// Regression test for case where DecodingException was swallowed by default implementation
        // of
        // InputStream.read(byte[], int, int)
        // See https://github.com/google/guava/issues/3542
        Reader reader = new StringReader(cannotDecode);
        InputStream decodingStream = encoding.decodingStream(reader);
        try {
          ByteStreams.exhaust(decodingStream);

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;

import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/** Returns a random portion of the requested bytes on each call. */
@NullUnmarked
class RandomAmountInputStream extends FilterInputStream {
  private final Random random;

  public RandomAmountInputStream(InputStream in, Random random) {
    super(checkNotNull(in));

    }

    /**
     * Opens a URL and returns an {@link InputStream}.
     *
     * @param url
     *            The URL. Must not be {@literal null}.
     * @return An {@link InputStream} to read the resource represented by the URL.
     */
    public static InputStream openStream(final URL url) {
        assertArgumentNotNull("url", url);

        try {

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotEmpty;
import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.exception.ResourceNotFoundRuntimeException;
import org.codelibs.core.jar.JarFileUtil;

  /**
   * Returns the number of bytes in that will returned by [bytes], or [byteStream], or -1 if
   * unknown.
   */
  abstract fun contentLength(): Long

  fun byteStream(): InputStream = source().inputStream()

  abstract fun source(): BufferedSource

  /**
   * Returns the response as a byte array.
   *
   * This method loads entire response body into memory. If the response body is very large this

    }

    /**
     * Gets the response body as an InputStream.
     * If the response body is stored as bytes, returns a ByteArrayInputStream.
     * If the response body is stored as a file, returns a FileInputStream.
     *
     * @return the response body as an InputStream, or null if no response body is available

        verifyToken(() -> uploadpage(form.dictId));
        return protwordsService.getProtwordsFile(form.dictId).map(file -> {
            try (InputStream inputStream = form.protwordsFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);

            InputStream is = new ByteArrayInputStream("test".getBytes());
            assertThrows(IOException.class, () -> Transport.readn(is, new byte[5], 0, 10));
        }

        @Test
        @DisplayName("readn should return 0 when no more bytes available")
        void shouldReturnZeroWhenStreamEmpty() throws IOException {
            InputStream is = new ByteArrayInputStream("Hi".getBytes());

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;