/**
   * Creates a new temp file in the temp directory returned by {@link #getTempDir()}. The file will
   * be deleted in the tear-down for this test.
   */
  protected final File createTempFile() throws IOException {
    return File.createTempFile("test", null, getTempDir());
  }

  /** Returns a byte array of length size that has values 0 .. size - 1. */
  static byte[] newPreFilledByteArray(int size) {

    // Check that we can find a resource if it is visible to the context class
    // loader, even if it is not visible to the loader of the Resources class.

    File tempFile = createTempFile();
    PrintWriter writer = new PrintWriter(tempFile, "UTF-8");
    writer.println("rud a chur ar an méar fhada");
    writer.close();

    // First check that we can't find it without setting the context loader.

   * so.
   */
  @GuardedBy("this")
  private void update(int len) throws IOException {
    if (memory != null && (memory.getCount() + len > fileThreshold)) {
      File temp = TempFileCreator.INSTANCE.createTempFile("FileBackedOutputStream");
      if (resetOnFinalize) {
        // Finalizers are not guaranteed to be called on system shutdown;
        // this is insurance.
        temp.deleteOnExit();
      }
      try {

  /**
   * Creates a new temp file in the temp directory returned by {@link #getTempDir()}. The file will
   * be deleted in the tear-down for this test.
   */
  protected final File createTempFile() throws IOException {
    return File.createTempFile("test", null, getTempDir());
  }

  /** Returns a byte array of length size that has values 0 .. size - 1. */
  static byte[] newPreFilledByteArray(int size) {

    // Check that we can find a resource if it is visible to the context class
    // loader, even if it is not visible to the loader of the Resources class.

    File tempFile = createTempFile();
    PrintWriter writer = new PrintWriter(tempFile, "UTF-8");
    writer.println("rud a chur ar an méar fhada");
    writer.close();

    // First check that we can't find it without setting the context loader.