Hi
I am a sample application with ACEGI security frame work. I have configured all the needed stuffs.
applicationcontext.xml
<bean id="filterChainProxy" class="org.acegisecurity.util.FilterChainProxy">
<property name="filterInvocationDefinitionSource">
<value>
CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON
PATTERN_TYPE_APACHE_ANT
/**=httpSessionContextIntegrationFilter,authenticat ionProcessingFilter
</value>
</property>
</bean>
<bean id="httpSessionContextIntegrationFilter" class="org.acegisecurity.context.HttpSessionContex tIntegrationFilter"/>

<bean id="authenticationProcessingFilter" class="org.acegisecurity.ui.webapp.AuthenticationP rocessingFilter">
<property name="authenticationManager" ref="authenticationManager"/>
<property name="authenticationFailureUrl" value="/jsp/login.jsp"/>
<property name="defaultTargetUrl" value="/"/>
<property name="filterProcessesUrl" value="/j_acegi_security_check"/>
</bean>
<bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager ">
<property name="providers">
<list>
<ref local="daoAuthenticationProvider"/>
</list>
</property>
<!--<property name="sessionController">
<ref bean="concurrentSessionController"/>
</property> -->
</bean>

<bean id="daoAuthenticationProvider" class="org.acegisecurity.providers.dao.DaoAuthenti cationProvider">
<property name="userDetailsService" ref="userDetailsService"/>
</bean>

<bean id="userDetailsService" class="org.acegisecurity.userdetails.memory.InMemo ryDaoImpl">
<property name="userProperties">
<bean class="org.springframework.beans.factory.config.Pr opertiesFactoryBean">
<property name="location" value="/WEB-INF/users.properties"/>
</bean>
</property>
</bean>

my login page is
<jsp:root version="1.2" xmlns:jsp="http://java.sun.com/JSP/Page"xmlns:c="urn:jsptld:http://java.sun.com/jsp/jstl/core">
<jsp:directive.page contentType="text/html; charset=UTF-8" />
<jsp:directive.page import="org.acegisecurity.ui.AbstractProcessingFil ter, org.acegisecurity.ui.webapp.AuthenticationProcessi ngFilter, org.acegisecurity.AuthenticationException" />
<head>

<title>Gateway Deployment Tool</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
<link href="../css/style-firefox.css" rel="stylesheet"/>
<!--[if gte IE 6]>
<link href="../css/style.css" rel="stylesheet"/>
<![endif] -->
</head>
<script>
funciton loginSubmit()
{
alert(" Login submit ");

}
function loginReset()
{
alert(" Login Reset ");
}
</script>
<form action="j_acegi_security_check" method="post">
<body class="design">
<table >
<tr>
<td>
<table id="loginPage" style="background: url(../img/login_bg.gif) top right repeat-x; ">
<tr>
<td class="tbl_bcgLogin" align="left">
UserName:
<FONT SIZE=3 COLOR="red" FACE="Arial">&nbsp;*&nbsp;</FONT>
<img src="../img/user.GIF"/>&nbsp;
</td>
<td class="tbl_bcgLogin" align="right">
<input class="contentTextBoxNormal" type="text" name="j_username" id="j_username" value="$!status.value" tabindex="1" />
</td>
</tr>
<tr>
<td class="tbl_bcgLogin" align="left">
Password:
<FONT SIZE=3 COLOR="red" FACE="Arial">&nbsp;*&nbsp;</FONT>
<img src="../img/pwd.GIF"/>&nbsp;
</td>
<td class="tbl_bcgLogin" align="right">
<input class="contentTextBoxNormal" type="password" name="j_password" id="j_password" tabindex="1" value="$!status.value" onkeypress="submitonEnter(event)"/>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table>
<tr>
<td class="bttn" style="width:15px;border:0px;height:23px"><a id="loginLink" tabindex="1" onClick="loginSubmit()"><img src="../img/btn_login.gif" name="btnLogin" id="btnLogin"/></a></td>&nbsp;
<td class="bttn" style="width:15px;border:0px;height:23px"><a id="resetLink" tabindex="1" onClick="loginReset()" ><img src="../img/btn_reset.gif" name="btnreset" id="btnReset"/></a></td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</form>
</jsp:root>

After doing this when i invoke other urls authenticationProcessingFilter is not getting fired
Please help me to sort out the mistake i have done in configuration

I have seperate property file which hold username and password details as
users.properties

shankar=nathan,ROLE_USER