*
   * @param from the object to read from
   * @param to the object to write to
   * @return the number of characters copied
   * @throws IOException if an I/O error occurs
   */
  @CanIgnoreReturnValue
  public static long copy(Readable from, Appendable to) throws IOException {
    // The most common case is that from is a Reader (like InputStreamReader or StringReader) so
    // take advantage of that.

            visit(rootDir, pathVisitor);
        } catch (IOException e) {
            throw new GradleException(String.format("Could not list contents of directory '%s'.", rootDir), e);
        }
    }

    private static FileVisitResult visit(Path path, PathVisitor pathVisitor) throws IOException {
        BasicFileAttributes attrs;
        try {

   *     an {@code IOException}.
   * @see Closeables#close
   */
  public static void flush(Flushable flushable, boolean swallowIOException) throws IOException {
    try {
      flushable.flush();
    } catch (IOException e) {
      if (swallowIOException) {
        logger.log(Level.WARNING, "IOException thrown while flushing Flushable.", e);
      } else {
        throw e;
      }
    }
  }

  /**

closeStartTag() throws java.io.IOException; private void writeNamespaceDeclar() throws java.io.IOException; public XmlSerializer endTag(String, String) throws java.io.IOException; public XmlSerializer text(String) throws java.io.IOException; public XmlSerializer text(char[], int, int) throws java.io.IOException; public void cdsect(String) throws java.io.IOException; public void entityRef(String) throws java.io.IOException; public void processingInstructio(String) throws java.io.IOException; public void comment(String)...

closeStartTag() throws java.io.IOException; private void writeNamespaceDeclar() throws java.io.IOException; public XmlSerializer endTag(String, String) throws java.io.IOException; public XmlSerializer text(String) throws java.io.IOException; public XmlSerializer text(char[], int, int) throws java.io.IOException; public void cdsect(String) throws java.io.IOException; public void entityRef(String) throws java.io.IOException; public void processingInstructio(String) throws java.io.IOException; public void comment(String)...

closeStartTag() throws java.io.IOException; private void writeNamespaceDeclar() throws java.io.IOException; public XmlSerializer endTag(String, String) throws java.io.IOException; public XmlSerializer text(String) throws java.io.IOException; public XmlSerializer text(char[], int, int) throws java.io.IOException; public void cdsect(String) throws java.io.IOException; public void entityRef(String) throws java.io.IOException; public void processingInstructio(String) throws java.io.IOException; public void comment(String)...

        @Override
        public void write(int b) throws IOException {
            delegate.write(HEX_DIGIT[(b >> 4) & 0x0f]);
            delegate.write(HEX_DIGIT[b & 0x0f]);
        }

        @Override
        public void flush() throws IOException {
            delegate.flush();
        }

        @Override
        public void close() throws IOException {
            delegate.close();
        }
    }

  }

  public void testWriteString() throws IOException {
    File temp = createTempFile();
    Files.write(I18N, temp, Charsets.UTF_16LE);
    assertEquals(I18N, Files.toString(temp, Charsets.UTF_16LE));
  }

  public void testWriteBytes() throws IOException {
    File temp = createTempFile();
    byte[] data = newPreFilledByteArray(2000);
    Files.write(data, temp);

   *
   * @param it an iterator of I/O suppliers that will provide each substream
   */
  public MultiInputStream(Iterator<? extends ByteSource> it) throws IOException {
    this.it = checkNotNull(it);
    advance();
  }

  @Override
  public void close() throws IOException {
    if (in != null) {
      try {
        in.close();
      } finally {
        in = null;
      }
    }
  }

    /**
     * Test method for
     * {@link org.codelibs.core.io.PropertiesUtil#store(Properties, java.io.OutputStream, String)}
     * .
     *
     * @throws IOException
     */
    @Test
    public void testStorePropertiesOutputStreamString() throws IOException {
        final Properties outProperties = new Properties();
        outProperties.setProperty("a", "A");
        final File file = tempFolder.newFile("hoge.properties");