Bug 163749 Import BIRT runtime package to wtp will leave old birt files.
Description: Import BIRT runtime package to wtp will leave old birt files. Steps to reproduce: Prepare two birt builds. 1. Create a new BIRT Web Project with one build. 2. Use another build to open the same workspace, select the project and click Business Inteligent and Reporting Tools->Import BIRT runtime component. Expected result: Old birt runtime package will be replaced with new runtime package. Actual result: Old birt plugins were kept and new birt jar files are imported. e.g. org.eclipse.birt.report.engine_2.2.0.v20061101-0630.jar org.eclipse.birt.report.engine_2.2.0.v20061107-0635.jar
viewer/org.eclipse.birt.integration.wtp.ui/src/org/eclipse/birt/integration/wtp/ui/internal/wizards/BirtWizardUtil.java
}
				if ( method != null && instance != null )
				{
					
					resourceFolder = (String) method.invoke( instance,
							new Object[0] );
				}
			}
		}
		catch ( Exception e )
		{
			e.printStackTrace( );
		}
		if ( resourceFolder == null )
			resourceFolder = ""; 
		return resourceFolder;
	}
	/**
	 * Returns the web content folder setting value
	 * 
	 * @param dataModel
	 * @return
	 */
	public static String getConfigFolder( IDataModel dataModel )
	{
		if ( dataModel == null )
			return null;
		FacetDataModelMap dataModelMap = (FacetDataModelMap) dataModel
				.getProperty( "IFacetProjectCreationDataModelProperties.FACET_DM_MAP" ); 
		if ( dataModelMap == null )