Bug 200755 [smoke]Fail to preview Crosstab after deploy BIRT in application servers.[0601][1102]
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataRequestSessionImpl.java
levelKeys.add( OlapExpressionUtil.getAttributeColumnName( level.getName( ),
							levelAttr.getName( ) ) );
				}
				if ( DesignChoiceConstants.LEVEL_TYPE_DYNAMIC.equals( level.getLevelType( ) )
						&& level.getDisplayColumnName( ) != null )
				{
					levelKeys.add( OlapExpressionUtil.getDisplayColumnName( level.getName( ) ) );
				}
				leafLevelKeyColumn[k] = level.getName( );
				
				levelInHier[k] = CubeElementFactory.createLevelDefinition( level.getName( ),
						new String[]{
							level.getName( )
						},
						this.toStringArray( levelKeys ) );
			}
			
			createLeafLevel( levels, levelInHier, leafLevelKeyColumn );
		
			iHiers.add( cubeMaterializer.createHierarchy( dim.getName( ), hierhandle.getName( ),
					new DataSetIterator( this, hierhandle, appContext ),
					levelInHier ) );
		}
		return cubeMaterializer.createDimension( dim.getName( ),
				(IHierarchy) iHiers.get( 0 ) ) ;
	}
	/**
	 * 
	 * @param levels
	 * @param levelInHier