How to organize GWT project with multiple modules and shared server?

I have three GWT modules that will have some code in common - typically domain classes - and also share the same server instance. My first thought was to organize it like this:

app1/clie开发者_JAVA百科nt/

app2/client/

app3/client/

server/

shared/

The modules would then have in their descriptors:

<source path = "client"/>

<source path = "../shared"/>

But it seems like that the ../shared path is not working.

Is this the way to go, or are there better ways?

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I found at least on solution that works: Have all the modules in the same package, like this:

client/app1/App1.java
client/app2/App2.java
client/app3/App3.java
app1.gwt.xml
app2.gwt.xml
app3.gwt.xml
server/
shared/

I still kept subpackages app1, app2 and app3, but that's off course optional.
With this organization the module descriptors should say:

<source path = "client"/>
<source path = "shared"/>