* @since 3.0
 */
public class EnvironmentUtils {

    private static Properties envVars;

    /**
     * Adds the environment variables in the form of properties whose keys are prefixed with {@code env.}, e.g. {@code
     * env.PATH}. Unlike native environment variables, properties are always case-sensitive. For the sake of
     * determinism, the environment variable names will be normalized to upper case on platforms with case-insensitive

        shell: bash
        run: |
          set +e
          if [ -f ${{ env.TAR_BALL }} ]; then
            temp_dir=$(mktemp -d)
            tar -xzf ${{ env.TAR_BALL }} -C "$temp_dir" --strip 1
            maven_bin_dir=$temp_dir/bin
            if [ -d $maven_bin_dir ]; then
              echo "tar.gz file \"${{ env.TAR_BALL }}\" successfully extracted in temporarily directory \"$temp_dir.\""

          fi
          echo "REPO_BRANCH=$target_branch" >> $GITHUB_ENV
          echo "REPO_USER=$target_user" >> $GITHUB_ENV

      - name: Checkout maven-integration-testing
        uses: actions/checkout@v4
        with:
          repository: ${{ env.REPO_USER }}/maven-integration-testing
          path: maven-integration-testing/
          ref: ${{ env.REPO_BRANCH }}
          persist-credentials: false

                    dir(isUnix() ? 'test' : "c:\\mvn-it-${EXECUTOR_NUMBER}.tmp") {
                        def WORK_DIR=pwd()
                        def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                        try {
                          echo "Checkout ITs from branch: ${ITS_BRANCH}"
                          checkout([$class: 'GitSCM',

    }

    @Provides
    static Session newSession(RepositorySystem system, Lookup lookup) {
        Map<String, String> properties = new HashMap<>();
        // Env variables prefixed with "env."
        System.getenv().forEach((k, v) -> properties.put("env." + k, v));
        // Java System properties
        System.getProperties().forEach((k, v) -> properties.put(k.toString(), v.toString()));

        valueSources.add(new AbstractValueSource(false) {
            @Override
            public Object getValue(String expression) {
                return request.getSystemProperties().get("env." + expression);
            }
        });

        valueSources.add(prefixlessObjectBasedValueSource);

        return valueSources;
    }

        tm1.addProvide("version", "1.5");
        tm1.addProvide("vendor", "sun");
        Xpp3Dom configuration1 = new Xpp3Dom("configuration");
        Xpp3Dom jdkHome1 = new Xpp3Dom("jdkHome");
        jdkHome1.setValue("${env.JAVA_HOME}");
        configuration1.addChild(jdkHome1);
        tm1.setConfiguration(configuration1);

        ToolchainModel tm2 = new ToolchainModel();
        tm1.setType("jdk");

                                }
                            }
                            dir ('its') {
                                def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                                try {
                                  echo "Checkout ITs from branch: ${ITS_BRANCH}"
                                  checkout([$class: 'GitSCM',

        valueSources.add(new AbstractValueSource(false) {

            public Object getValue(String expression) {
                return config.getExecutionProperties().getProperty("env." + expression);
            }
        });
        valueSources.add(modelValueSource2);

        return valueSources;
    }

    protected List<InterpolationPostProcessor> createPostProcessors(

     * Returns immutable system properties to use for interpolation. The system properties are collected from the
     * runtime environment such as {@link System#getProperties()} and environment variables
     * (prefixed with {@code env.}).
     *
     * @return the system properties, never {@code null}
     */
    @Nonnull
    Map<String, String> getSystemProperties();

    /**