Thread th = new Thread(() -> {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException ignore) {}
            deferred.reject(new Exception());
        });
        th.start();

        final CountDownLatch latch = new CountDownLatch(1);
        deferred.promise().error(error -> latch.countDown());

 *   It is similar to a Promise in JavaScript.
 *   It allows you to register callbacks that will be executed when the computation is complete,
 *   either successfully (resolve) or with an error (reject).
 * </p>
 *
 * <p>
 *   The Deferred class has a Promise inner class that allows you to register callbacks
 *   to be executed when the computation is complete.

                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

            @Override
            public void onFailure(final Exception e) {
                deferred.reject(e);
            }
        });
    }

        }
        return deferred.promise();
    }

    /**
     * Processes the request.
     * @param client The OpenSearch client.
     * @param deferred The Deferred object to resolve or reject the response.
     */
    protected abstract void processRequest(Client client, Deferred<T> deferred);

    /**
     * Returns a validation error message, or null if there are no errors.

#### Connection Timeouts
```java
// Increase timeout values
client.setConnectionTimeout(60000);  // 60 seconds
client.setSocketTimeout(120000);     // 120 seconds
```

#### Memory Issues
```java
// Reduce concurrent threads and batch sizes
crawler.crawlerContext.setNumOfThread(5);
crawler.crawlerContext.setMaxAccessCount(1000);
```

#### SSL/TLS Issues
```java
// Configure SSL settings

                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

            @Override
            public void onFailure(final Exception e) {
                deferred.reject(new SuggesterException(e.getMessage(), e));

                        new SuggestIndexResponse(numberOfSuggestDocs, numberOfInputDocs, errors, System.currentTimeMillis() - start));
            } catch (final Throwable t) {
                deferred.reject(t);
            } finally {
                queryLogReader.close();
            }
        });
        return deferred.promise();
    }

    /**
     * Indexes documents from an array of maps.

||[],b=[a,b.slice?b.slice():b],d?i.push(b):j(b)),this},fire:function(){return k.fireWith(this,arguments),this},fired:function(){return!!c}};return k},n.extend({Deferred:function(a){var b=[["resolve","done",n.Callbacks("once memory"),"resolved"],["reject","fail",n.Callbacks("once memory"),"rejected"],["notify","progress",n.Callbacks("memory")]],c="pending",d={state:function(){return c},always:function(){return e.done(arguments).fail(arguments),this},then:function(){var a=arguments;return n.Deferr...

                    }
                }
            }).start();
        }

        startLatch.countDown();
        endLatch.await();

        // Verify all rules were added (can't check exact count due to thread-safe implementation)
        ResponseData responseData = new ResponseData();
        assertNotNull(threadSafeManager.getRule(responseData)); // At least one rule should match
    }

    /**

      <match value="var Prototype={" type="string" offset="0"/>
      <match value="function $w(t){" type="string" offset="0"/>
      <!-- React -->
      <match value="/** @license React" type="string" offset="0"/>
      <match value="/**" type="string" offset="0">
         <match value="* React " offset="4:8"/>
      </match>
    </magic>
  </mime-type>

  <mime-type type="application/json">