from = partitionPoint + 1;
      }
    }
  }

  /**
   * Performs a partition operation on the slice of {@code array} with elements in the range [{@code
   * from}, {@code to}]. Uses the median of {@code from}, {@code to}, and the midpoint between them
   * as a pivot. Returns the index which the slice is partitioned around, i.e. if it returns {@code

   */
  public static boolean isWellFormed(byte[] bytes) {
    return isWellFormed(bytes, 0, bytes.length);
  }

  /**
   * Returns whether the given byte array slice is a well-formed UTF-8 byte sequence, as defined by
   * {@link #isWellFormed(byte[])}. Note that this can be false even when {@code
   * isWellFormed(bytes)} is true.
   *
   * @param bytes the input buffer

    assertThrows(
        "expected IllegalArgumentException for call to slice with offset -1: " + source,
        IllegalArgumentException.class,
        () -> source.slice(-1, 0));

    assertThrows(
        "expected IllegalArgumentException for call to slice with length -1: " + source,
        IllegalArgumentException.class,
        () -> source.slice(0, -1));
  }

   * the offset at which the slice is supposed to start.
   */
  // TODO(cgdecker): Maybe add a test for this to ByteSourceTester
  public void testSlice_appendingAfterSlicing() throws IOException {
    // Source of length 5
    AppendableByteSource source = new AppendableByteSource(newPreFilledByteArray(5));

    // Slice it starting at offset 10.
    ByteSource slice = source.slice(10, 5);

    public String mimeType = "application/datastore";

    protected boolean alive = true;

    public void register() {
        ComponentUtil.getDataStoreFactory().add(getName(), this);
    }

    protected abstract String getName();

    @Override
    public void stop() {
        alive = false;
    }

    @Override

    TestSuite suite = suiteForString(factory, new String(bytes, Charsets.UTF_8), name, desc);
    ByteSourceFactory byteSourceFactory = SourceSinkFactories.asByteSourceFactory(factory);
    suite.addTest(
        ByteSourceTester.suiteForBytes(
            byteSourceFactory, bytes, name + ".asByteSource[Charset]", desc, slice));
    return suite;
  }

     * consumer project.
     * <p>
     * Note: This property is about "build path", whatever it means in the scope of the consumer project. It is NOT
     * about Java classpath or anything alike. How artifact is being consumed depends heavily on the consumer project.
     * Resolver is and will remain agnostic of consumer project use cases.
     */

    checkNotNull(factory);
    return new ByteSourceFactory() {
      @Override
      public ByteSource createSource(byte[] bytes) throws IOException {
        return factory.createSource(bytes).slice(off, len);
      }

      @Override
      public byte[] getExpected(byte[] bytes) {
        byte[] baseExpected = factory.getExpected(bytes);
        int startOffset = (int) Math.min(off, baseExpected.length);

    TestSuite suite = suiteForString(factory, new String(bytes, Charsets.UTF_8), name, desc);
    ByteSourceFactory byteSourceFactory = SourceSinkFactories.asByteSourceFactory(factory);
    suite.addTest(
        ByteSourceTester.suiteForBytes(
            byteSourceFactory, bytes, name + ".asByteSource[Charset]", desc, slice));
    return suite;
  }

       *  `callable` fields automatically. That would make it less important for us to null out the
       * reference to `task` here (though it's still nice to do so in case our reference to the
       * executor keeps it alive). Ideally, nulling out `callable` would be the responsibility of
       * InterruptibleTask itself so that its other subclasses also benefit. (Handling `callable` in