code: private File findFile(final SecurityContext securityContext, final HttpServletRequest request, final String path) throws FrameworkException {
  
  		List<Linkable> entryPoints = findPossibleEntryPoints(securityContext, request, path);
  
  		// If no results were found, try to replace whitespace by '+' or '%20'
  		if (entryPoints.isEmpty()) {
  			entryPoints = findPossibleEntryPoints(securityContext, request, PathHelper.replaceWhitespaceByPlus(path));
  		}
  
  		if (entryPoints.isEmpty()) {
  			entryPoints = findPossibleEntryPoints(securityContext, request, PathHelper.replaceWhitespaceByPercentTwenty(path));
  		}
  
  		for (Linkable node : entryPoints) {
  
  			if (node instanceof File && (path.equals(node.getPath()) || node.getUuid().equals(PathHelper.getName(path)))) {
  				return (File) node;
  			}
  		}
  
  		return null;
  	}
docs: Find a file with its name matching last path part
  
  @param securityContext
  @param request
  @param path
  @return file
  @throws FrameworkException