* When making TLS connections with multiple [connection specs](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-connection-spec/), these are attempted in sequence until the TLS handshake succeeds.

### [Connections](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-connection/)

          "versioned-cache"
        ],
        "parallelizationMethod": {
          "name": "TestDistribution"
        }
      },
      {
        "subprojects": [
          "build-init-specs",
          "build-option",
          "configuration-cache-base",
          "file-temp",
          "internal-testing",
          "io",
          "kotlin-dsl-provider-plugins",
          "language-java",

Specific security vs. connectivity decisions are implemented by [ConnectionSpec](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-connection-spec/). OkHttp includes four built-in connection specs:

 * `RESTRICTED_TLS` is a secure configuration, intended to meet stricter compliance requirements.
 * `MODERN_TLS` is a secure configuration that connects to modern HTTPS servers.

            <option value="$PROJECT_DIR$/platforms/software/build-init" />
            <option value="$PROJECT_DIR$/platforms/software/build-init-specs" />
            <option value="$PROJECT_DIR$/platforms/software/build-init-specs-api" />
            <option value="$PROJECT_DIR$/platforms/software/credentials" />
            <option value="$PROJECT_DIR$/platforms/software/credentials-api" />

  // From https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Mac
  // TODO(cpovirk): Evaluate newer list:
  // https://docs.oracle.com/en/java/javase/25/docs/specs/security/standard-names.html#mac-algorithms
  private static final ImmutableTable<String, SecretKey, HashFunction> ALGORITHMS =
      new ImmutableTable.Builder<String, SecretKey, HashFunction>()

  // but essentially each line will be a call to a Preconditions method that, but for a documented
  // change would be a compiler error.
  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
  // how javac selects overloads
  @SuppressWarnings("null")
  public void overloadSelection() {
    Boolean boxedBoolean = null;
    boolean aBoolean = true;

  // but essentially each line will be a call to a Preconditions method that, but for a documented
  // change would be a compiler error.
  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
  // how javac selects overloads
  @SuppressWarnings("null")
  public void overloadSelection() {
    Boolean boxedBoolean = null;
    boolean aBoolean = true;

   * That statement compiles only if {@link FluentIterable#concat concat(aIterable, bIterable)}
   * returns a {@link FluentIterable} of elements of an anonymous type whose supertypes are the <a
   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.9">intersection</a>
   * of the supertypes of {@code A} and the supertypes of {@code B}.
   */
  public void testConcatIntersectionType() {
    Iterable<A> aIterable = ImmutableList.of();

      // extensive testing
      try {
        return parseFloat(string);
      } catch (NumberFormatException e) {
        // Float.parseFloat has changed specs several times, so fall through
        // gracefully
      }
    }
    return null;
  }

      // extensive testing
      try {
        return parseDouble(string);
      } catch (NumberFormatException e) {
        // Double.parseDouble has changed specs several times, so fall through
        // gracefully
      }
    }
    return null;
  }