import java.io.File;
import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
-import org.onap.aaf.misc.env.Env;
import org.onap.aaf.misc.env.EnvJAXB;
import org.onap.aaf.misc.env.LogTarget;
import org.onap.aaf.misc.env.Store;
-import org.onap.aaf.misc.env.TimeTaken;
import org.onap.aaf.misc.env.Trans;
/*
* CachingFileAccess