java - Servlet 3 issues with @WebFilter and @WebServlet deployment -

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i trying migrate existing servlets , filters defined in web.xml file @webservlet , @webfilter annotations on glassfish v3 server.

currently web.xml defined 12 servlets , 6 filters . tried removing 1 servlet web.xml file , added @webservlet annotation java servlet file .

but having difficulty in accessing servlet when ever jsp trying access servlet glassfish complains "service not available".

basically servlet , filter defined using annotations never identified glassfish server 3.

is existing bug annotations can not used along web.xml file ? have workaround.

i referred following sun documentation migrate web.xml servlet 3 annotations

you've got web.xml correct, below beginning of web.xml should use:

<?xml version="1.0" encoding="utf-8"?> <web-app      xmlns="http://java.sun.com/xml/ns/javaee"      xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"      metadata-complete="false"      version="3.0"      xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

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