*/
    @Nonnull
    default Optional<InputStream> stdIn() {
        return Optional.ofNullable(parserRequest().stdIn());
    }

    /**
     * Returns the output stream for the Maven execution, if running in embedded mode.
     *
     * @return an {@link Optional} containing the output stream, or empty if not applicable
     */
    @Nonnull

    /**
     * Gets the current project (if any).
     *
     * @return The current project or {@code null} if not applicable.
     */
    MavenProject getProject();

    /**
     * Gets the current mojo execution (if any).
     *
     * @return The current mojo execution or {@code null} if not applicable.
     */
    MojoExecution getMojoExecution();

    /**
     * Gets the exception that caused the event (if any).

            UpgradeContext context = createMockContext(options);

            assertTrue(strategy.isApplicable(context), "Strategy should be applicable when --plugins is true");
        }

        @Test
        @DisplayName("should be applicable when --all option is specified")
        void shouldBeApplicableWhenAllOptionSpecified() {
            UpgradeOptions options = mock(UpgradeOptions.class);

 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the

#### What type of PR is this?

<!--
Add one of the following kinds:
/kind bug
/kind dependency
/kind cleanup
/kind documentation
/kind feature

Optionally add one or more of the following kinds if applicable:
/kind api-change
/kind deprecation
/kind failing-test
/kind flake
/kind regression
-->

#### What this PR does / why we need it:

#### Which issue(s) this PR is related to:
<!--

 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the

 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express

                    Arguments.of(true, "4.0.0", true, "Should be applicable when --all is specified (overrides model)"),
                    Arguments.of(null, null, false, "Should not be applicable by default"),
                    Arguments.of(false, null, false, "Should not be applicable when --all=false"),
                    Arguments.of(null, "4.0.0", false, "Should not be applicable for same version (4.0.0)"),

            UpgradeContext context = createMockContext(options);

            assertTrue(strategy.isApplicable(context), "Strategy should be applicable when --infer is true");
        }

        @Test
        @DisplayName("should be applicable when --all option is specified")
        void shouldBeApplicableWhenAllOptionSpecified() {
            UpgradeOptions options = mock(UpgradeOptions.class);

 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.