This book constitutes the thoroughly refereed postproceedings of the International Workshop on Scientific Engineering for Distributed Java Applications, FIDJI 2002, held in Luxembourg-Kirchberg, Luxembourg in November 2002. The 16 revised full papers presented together with a keynote paper and 3 abstracts were carefully selected from 33 submissions during two rounds of reviewing and improvement. Among the topics addressed are Java coordination, Web service architectures, transaction models, CORBA-based distributed systems, mobile objects, Java group toolkits, distributed process management systems, active objects in J2EE, Java frameworks, Jini, component-based distributed applications, Java middleware, fault-tolerant mobile systems.