code: public void setIgnoreStateErrors(boolean b) {
          // 311717
          if (com.ibm.ejs.ras.TraceComponent.isAnyTracingEnabled()&&logger.isLoggable (Level.FINE))  //306998.15
              logger.logp(Level.FINE, CLASS_NAME,"setIgnoreStateErrors", " " + String.valueOf(b),"["+this+"]");
          _ignoreStateErrors = b;
      }
docs: This method is used to prevent IllegalStateExceptions that may be thrown
  because the engine attempts to report the error, but has no idea what state
  the currently executing servlet has put this response into.  The error reporting
  will attempt to set the status code and will use getWriter() which may not be
  legal in the current response state.  If we are attempting to report an error,
  we don't care what the state is, so this method will force the response to
  ignoreStateErrors.
  
  @param b The logical value to set the ignore state errors flag to.