drools-eclipse/org.guvnor.eclipse.webdav/src/client/org/eclipse/webdav/http/client/Message.java
public void write(OutputStream os) throws IOException {
        Assert.isTrue(!inputRead);
        Assert.isTrue(!hasInputStream);

        int bytesRead = 0;
        int totalBytesRead = 0;
        byte[] buffer = bufferPool.getBuffer();
        long contentLength = getContentLength();

        try {
            while (bytesRead != -1 && (contentLength == -1 || contentLength > totalBytesRead)) {
                if (contentLength == -1) {
                    bytesRead = is.read(buffer);
                } else {
                    bytesRead = is.read(buffer, 0, (int) Math.min(buffer.length, contentLength - totalBytesRead));
                }
                if (bytesRead == -1) {
                    if (contentLength >= 0) {
                        throw new IOException(Policy.bind("exception.unexpectedEndStream")); //$NON-NLS-1$
                    }
                } else {
                    totalBytesRead += bytesRead;
                    os.write(buffer, 0, bytesRead);
                }
            }
        } finally {
            bufferPool.putBuffer(buffer);
            inputRead = true;
        }
    }
public void write(OutputStream os) throws IOException {
        Assert.isTrue(!inputRead);
        Assert.isTrue(!hasInputStream);

        int bytesRead = 0;
        int totalBytesRead = 0;
        byte[] buffer = bufferPool.getBuffer();
        long contentLength = getContentLength();

        try {
            while (bytesRead != -1 && (contentLength == -1 || contentLength > totalBytesRead)) {
                if (contentLength == -1) {
                    bytesRead = is.read(buffer);
                } else {
                    bytesRead = is.read(buffer, 0, (int) Math.min(buffer.length, contentLength - totalBytesRead));
                }
                if (bytesRead == -1) {
                    if (contentLength >= 0) {
                        throw new IOException(Policy.bind("exception.unexpectedEndStream")); //$NON-NLS-1$
                    }
                } else {
                    totalBytesRead += bytesRead;
                    os.write(buffer, 0, bytesRead);
                }
            }
        } finally {
            bufferPool.putBuffer(buffer);
            inputRead = true;
        }
    }
Writes this messages body to the given output stream. This method may
only be called once during the lifetime of this message.

@param os an output stream
@exception IOException if there is an I/O error