Bug 200133 Chart can not share the column binding from table item[00]
Description: Chart can not share the column binding from table item[00] Step: 1. New a datasource and dataset 2. New a table named table1 and binding the dataset 3. New a chart and binding the sharing result set on table1 Actual result: The data columns have been not share on the chart Exceptioon result: The data column binding will share on the chart
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/ReportDataServiceProvider.java
File file = new File( classPathArray[i] );
			try
			{
				urls[i] = file.toURL( );
			}
			catch ( MalformedURLException e )
			{
				urls[i] = null;
			}
		}
		return new URLClassLoader( urls, parent );
	}
	
	
	/* (non-Javadoc)
	 * @see org.eclipse.birt.chart.ui.swt.interfaces.IDataServiceProvider#getDataType(java.lang.String)
	 */
	public DataType getDataType( String expression )
	{
		if ( expression == null || expression.trim( ).length( ) == 0 )
		{
			return null;
		}
		
		Object[] returnObj = findDataType( expression, itemHandle );
		if ( ( (Boolean) returnObj[0] ).booleanValue( ) )
		{
			return (DataType) returnObj[1];
		}