Use of App Engine precompile feature?

When I try to enable the new Google App Engine 1.2.8 feature for precompiling class to speed the loading of the application, the application fails to compile.


Has anyone had any luck with this?


Hi Scott,

Can you elaborate on what fails to compile?

I added the parameter to
this project
and console log says it’s precompiling at deploy time.

Sorry, that was premature. There was apparently an issue with updating the Google App Engine version and I somehow ended up with a mix of 1.2.6 and 1.2.8.

There is still an issue with the deployment of the precompiled project… but at this point I would say that it doesn’t involve Vaadin. It looks like there may be a GAE problem with inheritance in JDO objects when the project is marked for precompile.