UpgradeContext context = createMockContext();
            UpgradeResult result = strategy.doApply(context, pomMap);

            // Strategy should handle malformed POMs gracefully
            assertNotNull(result, "Result should not be null");
            assertTrue(result.processedPoms().contains(Paths.get("pom.xml")), "POM should be marked as processed");
        }

            return Stream.of(
                    Arguments.of(
                            "http://maven.apache.org/POM/4.0.0",
                            "4.0.0",
                            "4.1.0",
                            "http://maven.apache.org/POM/4.1.0",
                            "4.1.0",
                            1,
                            "Should upgrade from 4.0.0 to 4.1.0"),

 * </ul>
 * <p>
 * <b>Mixin Handling</b>: Mixins are only supported in model version 4.2.0 or later. If a POM contains mixins:
 * <ul>
 *   <li>Setting {@code preserve.model.version=true} preserves them in the consumer POM with model version 4.2.0</li>
 *   <li>Setting {@code maven.consumer.pom.flatten=true} removes them during transformation</li>

 public synchronized class SomeClass { public void SomeClass(); } pom.xml 4.0.0 org.apache.maven.its.mng3906 e 0.1 jar maven-core-it file:///${basedir}/repo true true . pom.xml src/** src/main/resources src/main/java/org/apache/maven/its/mng3906/SomeClass.java src/main/java/org/apache/maven/its/mng3906/SomeClass.java package org.apache.maven.its.mng3906; public class SomeClass { } META-INF/maven/org.apache.maven.its.mng3906/e/pom.xml 4.0.0 org.apache.maven.its.mng3906 e 0.1 jar maven-core-it fil...

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>test</artifactId>
    <version>0.1-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>

        return new File(target, "pom.xml");
    }

    protected MavenExecutionRequest createMavenExecutionRequest(File pom) throws Exception {
        MavenExecutionRequest request = new DefaultMavenExecutionRequest()
                .setRootDirectory(pom != null ? pom.toPath().getParent() : null)
                .setPom(pom)
                .setProjectPresent(true)
                .setShowErrors(true)

        }

        return e;
    }

    @Override
    public MavenProject build(File pom, ProjectBuilderConfiguration configuration) throws ProjectBuildingException {
        ProjectBuildingRequest request = injectSession(toRequest(configuration));

        try {
            return projectBuilder.build(pom, request).getProject();
        } catch (ProjectBuildingException e) {
            throw transformError(e);

    }

    private SimpleProblemCollector validateRaw(String pom) throws Exception {
        return validateRaw(pom, UnaryOperator.identity());
    }

    @SuppressWarnings("SameParameterValue")
    private SimpleProblemCollector validateEffective(String pom, int level) throws Exception {
        return validateEffective(pom, mbr -> mbr.setValidationLevel(level));
    }

    name: "${{ matrix.root-pom }} on JDK ${{ matrix.java }} on ${{ matrix.os }}"
    strategy:
      matrix:
        os: [ ubuntu-latest ]
        java: [ 8, 11, 17, 21 ]
        root-pom: [ 'pom.xml', 'android/pom.xml' ]
        include:
          - os: windows-latest
            java: 21
            root-pom: pom.xml
    runs-on: ${{ matrix.os }}
    env:

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

<paramdoc xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 ../../../../../../../maven-plugin-parameter-documenter/target/generated-site/xsd/paramdoc-1.0.0.xsd ">
<expressions>
  <expression>