src/main/java/org/apache/commons/io/input/TeeInputStream.java [78:125]:
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        super(input);
        this.branch = branch;
        this.closeBranch = closeBranch;
    }

    /**
     * Closes the proxied input stream and, if so configured, the associated
     * output stream. An exception thrown from one stream will not prevent
     * closing of the other stream.
     *
     * @throws IOException if either of the streams could not be closed
     */
    @Override
    public void close() throws IOException {
        try {
            super.close();
        } finally {
            if (closeBranch) {
                branch.close();
            }
        }
    }

    /**
     * Reads a single byte from the proxied input stream and writes it to
     * the associated output stream.
     *
     * @return next byte from the stream, or -1 if the stream has ended
     * @throws IOException if the stream could not be read (or written)
     */
    @Override
    public int read() throws IOException {
        final int ch = super.read();
        if (ch != EOF) {
            branch.write(ch);
        }
        return ch;
    }

    /**
     * Reads bytes from the proxied input stream and writes the read bytes
     * to the associated output stream.
     *
     * @param bts byte buffer
     * @return number of bytes read, or -1 if the stream has ended
     * @throws IOException if the stream could not be read (or written)
     */
    @Override
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src/main/java/org/apache/commons/io/input/TeeReader.java [70:114]:
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        super(input);
        this.branch = branch;
        this.closeBranch = closeBranch;
    }

    /**
     * Closes the proxied reader and, if so configured, the associated writer. An exception thrown from the reader will
     * not prevent closing of the writer.
     *
     * @throws IOException if either the reader or writer could not be closed
     */
    @Override
    public void close() throws IOException {
        try {
            super.close();
        } finally {
            if (closeBranch) {
                branch.close();
            }
        }
    }

    /**
     * Reads a single character from the proxied reader and writes it to the associated writer.
     *
     * @return next character from the reader, or -1 if the reader has ended
     * @throws IOException if the reader could not be read (or written)
     */
    @Override
    public int read() throws IOException {
        final int ch = super.read();
        if (ch != EOF) {
            branch.write(ch);
        }
        return ch;
    }

    /**
     * Reads characters from the proxied reader and writes the read characters to the associated writer.
     *
     * @param chr character buffer
     * @return number of characters read, or -1 if the reader has ended
     * @throws IOException if the reader could not be read (or written)
     */
    @Override
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