SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE....

        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        <module name="StringLiteralEquality"/>
        <module name="UnnecessaryParentheses">
            <!-- defaults are too strict, see https://github.com/checkstyle/checkstyle/issues/10946 -->

    /**
     * Denotes validation as performed by Maven 3.1. This validation level is meant for new projects.
     */
    int VALIDATION_LEVEL_MAVEN_3_1 = 31;

    /**
     * Denotes strict validation as recommended by the current Maven version.
     */
    int VALIDATION_LEVEL_STRICT = VALIDATION_LEVEL_MAVEN_3_0;

    /**

* **NEW:** TLSv1.3
* TLSv1.2
* TLSv1.1
* TLSv1

##### COMPATIBLE_TLS versions

* TLSv1

[OkHttp 3.11][OkHttp311]
------------------------

_2018-07-12_

Added a new extra strict RESTRICTED_TLS configuration inspired by [Google Cloud’s similar policy][googlecloud_ssl_policy]. It is appropriate when both the host platform
(JVM/Conscrypt/Android) and target webserver are current.

    InetAddress ipv4Addr;
    try {
      ipv4Addr = InetAddress.getByName(ipStr);
    } catch (UnknownHostException e) {
      // OK: this is probably Android, which is stricter.
      return;
    }
    assertThat(InetAddresses.forString(ipStr)).isEqualTo(ipv4Addr);
    assertTrue(InetAddresses.isInetAddress(ipStr));
  }

 */

   * MyList} to save space. So long as {@code MyList} has all the public supertypes of {@code
   * MySubList}, this is safe. For these cases, for which {@code reserializeAndAssert} is too
   * strict, use {@link #reserialize}.
   *
   * @return the re-serialized object
   * @throws RuntimeException if the specified object was not successfully serialized or
   *     deserialized

                return "lang";
            }
        };
        ComponentUtil.setFessConfig(mockConfig);

        // Setup mock request manager with mixed case
        // LocaleUtils.toLocale is strict about case - it will throw exception for invalid format
        RequestManager mockRequestManager = createMockRequestManager("En_Us");

        // Execute

## Official Guide { #official-guide }

Pydantic has an official [Migration Guide](https://docs.pydantic.dev/latest/migration/) from v1 to v2.

It also includes what has changed, how validations are now more correct and strict, possible caveats, etc.

You can read it to understand better what has changed.

## Tests { #tests }

Make sure you have [tests](../tutorial/testing.md) for your app and you run them on continuous integration (CI).

    assertTrue(Double.isNaN(DoubleMath.log2(Double.NEGATIVE_INFINITY)));
    assertTrue(Double.isNaN(DoubleMath.log2(Double.NaN)));
  }

  @GwtIncompatible // StrictMath
  @SuppressWarnings("strictfp") // Guava still supports Java 8
  private strictfp double trueLog2(double d) {
    double trueLog2 = StrictMath.log(d) / StrictMath.log(2);
    // increment until it's >= the true value
    while (StrictMath.pow(2.0, trueLog2) < d) {