Where do Entities get saved if you run a GAE project in development mode?

I am running a GWT Web Application proje开发者_运维知识库ct in Eclipse with certain Entities that I make persisent using JDO. Where (on my file system) do these Entities actually get saved if I run the project in development mode from Eclipse (so not on the Google App Engine, but locally)?

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Found it:

\war\WEB-INF\appengine-generated

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Did you already look up in you eclipse Work_dir? If there isn´t any of the entities you search, maybe you will find something helpful with window-->preferences-->GWT.

But unfortunately I never worked with GWT, so I´m just guessing.