Hi,

I try the asynctree demo with gwt 1.5rc1 and beta4 but I've got this error:

[WARN] StandardContext[]Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.util.List com.inovelan.client.FileService.getFolderChildren(com.inovelan.client.model.FileModel)' threw an unexpected exception: java.lang.NullPointerException

<module>
<inherits name="com.google.gwt.user.User"/>
<inherits name="com.extjs.gxt.ui.GXT"/>

<servlet path="/fileservice" class="com.inovelan.server.FileServiceImpl"/>
<entry-point class="com.inovelan.client.AlfrescoMygwt"/>

</module>

Do you know what happens?
Thanks