return kuromojiService.getKuromojiFile(form.dictId).map(file -> {
            try (InputStream inputStream = form.kuromojiFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsFailedToUploadKuromojiFile(GLOBAL),

        try {
            thumbnailJob.executeThumbnailGenerator();
            fail("Should throw JobProcessingException");
        } catch (JobProcessingException e) {
            assertTrue(e.getMessage().contains("Thumbnail Process terminated."));
        } catch (NullPointerException e) {
            // May occur if ServletContext is not fully initialized
            // This is acceptable in test environment
        }

    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      Queues.drain(q, ImmutableList.of(), 100, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {
    }
  }

  public void testDrainUninterruptibly_doesNotThrow() throws Exception {
    for (BlockingQueue<Object> q : blockingQueues()) {

    box.value = "";
    openURL(url);
    return false;  // cancel form submission
  };

  var url = urlForInput(t);
  if (url) {
    return success(url);
  }

  console.log("no match for text: " + t)
  return false;

    }
    return comparator;
  }

  @Override
  public boolean containsKey(Object key) {
    try {
      return delegate.containsKey(checkValid(key));
    } catch (NullPointerException | ClassCastException e) {
      return false;
    }
  }

  @Override
  public boolean containsValue(Object value) {
    return delegate.containsValue(value);
  }

  @Override

        checkVersionParsing("1.7.3.0", 0, 0, 0, 0, "1.7.3.0");
        checkVersionParsing("1.7.3.0-1", 0, 0, 0, 0, "1.7.3.0-1");
        checkVersionParsing("PATCH-1193602", 0, 0, 0, 0, "PATCH-1193602");
        checkVersionParsing("5.0.0alpha-2006020117", 0, 0, 0, 0, "5.0.0alpha-2006020117");
        checkVersionParsing("1.0.0.-SNAPSHOT", 0, 0, 0, 0, "1.0.0.-SNAPSHOT");

                }

                try {
                    return client.execute(request);
                } catch (final MaxLengthExceededException e) {
                    throw e;
                } catch (final Exception e) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Failed to access to {}", request.getUrl(), e);
                    }

### 9.2 Thread Safety
- Use concurrent data structures for lease storage
- Minimize lock contention in hot paths
- Async handling of lease breaks

### 9.3 Network Efficiency
- Batch lease requests when possible
- Implement lease key reuse for related files
- Optimize lease break acknowledgment timing

## 10. Error Handling

### 10.1 Lease Break Timeout
```java

        body.crudMode = CrudMode.CREATE;
        final DataConfig dataConfig = getDataConfig(body).map(entity -> {
            try {
                dataConfigService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));

              references.remove(this);
              if (!serverSocket.isClosed()) {
                try {
                  serverSocket.close();
                  finalizeReferentRan.set(true);
                } catch (IOException e) {
                  throw new UncheckedIOException(e);
                }
              }
            }
          };
      references.add(reference);
      return myServer;
    }