* Subclasses only differ in whether they save modifications to disk.
 *
 * <h2>Supported Upgrades</h2>
 *
 * <h3>Model Version Upgrades</h3>
 * <ul>
 *   <li><strong>4.0.0 → 4.1.0</strong>: Upgrades Maven 3.x POMs to Maven 4.1.0 format</li>
 * </ul>
 *
 * <h3>4.0.0 → 4.1.0 Upgrade Process</h3>
 * <ol>
 *   <li><strong>Namespace Update</strong>: Changes namespace from Maven 4.0.0 to 4.1.0 for all elements</li>

 * </ul>
 *
 * <h2>Usage Examples</h2>
 *
 * <h3>Check for Available Upgrades</h3>
 * <pre>{@code
 * mvnup check
 * }</pre>
 *
 * <h3>Apply All Upgrades</h3>
 * <pre>{@code
 * mvnup apply --all
 * }</pre>
 *
 * <h3>Upgrade to Maven 4.1.0 with Inference</h3>
 * <pre>{@code
 * mvnup apply --model 4.1.0 --infer
 * }</pre>
 *
 * <h2>Extension Points</h2>
 *

   * values. The count must be non-zero.
   *
   * <p>If these values are a sample drawn from a population, this is also an unbiased estimator of
   * the arithmetic mean of the population.
   *
   * <h3>Non-finite values</h3>
   *
   * <p>If the dataset contains {@link Double#NaN} then the result is {@link Double#NaN}. If it
   * contains both {@link Double#POSITIVE_INFINITY} and {@link Double#NEGATIVE_INFINITY} then the

   * is not guaranteed to return zero when the dataset consists of the same pair of values multiple
   * times, due to numerical errors.
   *
   * <h3>Non-finite values</h3>
   *
   * <p>If the dataset contains any non-finite values ({@link Double#POSITIVE_INFINITY}, {@link
   * Double#NEGATIVE_INFINITY}, or {@link Double#NaN}) then the result is {@link Double#NaN}.
   *

   * values. The count must be non-zero.
   *
   * <p>If these values are a sample drawn from a population, this is also an unbiased estimator of
   * the arithmetic mean of the population.
   *
   * <h3>Non-finite values</h3>
   *
   * <p>If the dataset contains {@link Double#NaN} then the result is {@link Double#NaN}. If it
   * contains both {@link Double#POSITIVE_INFINITY} and {@link Double#NEGATIVE_INFINITY} then the

<p>
The Go memory model specifies the conditions under which
reads of a variable in one goroutine can be guaranteed to
observe values produced by writes to the same variable in a different goroutine.
</p>


<h3 id="advice">Advice</h3>

<p>
Programs that modify data being simultaneously accessed by multiple goroutines
must serialize such access.
</p>

<p>

   * is not guaranteed to return zero when the dataset consists of the same pair of values multiple
   * times, due to numerical errors.
   *
   * <h3>Non-finite values</h3>
   *
   * <p>If the dataset contains any non-finite values ({@link Double#POSITIVE_INFINITY}, {@link
   * Double#NEGATIVE_INFINITY}, or {@link Double#NaN}) then the result is {@link Double#NaN}.
   *

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * <h2>Maven Core API</h2>
 *
 * <h3>Session</h3>
 *
 * <p>The {@link org.apache.maven.api.Session} interface is the main entry point for Maven operations.
 * It maintains the state of a Maven execution and provides access to all core services and components.

</p>

<h3 id="Boolean_types">Boolean types</h3>

<p>
A <i>boolean type</i> represents the set of Boolean truth values
denoted by the predeclared constants <code>true</code>
and <code>false</code>. The predeclared boolean type is <code>bool</code>;
it is a <a href="#Type_definitions">defined type</a>.
</p>

<h3 id="Numeric_types">Numeric types</h3>

<p>

</p>

<h3 id="ppc64">PPC64</h3>

<p>
This assembler is used by GOARCH values ppc64 and ppc64le.
</p>

<p>
Reference: <a href="/pkg/cmd/internal/obj/ppc64">Go PPC64 Assembly Instructions Reference Manual</a>
</p>

<h3 id="s390x">IBM z/Architecture, a.k.a. s390x</h3>

<p>
The registers <code>R10</code> and <code>R11</code> are reserved.