} catch (final IOException e) {
                    logger.warn("Failed to delete {}.", file.getAbsolutePath(), e);
                }
            }
        }

    }

    /**
     * Detects the MIME type of the content.
     *
     * @param out the deferred file output stream
     * @return the detected MIME type
     * @throws IOException if an I/O error occurs
     */

   *
   * @param it an iterator of I/O suppliers that will provide each substream
   */
  public MultiInputStream(Iterator<? extends ByteSource> it) throws IOException {
    this.it = checkNotNull(it);
    advance();
  }

  @Override
  public void close() throws IOException {
    if (in != null) {
      try {
        in.close();
      } finally {
        in = null;
      }
    }
  }

     * @param access the desired access rights
     * @param rid the relative identifier of the alias
     * @throws IOException if an I/O error occurs during handle creation
     */
    public SamrAliasHandle(final DcerpcHandle handle, final SamrDomainHandle domainHandle, final int access, final int rid)
            throws IOException {
        this.handle = handle;

    }

    /**
     * Establish RDMA connection
     *
     * @throws IOException if connection fails
     */
    public abstract void connect() throws IOException;

    /**
     * Send data using RDMA
     *
     * @param data data buffer to send
     * @param region registered memory region for the data
     * @throws IOException if send fails
     */

   * writer each time it is called.
   *
   * <p>The caller is responsible for ensuring that the returned writer is closed.
   *
   * @throws IOException if an I/O error occurs while opening the writer
   */
  public abstract Writer openStream() throws IOException;

  /**
   * Opens a new buffered {@link Writer} for writing to this sink. The returned stream is not

    }

    // Error case: disconnect throws IOException
    @Test
    @DisplayName("disconnect throws IOException when underlying close fails")
    void disconnect_throwsIOException() throws Exception {
        doThrow(new java.io.IOException("close error")).when(transport).disconnect(true, true);
        java.io.IOException ex = assertThrows(java.io.IOException.class, () -> transport.disconnect(true, true));

    @BeforeEach
    void setUp() throws IOException {
        mimeMap = new MimeMap();
    }

    @Nested
    @DisplayName("getMimeType with extension only")
    class GetMimeTypeWithExtension {

        @Test
        @DisplayName("Should return correct mime type for known extensions")
        void testKnownExtensions() throws IOException {
            assertEquals("application/pdf", mimeMap.getMimeType("pdf"));

        private long nextKey = 1;
        private Long peekedKey = null;
        private IOException sendException = null;
        private IOException recvException = null;
        private boolean connectFails = false;
        private boolean disconnectResult = false;

        @Override
        protected long makeKey(Request request) throws IOException {
            return nextKey++;
        }

        @Override

   *
   * @throws IOException if an I/O error occurs while reading from this source or if {@code
   *     processor} throws an {@code IOException}
   * @since 16.0
   */
  @CanIgnoreReturnValue // some processors won't return a useful result
  @ParametricNullness
  public <T extends @Nullable Object> T read(ByteProcessor<T> processor) throws IOException {
    checkNotNull(processor);

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import java.io.IOException;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.dcerpc.DcerpcHandle;