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
public static void processCheckFolder( Map properties, IProject project,
			String webContentFolder, IProgressMonitor monitor )
	{
		if ( properties == null || project == null || webContentFolder == null )
			return;
		
		String[] folders = {BIRT_RESOURCE_FOLDER_SETTING,
				BIRT_DOCUMENT_FOLDER_SETTING, BIRT_IMAGE_FOLDER_SETTING,
				BIRT_SCRIPTLIB_FOLDER_SETTING, BIRT_LOG_FOLDER_SETTING};
		Map map = (Map) properties.get( EXT_CONTEXT_PARAM );
		if ( map == null )
			return;
		for ( int i = 0; i < folders.length; i++ )
		{
			String folder = WebArtifactUtil.getContextParamValue( map,
					folders[i] );
			checkFolder( project, webContentFolder, folder );
		}
	}
	/**
	 * Check folder if exist. If not, create it.
	 * 
	 * @param project
	 * @param webContentFolder
	 * @param folderName
	 */
	private static void checkFolder( IProject project, String webContentFolder,
			String folderName )
	{
		if ( folderName == null )