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Debugger interface pro Java PathFinder model checker / Debugger interface for Java PathFinder model checkerVávra, Štěpán January 2014 (has links)
The aim of this work is to integrate Java PathFinder into Java Platform Debugger Architecture. That is, to allow using Java PathFinder instead of a common Java Virtual Machine for the purpose of debugging Java applications in any modern Java Integrated Development Environment with all its advantages such as various kinds of breakpoints, direct stepping in opened source files, and call stack and object inspection. The resulting work provides users with all the features they are used to while debugging Java applications. None of this requires any external tools, editors or a complicated setup. Therefore, users are able to view, debug and understand the program state while replaying an error trace in Java PathFinder. The key part of the study is an implementation of the Java Debug Wire Protocol Agent as an extension for Java PathFinder. That makes JPF more complete as a Virtual Machine in the eyes of the community and the Java users in general. Powered by TCPDF (www.tcpdf.org)
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Monitorování zaměstnanců s telefonem Android / Monitoring of Employees with Android PhoneKužel, Jan January 2013 (has links)
This paper deals with the monitoring of selected activities on portable mobile devices running Android and subsequent processing of data using a web application. Phone calls, text messages and location are meant by these activities. It introduces an existing application which serves to monitor. It also includes the analysis of monitoring capabilities of selected activities on mentioned devices. Then it includes a specification, design, implementation, demonstration and testing of a new system designed to monitoring activities and data processing.
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An?lise de desempenho de sistemas distribu?dos de grande porte na plataforma JavaLima, Gleydson de Azevedo Ferreira 02 February 2007 (has links)
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Previous issue date: 2007-02-02 / The lava Platform is increasing1y being adopted in the development of distributed sys?tems with higb user demando This kind of application is more complex because it needs beyond attending the functional requirements, to fulfil1 the pre-established performance parameters. This work makes a study on the Java Vutual Machine (JVM), approaching its intemal aspects and exploring the garbage collection strategies existing in the literature and used by the NM. It also presents a set of tools that helps in the job of optimizing applications and others that help in the monitoring of applications in the production envi?ronment. Doe to the great amount of technologies that aim to solve problems which are common to the application layer, it becomes difficult to choose the one with best time response and less memory usage. This work presents a brief introduction to each one of tbe possible technologies and realize comparative tests through a statistical analysis of the response time and garbage collection activity random variables. The obtained results supply engineers and managers with a subside to decide which technologies to use in large applications through the knowledge of how they behave in their environments and the amount of resources that they consume. The relation between the productivity of the technology and its performance is also considered ao important factor in this choice / A plataforma Java vem sendo crescentemente adotada no desenvolvimento de siste?mas distribu?dos de alta demanda de usu?rios. Este tipo de aplica??o ? mais complexa pois necessita al?m de atender os requisitos funcionais cumprir os par?metros de desem?penho pr?-estabelecidos. Este trabalho realiza um estudo da m?quina virtual lava (NM) abordando seus aspectos internos e explorando as pol?ticas de coleta de lixo existentes na literatura e as usadas pela JVM. Apresenta tamb?m um conjunto de ferramentas que auxiliam Da tarefa de otimizar aplica??es e outras que auxiliam no monitoramento das aplica??es em produ??o. Diante da grande quantidade de tecnologias que se apresentam para solucionar pro?blemas inerentes ?s camadas das aplica??es, toma-se dif?cil realizar escolha daquela que possui o melhor tempo de resposta e o menor uso de mem?ria. O trabalho apresenta um breve referencial te?rico de cada uma das poss?veis tecnologias e realiza testes compara?tivos atrav?s de uma an?lise estat?stica da vari?vel aleat?ria do tempo de resposta e das atividades de coleta de lixo. Os resultados obtidos fornecem um subs?dio para engenheiros e gerentes decidirem quais tecnologias utilizarem em aplica??es de grande porte atrav?s do conhecimento de como elas se comportam nestes ambientes e a quantidade de recursos que consomem. A rela??o entre produtividade da tecnologia e seu desempenho tamb?m ? considerada como um fator importante nesta escolha
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