4. Submit a pull request

    operation ->> client: Return response to client
    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

/// info | 信息

只会向客户端发送**一次响应**。它可能是某个错误响应，或者是来自 *路径操作* 的响应。

在其中一个响应发送之后，就不能再发送其他响应了。

            if (logger.isInfoEnabled()) {
                logger.info("Finished Crawler.");
            }

            return Constants.EXIT_OK;
        } catch (final Throwable t) {
            logger.warn("Crawl task failed with an exception.", t);
            return Constants.EXIT_FAIL;
        } finally {
            pathMappingHelper.removePathMappingList(options.sessionId);

    private final List<Header> requestHeaderList = new ArrayList<>();

    /** Map of HTTP client properties */
    private final Map<String, Object> httpClientPropertyMap = new HashMap<>();

    /** Task for monitoring idle connections */
    private TimeoutTask connectionMonitorTask;

    /** Connection timeout in milliseconds */
    protected Integer connectionTimeout;

      "coverage" : {
        "per_commit" : [ "linux", "windows", "macOs" ]
      }
    } ]
  }, {
    "testId" : "org.gradle.performance.regression.android.RealLifeAndroidBuildPerformanceTest.calculate task graph with test finalizer",
    "groups" : [ {
      "testProject" : "largeAndroidBuild",
      "coverage" : {
        "per_commit" : [ "linux" ]
      }
    } ]
  }, {

        String api = "foo.json"
        setupRestResources([api])

        when:
        def result = gradleRunner("copyRestApiSpecsTask").build()

        then:
        result.task(':copyRestApiSpecsTask').outcome == TaskOutcome.NO_SOURCE
        result.task(':copyYamlTestsTask').outcome == TaskOutcome.NO_SOURCE
    }

    def "restResources copies API by default for projects with tests"() {
        given:
        internalBuild()

import org.gradle.api.model.ObjectFactory;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFiles;
import org.gradle.api.tasks.Internal;
import org.gradle.api.tasks.Nested;
import org.gradle.api.tasks.OutputDirectory;
import org.gradle.api.tasks.SkipWhenEmpty;
import org.gradle.api.tasks.TaskAction;
import org.gradle.api.tasks.util.PatternFilterable;
import org.gradle.api.tasks.util.PatternSet;
import org.gradle.internal.Factory;

        }
        """

        when:
        def result = gradleRunner("yamlRestTest").build()

        then:
        result.task(':yamlRestTest').outcome == TaskOutcome.NO_SOURCE
        result.task(':copyYamlTestsTask').outcome == TaskOutcome.NO_SOURCE
        result.task(':copyRestApiSpecsTask').outcome == TaskOutcome.NO_SOURCE
    }

    def "yamlRestTest executes and copies api and tests to correct source set"() {

* There can be **multiple processes** of the **same program** running at the same time.

If you check out the "task manager" or "system monitor" (or similar tools) in your operating system, you will be able to see many of those processes running.

    final int mask;

    PowerOfTwoStriped(int stripes) {
      Preconditions.checkArgument(stripes > 0, "Stripes must be positive");
      this.mask = stripes > Ints.MAX_POWER_OF_TWO ? ALL_SET : ceilToPowerOfTwo(stripes) - 1;
    }

    @Override
    final int indexFor(Object key) {
      int hash = smear(key.hashCode());
      return hash & mask;
    }

    @Override