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The behavior of a software system often depends on how that system is configured. Small configuration errors can lead to hard-to-diagnose undesired behaviors. We present a technique (and its tool implementation, called ConfDiagnoser) to identify the root cause of a configuration error — a single configuration option that can be changed to produce desired behavior. Our technique uses static analysis,...
This paper presents ConfDiagnoser, an automated configuration error diagnosis tool for Java software. Conf-Diagnoser identifies the root cause of a configuration error — a single configuration option that can be changed to produce desired behavior. It uses static analysis, dynamic profiling, and statistical analysis to link the undesired behavior to specific configuration options. ConfDiagnoser differs...
Distributed software systems are characterized by increasing autonomy. They often have the capability to sense the environment and react to it, discover the presence of other systems and take advantage of their services, adapt and re-configure themselves in accordance with the internal as well as the global state. Testing this kind of systems is challenging, and systematic and automated approaches...
The paper describes an annotation-based Java framework for supporting transactional Web services. We provide a framework for automated management of compensations in business activity type extended transactions. Unlike rollbacks in traditional ACID transactions, these usually require substantial implementation effort by business programmers. Our annotations provide a flexible, intuitive and easy to...
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