final boolean[] hasOutput = new boolean[1];
        withReader(new Action<TestOutputStore.Reader>() {
            @Override
            public void execute(TestOutputStore.Reader reader) {
                hasOutput[0] = reader.hasOutput(classId, destination);
            }
        });
        return hasOutput[0];
    }

    @Override

}

// Open returns a new ReadSeeker reading the Plan 9 a.out section.
func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) }

// A Symbol represents an entry in a Plan 9 a.out symbol table section.
type Sym struct {
	Value uint64
	Type  rune
	Name  string
}

/*
 * Plan 9 a.out reader
 */

// formatError is returned by some operations if the data does

        assertArgumentNotNull("reader", reader);

        return () -> new LineIterator(reader);
    }

    /**
     * インスタンスを構築します。
     *
     * @param reader
     *            文字列を読み込む{@link Reader}。{@literal null}であってはいけません
     */
    public LineIterator(final Reader reader) {
        assertArgumentNotNull("reader", reader);
        this.reader = new BufferedReader(reader);
    }

    /**

# Controllers

Istio has a variety of [controllers](https://kubernetes.io/docs/concepts/architecture/controller/), which basically watch some inputs and do something.
This can be reading from Kubernetes and writing other objects back, writing to proxies over XDS, etc.

Unfortunately, writing controllers is very error prone, even for seemingly simple cases.
To work around this, Istio has a variety of abstractions meant to make writing controllers easier.

## Clients

        final boolean[] hasOutput = new boolean[1];
        withReader(new Action<TestOutputStore.Reader>() {
            @Override
            public void execute(TestOutputStore.Reader reader) {
                hasOutput[0] = reader.hasOutput(classId, destination);
            }
        });
        return hasOutput[0];
    }

    @Override

            }
        });
    }

    public void add(final Transformer<String, String> transformer) {
        transformers.add(new Transformer<Reader, Reader>() {
            @Override
            public Reader transform(Reader reader) {
                return new LineFilter(reader, transformer);
            }
        });
    }

    public void add(final Closure closure) {

    }

    def "reads from empty text"() {
        expect:
        def reader = new PreprocessingReader(new StringReader(""))
        !reader.readNextLine(new StringBuilder())
    }

    def "reads single line"() {
        expect:
        def reader = new PreprocessingReader(new StringReader("abc(123)"))
        def result = new StringBuilder()
        reader.readNextLine(result)
        result.toString() == "abc(123)"

    @Override
    public Model read(Reader reader, boolean strict, InputSource source) throws IOException, XmlPullParserException {
        return super.read(reader, strict, source);
    }

    @Override
    public Model read(Reader reader, boolean strict) throws IOException, XmlPullParserException {
        return super.read(reader, strict);
    }

    @Override

            this.inputStream = inputStream;
            return this;
        }

        public XmlReaderRequestBuilder reader(Reader reader) {
            this.reader = reader;
            return this;
        }

        public XmlReaderRequestBuilder transformer(Transformer transformer) {
            this.transformer = transformer;
            return this;

// the embedded Reader is coming from.

type _ interface {
	Reader
	Reader // ERROR "duplicate method Read"
}

type Reader interface {
	Read(p []byte) (n int, err error)
}

type _ interface {
	io.Reader
	Reader // ERROR "duplicate method Read"
}

type _ interface {
	io.Reader
	io /* ERROR "duplicate method Read" */ .Reader