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 ABSTRACT
In this paper we present how to conduct performance related analyses of component-based applications and how to derive call dependencies between software components in the TestEJB framework. This framework facilitates an interceptor-based approach to measure selected properties of components following the Enterprise JavaBeans specification. Amongst its advantages are the lightweightness and transparency to the application as the measuring sensors simply gather timestamps and additional metadata at selected positions inside a component-based application. Using basic database support, it is possible to generate invocation trees and calculate response- and run-times of a component and its methods while accounting for the overhead introduced by the framework itself. Therefore, the developer is offered a useful tool for benchmarking selected components as well as monitoring the interactions of components with the application server and amongst themselves.
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