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import java.io.FileInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.util.zip.GZIPInputStream;
public class Main {
public static void main(String[] args) throws IOException {
FileInputStream fin = new FileInputStream(args[0]);
GZIPInputStream gzin = new GZIPInputStream(fin);
ReadableByteChannel in = Channels.newChannel(gzin);
WritableByteChannel out = Channels.newChannel(System.out);
ByteBuffer buffer = ByteBuffer.allocate(65536);
while (in.read(buffer) != -1) {
buffer.flip();
out.write(buffer);
buffer.clear();
}
}
}
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