Is there a way to use the context-params inside the web.xml
example
<context-param>
    <param-name>AUTH_SERVER</param-name>
    <param-value>10.126.35.10</param-value>
</context-param>
...
<filter>
    <filter-name>NtlmHttpFilter</filter-name>
    <filter-class>jcifs.http.NtlmHttpFilter</filter-class>
    <init-param>
        AUTH_SERVER
    </init-param>
...