dengine = factory.createDesignEngine(dconfig);
// create a new session, open the library, and retrieve the first
// data source since it is uniform in our library
SessionHandle session = dengine.newSessionHandle(ULocale.ENGLISH);
LibraryHandle design = session
.openLibrary("C:/eclipse/GWTBirt/BIRTGwt/src/reports/DataSets.rptlibrary");
dataSourceHandle = (DataSourceHandle) design.getDataSources()
.get(0);
// create a new report