Copy ALL available data from one stream into another with Channel : FileChannel « File Input Output « Java

Copy ALL available data from one stream into another with Channel

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//package org.mbari.util;

import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;

 * @author brian
public class IOUtilities {

     * Copy ALL available data from one stream into another
     * @param in
     * @param out
     * @throws IOException
    public static void copy(InputStream in, OutputStream out) throws IOException {
        ReadableByteChannel source = Channels.newChannel(in);
        WritableByteChannel target = Channels.newChannel(out);

        ByteBuffer buffer = ByteBuffer.allocate(16 * 1024);
        while ( != -1) {
            buffer.flip(); // Prepare the buffer to be drained
            while (buffer.hasRemaining()) {
            buffer.clear(); // Empty buffer to get ready for filling





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