Bug 204430 [Automation][Regression]An exception is thrown in console when preview reportdesign
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/util/ExprDataReader1.java
{
		Map valueMap = new HashMap( );
		int exprCount = IOUtil.readInt( rowExprsDis );
		for ( int i = 0; i < exprCount; i++ )
		{
			String exprID = this.exprKeys.get( i ).toString( );
			Object exprValue = IOUtil.readObject( rowExprsDis );
			if ( RowSaveUtil.EXCEPTION_INDICATOR.equals( exprValue ) )
			{
				valueMap.put( exprID,
						new DataException( ResourceConstants.READ_COLUMN_VALUE_FROM_DOCUMENT_ERROR,
								exprID ) );
				continue;
			}
			valueMap.put( exprID, exprValue );
		}
		java.util.Iterator it = this.dataSetExprKeys.keySet( ).iterator( );
		while( it.hasNext( ))
		{
			String key = it.next( ).toString( );
			String value = (String)this.dataSetExprKeys.get( key );
			IResultObject o = this.dataSetData.getResultObject( );
			
			try
			{
				valueMap.put( key,
						o == null
								? null
								: DataTypeUtil.convert( o.getFieldValue( value ),
										( (Integer) this.bindingNameTypeMap.get( key ) ).intValue( ) ) );