docs: protected File createTempDir(String namePrefix) {
  		final File tempDir = new File(getTempDirectory(), namePrefix);
  		cleanFolder(tempDir, ACCEPT_ALL_FILTER, true, true);
  		if (!tempDir.mkdirs()) {
  			throw new RuntimeException(MessageFormat.format(Messages.SarlBatchCompiler_8, tempDir.getAbsolutePath()));
  		}
  		this.tempFolders.add(tempDir);
  		return tempDir;
  	}