* @since 15.0 (in 14.0 with return type {@link BufferedWriter})
   */
  public Writer openBufferedStream() throws IOException {
    Writer writer = openStream();
    return (writer instanceof BufferedWriter)
        ? (BufferedWriter) writer
        : new BufferedWriter(writer);
  }

  /**
   * Writes the given character sequence to this sink.
   *

import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.GenericDeclaration;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.Buffer;

import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Serializable;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.GenericDeclaration;

    checkNotNull(file);
    checkNotNull(charset);
    return new BufferedReader(new InputStreamReader(new FileInputStream(file), charset));
  }

  /**
   * Returns a buffered writer that writes to a file using the given character set.
   *
   * <p><b>{@link java.nio.file.Path} equivalent:</b> {@link
   * java.nio.file.Files#newBufferedWriter(java.nio.file.Path, Charset,
   * java.nio.file.OpenOption...)}.

    StringBuilder builder = new StringBuilder();
    Writer writer = new AppendableWriter(builder);

    writer.write("Hello".toCharArray());
    writer.write(',');
    writer.write(0xBEEF0020); // only lower 16 bits are important
    writer.write("Wo");
    writer.write("Whirled".toCharArray(), 3, 2);
    writer.write("Mad! Mad, I say", 2, 2);

    assertEquals("Hello, World!", builder.toString());
  }

    Writer writer = sink.openStream();
    try {
      writer.write(data);
    } finally {
      writer.close();
    }

    assertContainsExpectedString();
  }

  public void testOpenBufferedStream() throws IOException {
    Writer writer = sink.openBufferedStream();
    try {
      writer.write(data);
    } finally {
      writer.close();
    }

    }
  }

  /**
   * Returns a Writer that sends all output to the given {@link Appendable} target. Closing the
   * writer will close the target if it is {@link Closeable}, and flushing the writer will flush the
   * target if it is {@link java.io.Flushable}.
   *
   * @param target the object to which output will be sent
   * @return a new Writer object, unless target is a Writer, in which case the target is returned
   */

    public CharSource createSource(String string) throws IOException {
      checkNotNull(string);
      File file = createFile();
      Writer writer = new OutputStreamWriter(new FileOutputStream(file), Charsets.UTF_8);
      try {
        writer.write(string);
      } finally {
        writer.close();
      }
      return Files.asCharSource(file, Charsets.UTF_8);
    }

    @Override

  /**
   * Returns an {@code OutputStream} that encodes bytes using this encoding into the specified
   * {@code Writer}. When the returned {@code OutputStream} is closed, so is the backing {@code
   * Writer}.
   */
  @J2ktIncompatible
  @GwtIncompatible // Writer,OutputStream
  public abstract OutputStream encodingStream(Writer writer);

  /**
   * Returns a {@code ByteSink} that writes base-encoded bytes to the specified {@code CharSink}.

    // 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.
    // This is a sanity check that the test doesn't spuriously pass because