Bug 168148 [regression]Table with chart from library fails to preview.[01][0001]
Description: Table with chart from library fails to preview. Build number:2.1.2.v20061215 and 2.2.0.v20061213 Steps to reproduce: 1.Create a library, create a sample DB data source and data set: select * from orders 2.Insert a tabel to the library, bind data set to the table 3.Insert a group for the tabel ,group by "row["OrderDate"]", Interval: Year, Range:1 4.Drag a chart into 3rd cell on group row, bar chart, go to "Select Data" tab , bind data set, X Series:row["OrderDate"], Y Series:row["OrderNumger"]; click "Finish" button 5.Create a new report, use the library 6.Drag the table in the library to the report. 7.Preview in html. Expected Result: Report content displays without errors. Actual result: Error happened while running the report.(same for 2.1.2 and 2.2.0) Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
* @return externalized value.
	 */
	public static String getExternalizedValue( DesignElement element,
			String propIDName, String propName, ULocale locale )
	{
		if ( element == null || element.getPropertyDefn( propName ) == null
				|| element.getPropertyDefn( propIDName ) == null )
			return null;
		String textKey = searchForExternalizedValue( element, propIDName,
				locale );
		if ( !StringUtil.isBlank( textKey ) )
			return textKey;
		
		return element.getStringProperty( element.getRoot( ), propName );
	}
	/**
	 * Checks if report design contains the same library as the target library
	 * which user wants to export. If no exception throws , that stands for user
	 * can export report design to library. Comparing with the obsolute file
	 * name path, if file is the same , throw <code>SemanticException</code>
	 * which error code is include recursive error.
	 * 
	 * For example , the path of library is "C:\test\lib.xml" .The followings
	 * will throw semantic exception:
	 * 
	 * <ul>
	 * <li> design file and library in the same folder: </li>
	 * <li> <list-property name="libraries"> <structure> <property
	 * name="fileName">lib.xml</property> <property name="namespace">lib</property>
	 * </structure> </list-property> </li>