import io.netty.buffer.ByteBuf;
import io.netty.buffer.UnpooledByteBufAllocator;
import io.netty.util.internal.PlatformDependent;

/** A real third-party library that uses Unsafe: allocate one direct Netty buffer and use it. Compile and run with netty-common + netty-buffer on the class path. */
public class NettyProbe {
    public static void main(String[] args) {
        System.out.println("netty sees Unsafe: " + PlatformDependent.hasUnsafe());
        ByteBuf buf = UnpooledByteBufAllocator.DEFAULT.directBuffer(16);
        buf.writeLong(0xCAFEBABEL);
        System.out.println("direct=" + buf.isDirect() + " hasMemoryAddress=" + buf.hasMemoryAddress() + " readLong=" + Long.toHexString(buf.readLong()));
        buf.release();
        System.out.println("done");
    }
}