Exception is not being logged if the response has already been committed

[asolanaruiz]

If you try to go to the /welcome url in my github project (https://github.com/asolanaruiz/spring-boot-sample-web-jsp) a JasperException will be thrown because the welcome.jspx file has an invalid tag.
The ErrorPageFilter will redirect you to the error page but the original exception is not shown in the console or log file.

According to the comment found in the forwardToErrorPage method of the ErrorPageFilter class, the exception should have been logged already, but in this case I don't see it. I only see the "Cannot forward to error page..." message.

This issue is a follow up of issue #748

[asolanaruiz]

Works perfectly, thank you!