In spring security after successfull authentication I was getting the Access denied error to go to pages which had the authentication.

What I did was.

@Override
    protected void configure(HttpSecurity http) throws Exception {

      http
        .authorizeRequests()
        .antMatchers("/", "/homepage/**").permitAll()
        .antMatchers("/admin/**").access("hasRole('ADMIN')")
        .antMatchers("/db/**").access("hasRole('ADMIN') and hasRole('DBA')")
        .and().formLogin().loginPage("/login")
        .usernameParameter("username").passwordParameter("password")
        .and().exceptionHandling().accessDeniedPage("/Access_Denied");
}

Here the mistake was the role is authneticated if its written completely with ROLE_ prefix. In DB also it should be stored with ROLE_ prefix. Here is the updated code which worked well.

@Override
    protected void configure(HttpSecurity http) throws Exception {

      http
        .authorizeRequests()
        .antMatchers("/", "/homepage/**").permitAll()
        .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
        .antMatchers("/db/**").access("hasRole('ROLE_ADMIN') and hasRole('ROLE_DBA')")
        .and().formLogin().loginPage("/login")
        .usernameParameter("username").passwordParameter("password")
        .and().exceptionHandling().accessDeniedPage("/Access_Denied");
}