compiler/testlibrary/uncommontrap/Verifier doesn't close FileReader

Verifier uses java.io.FileReader to load properties, although it doesn't close FileReader, this can cause sporadic failures during clean up.
   
    private static void verify(Path compLogFile) throws IOException {
        Path propertiesFile = Paths.get(compLogFile.toString() +
                PROPERTIES_FILE_SUFFIX);

        Properties properties = new Properties();
        properties.load(new FileReader(propertiesFile.toFile()));