DataSource.getField hangs on CLIENTCUSTOM datasource

[rsinkwitz]

Hi, I have a client-side data source for CRUD operations on client-side XML.
It works fine in SGWT 3.1, but hangs in 4.0 when calling DataSource.getField()

Creating is like

public class LocalXmlDsImpl extends DataSource {

public LocalXmlDsImpl(
		super();
		setRecordXPath(recordXPath);
		setID(id);
		setDataFormat(DSDataFormat.CUSTOM);
		setDataProtocol(DSProtocol.CLIENTCUSTOM);
		setAddGlobalId(false);
// addings fields created with 'new DataSourceField();', properties copied from XmlTools.LoadXmlSchema() datasources

/* HERE IT HANGS */
	DataSourceField uuidField = ds.getField("UUId");

	uuidField.setPrimaryKey(true);
	uuidField.setHidden(true);

See the attached picture for a stack trace. It hangs on a socket read, although it should not do any network calls. This problem only appears with SmartGWT 4.0. It did not appear with SmartGWT 3.1. Please help.

Remark: This is related to my client-local data source for editing portions of a big complex XML mentioned in this thread which otherwise works well.

SmartClient Version: v9.0p_2013-08-07/PowerEdition Deployment (built 2013-08-07), IE9.0.8112

[Isomorphic]

That's a hang inside of GWT's development mode mechanism - we have no influence there. You might try upgrading or re-installing GWT.

We would also expect the problem to go away in compiled mode. It's also likely to be browser-specific even in development mode.