internal open class FaultHidingSink(
  delegate: Sink,
  val onException: (IOException) -> Unit,
) : ForwardingSink(delegate) {
  private var hasErrors = false

  override fun write(
    source: Buffer,
    byteCount: Long,
  ) {
    if (hasErrors) {
      source.skip(byteCount)
      return
    }
    try {
      super.write(source, byteCount)
    } catch (e: IOException) {
      hasErrors = true
      onException(e)

    delegate().lockInterruptibly();
  }

  @Override
  public boolean tryLock() {
    return delegate().tryLock();
  }

  @Override
  public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {
    return delegate().tryLock(time, unit);
  }

  @Override
  public void unlock() {
    delegate().unlock();
  }

  @Override

    return source;
  }

  @Override
  public String getMessage() {
    return super.getMessage() + " (source: " + source + ")";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

     * @return JSON response containing the Kuromoji dictionary item
     */
    // GET /api/admin/dict/kuromoji/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> get$setting(final String dictId, final long id) {
        return asJson(new ApiResult.ApiConfigResponse()
                .setting(kuromojiService.getKuromojiItem(dictId, id).map(entity -> createEditBody(entity, dictId)).orElseGet(() -> {

     * @return JSON response containing the entry
     */
    // GET /api/admin/dict/protwords/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> get$setting(final String dictId, final long id) {
        return asJson(new ApiResult.ApiConfigResponse()
                .setting(protwordsService.getProtwordsItem(dictId, id).map(entity -> createEditBody(entity, dictId)).orElseGet(() -> {

Details about the `async def` syntax for *path operation functions* and some background about asynchronous code, concurrency, and parallelism.

## In a hurry? { #in-a-hurry }

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

If you are using third party libraries that tell you to call them with `await`, like:

```Python
results = await some_library()
```

        if (o == null) {
            return null;
        } else if (o instanceof BigInteger) {
            return (BigInteger) o;
        } else {
            final Long l = LongConversionUtil.toLong(o, pattern);
            if (l == null) {
                return null;
            }
            return BigInteger.valueOf(l);
        }
    }

/**
 * Exception thrown when an error occurs in a {@link Converter}.
 *
 * @author higa
 */
public class ConverterRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = 1L;

    /**
     * The name of the property.
     */
    private final String propertyName;

    /**
     * The value that caused the conversion error.
     */

 *
 * @author koichik
 */
public class FieldNotStaticRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = -7791347225750660981L;

    /**
     * The target class.
     */
    private final Class<?> targetClass;

    /**
     * The name of the field.
     */
    private final String fieldName;

 *
 * @author koichik
 */
public class MethodNotStaticRuntimeException extends ClRuntimeException {

    private static final long serialVersionUID = 7186052234464152208L;

    /**
     * The target class.
     */
    private final Class<?> targetClass;

    /**
     * The name of the method.
     */