Bug 124193 Parent axis doesn't work for recursive XPath
When table mapping for XML files is specified via recursive XPath: e.g. "//book", the parent axis access is broken for column mappings on such table: e.g. "../bookstore/@name" will not work. Same parent axis access works fine if non-recursive XPath is used for table mapping: e.g. "/bookstore/book".
data/org.eclipse.birt.report.data.oda.xml/src/org/eclipse/birt/report/data/oda/xml/util/ui/XPathPopulationUtil.java
startingIndex = getStartingIndex( columnPathFrags, commonRoot );
		
		
		if( columnPathFrags.length < startingIndex+1 || startingIndex == 0)
			return null;
		endingIndex = getEndingIndex( rootPathFrags, columnPathFrags, startingIndex );
		
		return populateXpathExpression( columnPath, rootPathFrags, startingIndex, endingIndex );
	}
	/**
	 * @param columnPathFrags
	 * @param startingIndex
	 * @param commonRoot
	 * @return
	 */
	private static int getStartingIndex( String[] columnPathFrags, String commonRoot )
	{
		int startingIndex = 0;
		for( int i = 1; i < columnPathFrags.length; i++)
		{
			if( is2FragmentsEqual(commonRoot,columnPathFrags[i]))
			{
				startingIndex = i;
				break;
			}
		}
		return startingIndex;
	}
	
	/**