#Java annotations servlet download

“The benefit that the include proposal from Greg Wilkins is very little specially if the main concern is that servlets and filters are being exposed without the user intending to do so. Specification lead Rajiv Mordani is unconvinced: No other jars or classes would be scanned unless listed in their own include elsewhere in the web.xml.' This include would scan only the dwr.jar and cometd.jar for annotations, TLD fragments and web.xml fragments, the WEB-INF/classes directory would be scanned for annotated servlets. If however, a web.xml contained element, then the discovery process would be modified as the following examples illustrate: Greg Wilkins has described the concerns, with particular reference to the automatic scanning and merging of web fragments, in some detail on his blog, and also outlines one of three possible solutions: using an optional element to guide the automatic discovery of configuration: 'Without a web.xml or with a 3.0 web.xml that does not list any inclusions, the default would be to search all of WEB-INF for annotated servlets and filters, TLD listeners and web.xml fragments as currently proposed. In consequence the expert group are asking for community feedback. There is also some debate around whether the new features are sufficiently flexible. These features are causing considerable debate within the expert group, with some members concerned that they represent a serious security risk with accidental or deliberately obfuscated deployment of unintended filters and servlets.

Support for web.xml fragments: These can contain the definition of a servlet, filters, and listeners to be merged with the web.xml to allow a web framework jar to package up all its defaults, so that it can more easily be dropped in and used.Ī flag (metadata-complete) is used to control the scanning of both annotations and fragments.Additional annotations: The Servlet 3.0 specification introduces a number of new annotations including which provides url-mapping information for the servlet - and which is used in conjunction with to define a filter in a web application.

To achieve the zero configuration and plugability goals, the specification proposes several new features including:

#Java annotations servlet download

The specification is currently in early draft and available for download and review. JSR-315, the Servlet 3.0 specification planned for inclusion as part of EE6, is looking to change this.

Most Java web frameworks build on the Servlet API and require you to configure one or more servlets, filters or listeners in the application's web.xml in addition to including dependencies in the WEB-INF/lib directory.