Web.xml error-page is not used

[erugeri]

Unlike App Engine env, in managed VM the <error-page> tag in web.xml is not used and the user sees a page like this in case of error 500 :

HTTP ERROR: 500

Problem accessing /. Reason:

    org.apache.jasper.JasperException: java.lang.NullPointerException
Powered by Jetty://

I forked the hello app to show that unexpected behavior : https://github.com/erugeri/appengine-java-vm-hello/compare/webxml-error-page-bug?diff=unified

[aozarov]

error-page issue seems to have been fixed in the GoogleCloudPlatform/appengine-java-vm-runtime async-support branch. To use it, you can create a docker file, appengine-java-vm-hello/src/main/webapp/Dockerfile to contain the following:

FROM gcr.io/google_appengine/jetty9-compat:githubheadasync
ADD . /app

[erugeri]

Great! Thanks for the reply.
I'd really like to test it, unfortunately: GoogleCloudPlatform/gcloud-maven-plugin#85