA: Java P2P Programming provides an invaluable introduction to this new technology, filled with useful information and practical examples. It was created by members of the JXTA community, sharing their real-world experience to introduce developers to JXTA. It starts with the fundamentals of P2P and demonstrates how JXTA fulfills the P2P promise, then covers the essentials of JXTA including the protocols, the JXTA Shell, and groups. Later chapters include case studies demonstrating JXTA to synchronize data and to create distributed applications. Includes a foreward by Juan Carlos Soto, Group Marketing Manager for Project JXTA at Sun Microsystems and the jxta.org Open Source Community Manager.

A comprehensive, code-intensive guide to building commercial-quality peer-to-peer applications with JXTA and Java Tens of millions of people use peer-to-peer (P2P) applications such as KaZaA, AOL Instant Messenger, and Distributed.net. These applications harness the idle CPU cycles of their host computers to produce enormous databases of information, build powerful processing engines, and enable communication and file-sharing among users around the world. Previously, P2P applications have been built using proprietary technologies and protocols, forcing developers to start from scratch each time they write a new application. Now JXTA, an open source, P2P development technology, enables developers to build P2P applications using Java, XML, and other industry standards. With this invaluable book, Joseph Gradecki provides a practical guide to building peer-to-peer applications using Java. He provides detailed descriptions of the JXTA technologies and demonstrates how to build real-world applications. This book also includes: * Detailed descriptions of the JXTA specification and the Java reference implementation * The complete P2P development process, including how to build reusable application frameworks * Fully functional example applications, including a distributed computational engine that can utilize the idle CPU power of thousands of remote machines to solve complex problems, and a fault-tolerant, encrypted network storage system The companion Web site includes: * All the code listings and complete applications from the book * Links to additional JXTA and P2P resources

This book contains the papers presented at the 5th International Conference on Pr- tical Aspects of Knowledge Management organized by the Department of Knowledge Management, Institute of Computer Science and Business Informatics, University of Vienna. The event took place on December 02–03, 2004 in Vienna. The PAKM conference series offers a communication forum and meeting ground for practitioners and researchers engaged in developing and deploying advanced bu- ness solutions for the management of knowledge and intellectual capital. Contributions pursuing integrated approaches which consider organizational, technological and c- tural issues of knowledge management have been elected for presentation. PAKM is a forum for people to share their views, to exchange ideas, to develop new insights, and to envision completely new kinds of solutions for knowledge management problems. The accepted papers are of high quality and are not too specialized so that the main issues can be understood by someone outside the respective ?eld. This is crucial for an interdisciplinary exchange of ideas. Like its predecessors, PAKM 2004 featured two invited talks. It is a real joy seeing the visibility of the conferenceincrease and noting that kno- edge management researchers and practitioners from all over the world submitted - pers. This year, 163 papers and case studies were submitted, from which 48 were - cepted.

Java Message Service (JMS) represents a powerful solution for communicating between Java enterprise applications, software components, and legacy systems. In this authoritative tutorial and comprehensive reference, Sun's Java Message Service architects offer start-to-finish coverage of peer-to-peer JMS development with Java 2 Platform, Enterprise Edition, Release 1.3. JMS is now fully integrated into the J2EE platform -- and this is the first book to show how to make the most of JMS in the context of sophisticated J2EE application development. The authors begin by introducing the JMS API to developers who are new to it. Then, with the help of extensive programming examples, they demonstrate key JMS techniques for enabling applications to create, send, receive, and read messages, and for integrating with existing back office and enterprise systems. Coverage includes: consuming messages asynchronously with message-driven beans; producing messages from application clients; accessing entity beans from message-driven bean; producing messages from session beans; and much more. For all Java developers building applications that must communicate and share information.

Starting with Napster and Gnutella, peer-to-peer systems became an integrated part of the Internet fabric attracting millions of users. This book provides an introduction to the field. It draws together prerequisites from various fields, presents techniques and methodologies, and gives an overview on the applications of the peer-to-peer paradigm.

This authoritative Java security book is written by the architect of the Java security model. It chronicles J2EE v1.4 security model enhancements that will allow developers to build safer, more reliable, and more impenetrable programs.