import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.net.URLUtil;
import org.codelibs.core.nio.ChannelUtil;
import org.codelibs.core.timer.TimeoutManager;

/**
 * Utility class for handling {@link File}.
 * <p>
 * <strong>SECURITY NOTE:</strong> When accepting file paths from untrusted sources,