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    <p>Spring's <code>DelegatingFilterProxy</code> expects a bean having the name declared in <code>&lt;filter-name&gt;</code>. In your case, this is <code>springSecurityFilterChain</code>, but it doesn't seem like you have such a bean in your application context. </p> <p>Take a look at the last post in <a href="http://forum.springsource.org/showthread.php?53972-Problem-when-finding-springSecurityFilterChain-bean" rel="nofollow">this</a> thread.</p> <p>It seems like you need to explicitly use the <code>security</code> namespace for Spring to generate a <code>springSecurityFilterChain</code>. So add the namespace to all your <code>spring-security.xml</code> elements. (Make sure to change the default namespace to <code>beans</code> or something else.)</p> <p>Replace with</p> <pre><code>&lt;beans xmlns="http://www.springframework.org/schema/beans" xmlns:security="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd"&gt; &lt;security:http auto-config="true"&gt; &lt;security:intercept-url pattern="/rest*" access="ROLE_USER" /&gt; &lt;/security:http&gt; &lt;security:authentication-manager&gt; &lt;security:authentication-provider&gt; &lt;security:user-service&gt; &lt;security:user name="user" password="user" authorities="ROLE_USER" /&gt; &lt;/security:user-service&gt; &lt;/security:authentication-provider&gt; &lt;/security:authentication-manager&gt; &lt;/beans&gt; </code></pre> <p>There are other things wrong/not needed in your web.xml. It should be like this:</p> <pre><code>&lt;!--?xml version="1.0" encoding="UTF-8"?? --&gt; &lt;web-app id="WebApp_ID" version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"&gt; &lt;display-name&gt;SpringJerseyRestServer&lt;/display-name&gt; &lt;welcome-file-list&gt; &lt;welcome-file&gt;index.html&lt;/welcome-file&gt; &lt;/welcome-file-list&gt; &lt;!-- Configure ContextLoaderListener to use AnnotationConfigWebApplicationContext instead of the default XmlWebApplicationContext --&gt; &lt;context-param&gt; &lt;param-name&gt;contextClass&lt;/param-name&gt; &lt;param-value&gt; org.springframework.web.context.support.AnnotationConfigWebApplicationContext &lt;/param-value&gt; &lt;/context-param&gt; &lt;!-- Configuration locations must consist of one or more comma- or space-delimited fully-qualified @Configuration classes. Fully-qualified packages may also be specified for component-scanning --&gt; &lt;context-param&gt; &lt;param-name&gt;contextConfigLocation&lt;/param-name&gt; &lt;param-value&gt; com.server.rest.resource.ApplicationContext &lt;/param-value&gt; &lt;/context-param&gt; &lt;!-- Bootstrap the root application context as usual using ContextLoaderListener --&gt; &lt;listener&gt; &lt;listener-class&gt;org.springframework.web.context.ContextLoaderListener&lt;/listener-class&gt; &lt;/listener&gt; &lt;!-- Declare a Spring MVC DispatcherServlet as usual --&gt; &lt;servlet&gt; &lt;servlet-name&gt;dispatcher&lt;/servlet-name&gt; &lt;servlet-class&gt;org.springframework.web.servlet.DispatcherServlet&lt;/servlet-class&gt; &lt;!-- Configure DispatcherServlet to use AnnotationConfigWebApplicationContext instead of the default XmlWebApplicationContext --&gt; &lt;init-param&gt; &lt;param-name&gt;contextClass&lt;/param-name&gt; &lt;param-value&gt; org.springframework.web.context.support.XmlWebApplicationContext &lt;/param-value&gt; &lt;/init-param&gt; &lt;!-- Again, config locations must consist of one or more comma- or space-delimited and fully-qualified @Configuration classes --&gt; &lt;init-param&gt; &lt;param-name&gt;contextConfigLocation&lt;/param-name&gt; &lt;param-value&gt; /WEB-INF/spring-security.xml &lt;/param-value&gt; &lt;/init-param&gt; &lt;/servlet&gt; &lt;servlet&gt; &lt;servlet-name&gt;Jersey Spring Web Application&lt;/servlet-name&gt; &lt;servlet-class&gt;com.sun.jersey.spi.spring.container.servlet.SpringServlet&lt;/servlet-class&gt; &lt;init-param&gt; &lt;param-name&gt;com.sun.jersey.config.property.packages&lt;/param-name&gt; &lt;param-value&gt;com.server.rest.resource&lt;/param-value&gt; &lt;/init-param&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Jersey Spring Web Application&lt;/servlet-name&gt; &lt;url-pattern&gt;/rest/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;!-- Spring Security --&gt; &lt;filter&gt; &lt;filter-name&gt;springSecurityFilterChain&lt;/filter-name&gt; &lt;filter-class&gt;org.springframework.web.filter.DelegatingFilterProxy&lt;/filter-class&gt; &lt;/filter&gt; &lt;filter-mapping&gt; &lt;filter-name&gt;springSecurityFilterChain&lt;/filter-name&gt; &lt;url-pattern&gt;/rest/*&lt;/url-pattern&gt; &lt;/filter-mapping&gt; &lt;/web-app&gt; </code></pre> <p>The root context of your application is loaded by the ContextLoaderListener. You should only put ApplicationContext context (your <code>@Configuration</code> class) to be loaded by it. All other contexts loaded by your <code>DispatcherServlet</code> are children of the root context and can therefore reference beans inside it. There your <code>DispatcherServlet</code> needs only to load the <code>/WEB-INF/spring-security.xml</code> context (and possibly a context with MVC related beans, but it doesn't look like you have that here.) Since this is an xml file, you need a <code>XmlWebApplicationContext</code>.</p>
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    1. USSotirios Delimanolis
    1. USSotirios Delimanolis
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    1. COThank you for your reply, but I don't really understand what I have to add
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    2. COI still can't fix my problem please I need help.
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    3. CODo you understand how xml namespaces work? In your `spring-security.xml` file, prefix all security elements with `security:`, for example `<authentication-manager>` becomes `<security:authentication-manager>`. But you also need to change your namespace declarations.
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