SpringSource Unveils Its OSGi-Supported App Server - InformationWeek
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SpringSource Unveils Its OSGi-Supported App Server

The SpringSource dm Server aims to simplify the deployment environment the way it has done in the development environment.

In May, SpringSource announced its SpringSource Application Platform 1.0, an application server on which you could run a Java application after building it with the Spring Framework. Last week, it delivered the first piece, the SpringSource dm Server.

The open source Spring Framework enjoys a strong position among Java developers because of its ability to simplify parts of the complex Java development process. After building a Spring application, however, SpringSource CEO Rod Johnson announced in May that it should be simpler to deploy it, adding that SpringSource would seek to simplify the deployment environment the way it had done in the development environment.

SpringSource dm Server is his company's first concrete step in that direction. SpringSource has seized on specifications that have emerged from OSGi, a vendor consortium, to make it easier for Java modules to work together without knowing very much about each other. Sun, IBM, Oracle, Red Hat, and SpringSource and others are members of OSGi;

The dm Server "has been designed from the ground up to provide a powerful, lightweight, and fast alternative" to commercial application servers, said Peter Cooper-Ellis, senior VP of engineering and former head of the WebLogic engineering team at BEA Systems, in a statement announcing the availability of dm Server. It may be downloaded under the GPLv3 open source license from the SpringSource.com Web site.

The dm Server capitalizes on OSGi standards by dynamically updating Java modules that go into a given application or set of application services. OSGi specifications let the application server understand the dependencies of the application and only assemble parts intended to work together. The code modules may also be updated as the application server runs. The dm designation is meant to suggest "dynamic modules."

SpringSource is not the only party to make use of the OSGi specifications. Oracle and IBM have adapted their application servers to incorporate OSGi standards as well.

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