part of a class but strongly advise against making the contribution as part of
the class. So if you have code you wrote for a class feel free to submit it.

Please, please, please do not assign contributing to Elasticsearch as part of a
class. If you really want to assign writing code for Elasticsearch as an
assignment then the code contributions should be made to your private clone and

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

 * </ul>
 *
 * <p>For the main artifact and attached artifacts, the
 * {@link org.apache.maven.api.services.ArtifactManager ArtifactManager} service must be used
 * to point the artifact to a {@link Path} during the packaging phase.</p>
 *
 * @since 4.0.0
 * @see Project#getMainArtifact()
 * @see Project#getPomArtifact()
 * @see org.apache.maven.api.services.ProjectManager#attachArtifact(Session, Project, Path)

            **BUG!** This issue should not be marked stale by the "stale" workflow.
            Please report it to @gradle/bt-support team
          days-before-issue-close: -1
          close-issue-message: >
            **BUG!** This issue should not be closed by the "stale" workflow.
            Please report it to @gradle/bt-support team
          close-issue-reason: not_planned

### AI-assisted contributions

If you use AI tools when contributing to Gradle, please review our [AI Policy](AI_POLICY.md).

### Additional help

If you run into any trouble, please reach out to us on the issue you are working on.
There is a `#contributing` channel on the community Slack which you can use
to ask any questions.

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and
https://github.com/google/guava/blob/master/CONTRIBUTING.md
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We generally welcome PRs for fixing trivial bugs or typos, but please refrain
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labels: kind/bug
body:
  - type: textarea
    id: problem
    attributes:
      label: What happened?
      description: |
        Please provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner.
        If this matter is security related, please disclose it privately via https://kubernetes.io/security
    validations:
      required: true

  - type: textarea
    id: expected

Contributing
============

If you would like to contribute code to OkHttp you can do so through GitHub by
forking the repository and sending a pull request.

When submitting code, please make every effort to follow existing conventions
and style in order to keep the code as readable as possible. Please also make
sure your code compiles by running `./gradlew check`. Checkstyle failures
during compilation indicate errors in your style and can be viewed in the

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.connection

/**
 * Used when we were unsuccessful in the planning phase of a connection:
 *
 *  * A DNS lookup failed
 *  * The configuration is incapable of carrying the request, such as when the client is configured
 *    to use `H2_PRIOR_KNOWLEDGE` but the URL's scheme is `https:`.