* @since 14.0
 */
// Coffee's for {@link Closer closers} only.
@J2ktIncompatible
@GwtIncompatible
public final class Closer implements Closeable {
  /** Creates a new {@link Closer}. */
  public static Closer create() {
    return new Closer(SUPPRESSING_SUPPRESSOR);
  }

  @VisibleForTesting final Suppressor suppressor;

  // only need space for 2 elements in most cases, so try to use the smallest array possible

            }
        }, "Multiple close operations should not cause issues");

        // Verify iterator still works after multiple closes
        assertFalse(emptyIterator.hasNext(), "Iterator should still work after multiple closes");
        assertNull(emptyIterator.next(), "Iterator should still return null after multiple closes");
    }

    @Test
    @DisplayName("EmptyIterator should handle remove operations multiple times")

        // Verify interactions
        verify(tree, times(1)).send(isA(Trans2FindFirst2.class), any(Trans2FindFirst2Response.class));
        // Verify that Trans2FindNext2 was sent twice for fetching more entries
        verify(tree, times(2)).send(isA(Trans2FindNext2.class), any(Trans2FindFirst2Response.class));

        // Close should have sent FindClose2 exactly once

        assertSame(info, result);
        verify(tree, atLeastOnce()).send(any(CommonServerMessageBlockRequest.class), any(), any(), any());
    }

    // close() should close underlying handle with 0L when valid
    @Test
    @DisplayName("close() closes underlying handle when valid")
    void close_validHandle_invokesClose() throws Exception {
        when(handle.isValid()).thenReturn(true);

        assertEquals("one", it.next().getName()); // consume initial
        // Next call should handle CIFSException and close iterator
        assertFalse(it.hasNext()); // After error, hasNext should return false

        // Assert
        verify(tree, times(1)).release();
    }

    @Test
    @DisplayName("close() closes when there is a next element and releases handle")
    void explicitClose() throws Exception {
        // Arrange

  when {
    this.isNullOrEmpty() -> emptyList()
    this.size == 1 -> Collections.singletonList(this[0])
    else -> this.clone().asList().unmodifiable()
  }

/** Closes this, ignoring any checked exceptions. */
internal fun Socket.closeQuietly() {
  try {
    close()
  } catch (e: AssertionError) {
    throw e
  } catch (rethrown: RuntimeException) {
    if (rethrown.message == "bio == null") {

  }

  @Test
  fun trailersWithServerTruncatedResponseHttp2() {
    trailersWithServerTruncatedResponse(Protocol.HTTP_2)
  }

  /**
   * If the server closes the connection while the client is consuming the response body, attempts
   * to peek or read the trailers should throw.
   */
  private fun trailersWithServerTruncatedResponse(protocol: Protocol) {

        }

        @Test
        @DisplayName("close() closes handle; does not close file when not unshared")
        void closeClosesHandle() throws Exception {
            SmbFileInputStream in = newStream();
            in.close();
            verify(mockHandle, times(1)).close();
            verify(mockFile, never()).close();
        }

        @Test

        SmbFileHandleImpl fh = mock(SmbFileHandleImpl.class);
        doReturn(fh).when(raf).ensureOpen();

        // Act
        raf.open();

        // Assert: open() ensures handle and closes it via try-with-resources
        verify(raf, times(1)).ensureOpen();
        verify(fh, times(1)).close();
    }

    @Test
    @DisplayName("close(): clears cache and closes handle; does not close shared SmbFile")

  /**
   * Closes the response body. Equivalent to `body().close()`.
   *
   * Prior to OkHttp 5.0, it was an error to close a response that is not eligible for a body. This
   * includes the responses returned from [cacheResponse], [networkResponse], and [priorResponse].
   */
  override fun close() {
    body.close()
  }