I found only related topic for c# please don't blame me if I missed the resource.
It looks something like
/project/blablaentered and content with 404.
Effectively I just want to specify my own page when 404 page is thrown.
My security xml:
<security:http auto-config="true" use-expressions="true" >
<security:form-login login-processing-url="/static/j_spring_security_check" login-page="/login" authentication-failure-url="/login?login_error=t" default-target-url="/home"/>
<security:intercept-url pattern="/home" access="isAuthenticated()" />
<security:intercept-url pattern="/home/try" access="hasRole('ROLE_EDITOR')"/>
<security:access-denied-handler error-page="/accessDenied"/>
</security:http>
UPDATE: Please follow for solution: Custom 404 using Spring DispatcherServlet