Estou tendo este problema ao utilizar o sendRedirect, o erro que aparece:

***HTTP Status 500 – Internal Server Error
Message Cannot call sendRedirect() after the response has been committed

***Description The server encountered an unexpected condition that prevented it from fulfilling the request.
*
**java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed
    org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:488)
    br.com.alura.gerenciador.servlet.AlteraEmpresaServlet.doPost(AlteraEmpresaServlet.java:45)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)**
    
    Note The full stack trace of the root cause is available in the server logs.
    

Ficarei extremamente grato se puderem me auxiliar! :)