Method close

lib/java/io/BufferedWriter.java:94–122

Closes this writer. The contents of the buffer are flushed, the target writer is closed, and the buffer is released. Only the first invocation of close has any effect. @throws IOException if an error occurs while closing this writer.

()

     *             if an error occurs while closing this writer.
     */
    @Override
    public void close() throws IOException {
        synchronized (lock) {
            if (isClosed()) {
                return;
            }

            Throwable thrown = null;
            try {
                flushInternal();
            } catch (Throwable e) {
                thrown = e;
            }
            buf = null;

            try {
                out.close();
            } catch (Throwable e) {
                if (thrown == null) {
                    thrown = e;
                }
            }
            out = null;

            if (thrown != null) {
                SneakyThrow.sneakyThrow(thrown);
            }
        }
    }

    /**
     * Flushes this writer. The contents of the buffer are committed to the