ProjectBuildingException exception = new ProjectBuildingException(results);
        String message = exception.getMessage();

        assertTrue(message.contains("[unknown project]"), "Message should handle unknown project gracefully");
    }

<project>
  <parent>
    <artifactId>p2</artifactId>
    <groupId>maven</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>p3</artifactId>
  <packaging>pom</packaging>
  <name>p3</name>
  <version>1.0</version>
  <inceptionYear>2000</inceptionYear>

      - name: Setup uv
        uses: astral-sh/setup-uv@v7
        with:
          version: "0.4.15"
          enable-cache: true
          cache-dependency-glob: |
            requirements**.txt
            pyproject.toml
      - name: Install Dependencies
        run: uv pip install -r requirements-github-actions.txt
      # Allow debugging with tmate
      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3

      - name: Setup uv
        uses: astral-sh/setup-uv@v7
        with:
          version: "0.4.15"
          enable-cache: true
          cache-dependency-glob: |
            requirements**.txt
            pyproject.toml
      - name: Install Dependencies
        run: uv pip install -r requirements-github-actions.txt
      # Allow debugging with tmate
      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3

<project>
  <parent>
    <artifactId>p0</artifactId>
    <groupId>maven</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>p1</artifactId>
  <packaging>jar</packaging>
  <name>p1</name>
  <version>1.0</version>
  <scm>
    <url>scm-url</url>
  </scm>

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project.inheritance.t10;

import java.io.File;
import java.util.Map;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.inheritance.AbstractProjectInheritanceTestCase;
import org.junit.jupiter.api.Test;

<project>
  <parent>
    <artifactId>p1</artifactId>
    <groupId>maven.t01</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven.t01</groupId>
  <artifactId>p2</artifactId>
  <packaging>pom</packaging>
  <name>p2</name>
  <version>1.0</version>
  <organization>
    <name>p2-org</name>
  </organization>

<project>
    <modelVersion>4.0.0</modelVersion>
    <name>Gradle_Check Config DSL Script</name>
    <properties>
        <mockk.version>1.14.7</mockk.version>
        <bytebuddy.version>1.18.3</bytebuddy.version>
        <jackson.version>2.20.1</jackson.version>
        <junit.version>6.0.1</junit.version>
        <dslContextParameter.branch>master</dslContextParameter.branch>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>p0</artifactId>
  <packaging>pom</packaging>
  <name>p0</name>
  <version>1.0</version>
  <organization>
    <name>Codehaus</name>
  </organization>

  <dependencyManagement>

    <dependencies>

      <dependency>
        <groupId>maven</groupId>
        <artifactId>p1</artifactId>
        <version>1.0</version>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>p0</artifactId>
  <packaging>pom</packaging>
  <version>1.0</version>

  <scm>
    <connection>scm:svn:http://host/p0</connection>
    <developerConnection>scm:svn:https://host/p0</developerConnection>
    <url>http://host/viewer?path=/p0</url>
  </scm>

  <modules>
    <module>modules/p1</module>
  </modules>