High Quality Content by WIKIPEDIA articles! In Java Platform, Enterprise Edition, a web container "implements the web component contract of the J2EE architecture". This contract specifies a runtime environment for web components that includes security, concurrency, lifecycle management, transaction, deployment, and other services. A web container provides the same services as a JSP container as well as a federated view of the Java EE (formerly J2EE) platform APIs. In computer science, the qualifier run time, run-time, runtime, or execution time refers most literally to the time during which a program is running (executing). It contrasts to other phases of program development and use, such as compile time, link time, load time, etc. Closely linked to this most basic sense is the state of the entire system on which the program is running, which affects the program's execution and which varies between instances. Therefore "runtime" also refers to the broader idea of a single installation of a given software or computer program on a single computer, and how that particular instance behaves while running.

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