getMap().putAll(emptyMap());
    expectUnchanged();
  }

  @MapFeature.Require(absent = SUPPORTS_PUT)
  public void testPutAll_unsupportedNothing() {
    try {
      getMap().putAll(emptyMap());
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAll_supportedNonePresent() {
    putAll(createDisjointCollection());

          } catch (CancellationException e) {
            assertTrue(merger == Merger.allMerger);
            inputs.assertHasImmediateCancel(iFuture, jFuture, e);
          } catch (ExecutionException e) {
            assertTrue(merger == Merger.allMerger);
            inputs.assertHasImmediateFailure(iFuture, jFuture, e);
          } catch (TimeoutException e) {

          } catch (CancellationException e) {
            assertTrue(merger == Merger.allMerger);
            inputs.assertHasImmediateCancel(iFuture, jFuture, e);
          } catch (ExecutionException e) {
            assertTrue(merger == Merger.allMerger);
            inputs.assertHasImmediateFailure(iFuture, jFuture, e);
          } catch (TimeoutException e) {

      try {
        try {
          urls.add(new File(entry).toURI().toURL());
        } catch (SecurityException e) { // File.toURI checks to see if the file is a directory
          urls.add(new URL("file", null, new File(entry).getAbsolutePath()));
        }
      } catch (MalformedURLException e) {
        throw new AssertionError("malformed class path entry: " + entry, e);
      }
    }

     *
     * @throws IOException if a network error occurs
     */

    @Override
    public void close() throws IOException {
        try {
            file.close();
            tmp = null;
        } catch (final SmbException se) {
            throw seToIoe(se);
        }
    }

    /**
     * Reads a byte of data from this input stream.
     *
     * @throws IOException if a network error occurs
     */

      try {
        SocketHandler(connectionIndex, raw, firstExchangePeek).handle()
      } catch (e: IOException) {
        logger.fine("$this connection from ${raw.inetAddress} failed: $e")
      } catch (e: Exception) {
        logger.log(Level.SEVERE, "$this connection from ${raw.inetAddress} crashed", e)
      }
    }
  }

                    preauthService.finalizeSession(sessionId);
                } catch (Exception e) {
                    fail("Concurrent session handling failed: " + e.getMessage());
                } finally {
                    latch.countDown();
                }
            });
        }

        assertTrue(latch.await(10, TimeUnit.SECONDS));
        executor.shutdown();
    }

    @Test

   */
  @JvmOverloads
  fun charset(defaultValue: Charset? = null): Charset? {
    val charset = parameter("charset") ?: return defaultValue
    return try {
      Charset.forName(charset)
    } catch (_: IllegalArgumentException) {
      defaultValue // This charset is invalid or unsupported. Give up.
    }
  }

  /**
   * Returns the parameter [name] of this media type, or null if this media type does not define

            .isNotEqualTo(paramType);
      } catch (IllegalArgumentException notSubtype1) {
        // The raw class isn't even a subclass.
      }
    }
    if (!spec.suppressGetSupertype()) {
      try {
        assertThat(getSupertype(paramType, TypeToken.of(returnType).getRawType()))
            .isNotEqualTo(returnType);
      } catch (IllegalArgumentException notSubtype2) {

    }

    @Test
    void testActivityTracking() {
        long initialTime = channelInfo.getLastActivityTime();

        // Wait a bit and update activity
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }

        channelInfo.updateActivity();
        assertTrue(channelInfo.getLastActivityTime() > initialTime);