Thread[] threads = new Thread[10];
        for (int i = 0; i < threads.length; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                for (int j = 0; j < 10; j++) {
                    try {
                        if ((index + j) % 3 == 0) {
                            // Some failures
                            breaker.call(() -> {

👆 🔜 👀 🏧 🎓 🛠️ 🧾 (🚚 <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">🦁 🎚</a>):

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

## 🎛 🛠️ 🩺

      public int size() {
        return rest.length + 2;
      }

      @Override
      public @Nullable Object get(int index) {
        switch (index) {
          case 0:
            return first;
          case 1:
            return second;
          default:
            return rest[index - 2];
        }
      }
    };
  }

  // cloned from ImmutableCollection

            }
            this.urlStr = urlStr;

            // Parse SMB URL manually
            String remaining = urlStr.substring(6); // Remove "smb://"
            int slashIndex = remaining.indexOf('/');
            if (slashIndex == -1) {
                this.host = remaining;
                this.path = "/";
            } else {
                this.host = remaining.substring(0, slashIndex);

import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsElevateWordToLabelCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsElevateWordToLabelCB extends EsAbstractConditionBean {

    return intersectionInCurrentDomain(Range.downTo(fromElement, BoundType.forBoolean(inclusive)));
  }

  @GwtIncompatible // not used by GWT emulation
  @Override
  int indexOf(@Nullable Object target) {
    if (!contains(target)) {
      return -1;
    }
    // The cast is safe because of the contains check—at least for any reasonable Comparable class.
    @SuppressWarnings("unchecked")

import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsCrawlingInfoParamCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsCrawlingInfoParamCB extends EsAbstractConditionBean {

/// info

In this example we use invented custom headers `X-Key` and `X-Token`.

But in real cases, when implementing security, you would get more benefits from using the integrated [Security utilities (the next chapter)](../security/index.md){.internal-link target=_blank}.

///

## Dependencies errors and return values { #dependencies-errors-and-return-values }

You can use the same dependency *functions* you use normally.

            for (int i = 0; i < threadCount; i++) {
                final int index = i;
                dataArrays[i] = new byte[128];
                Arrays.fill(dataArrays[i], (byte) i);

                threads[i] = new Thread(() -> {
                    digest.sign(dataArrays[index], 0, dataArrays[index].length, request, response);
                });
            }

pkg go/types, method (*Term) Type() Type
pkg go/types, method (*TypeList) At(int) Type
pkg go/types, method (*TypeList) Len() int
pkg go/types, method (*TypeParam) Constraint() Type
pkg go/types, method (*TypeParam) Index() int
pkg go/types, method (*TypeParam) Obj() *TypeName
pkg go/types, method (*TypeParam) SetConstraint(Type)
pkg go/types, method (*TypeParam) String() string
pkg go/types, method (*TypeParam) Underlying() Type