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
     * variable lookup.
     *

    List<String> getInactiveProfileIds();

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The execution properties, never {@code null}.
     */
    Map<String, String> getSystemProperties();

    /**

        return systemProperties;
    }

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @param systemProperties The system properties, may be {@code null}.
     * @return This context, never {@code null}.
     */
    @SuppressWarnings("unchecked")

    /** The key of the configuration. e.g. true */
    String DEVELOPMENT_HERE = "development.here";

    /** The key of the configuration. e.g. Local Development */
    String ENVIRONMENT_TITLE = "environment.title";

    /** The key of the configuration. e.g. false */
    String FRAMEWORK_DEBUG = "framework.debug";

    /** The key of the configuration. e.g. 0 */

                pb.directory(baseDir);
                pb.redirectErrorStream(true);
                final Map<String, String> environment = pb.environment();
                environment.put("SESSION_ID", sessionId);
                environment.put("OPENSEARCH_URL", SystemUtil.getSearchEngineHttpAddress());
            });

            final InputStreamThread it = jobProcess.getInputStreamThread();

            problems.add(new DefaultBuilderProblem(
                    null,
                    -1,
                    -1,
                    e,
                    "Failed to use environment variables for interpolation: " + e.getMessage(),
                    BuilderProblem.Severity.WARNING));
        }

        return new MavenToolchainsTransformer(value -> {
                    try {

    if (System.getProperty("com.google.appengine.runtime.environment") == null) {
      return false;
    }
    try {
      Class.forName("com.google.appengine.api.utils.SystemProperty");
    } catch (ClassNotFoundException e) {
      return false;
    }
    try {
      // If the current environment is null, we're not inside AppEngine.

 */
public interface JavaToolchain extends Toolchain {
    //    /**
    //     * Returns a list of {@link java.io.File}s which represents the bootstrap libraries for the
    //     * runtime environment. The Bootstrap libraries include libraries in JRE's
    //     * extension directory, if there are any.
    //     *
    //     * @return List
    //     */
    //    List getBootstrapLibraries();
    //

    // Properties

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @param systemProperties The system properties, may be {@code null}.
     * @return This request, never {@code null}.
     */

    getChecked(immediateFuture("foo"), shadowClass);
    return new WeakReference<>(shadowLoader);
  }

  /*
   * TODO(cpovirk): It would be great to run all these tests (including class unloading) in an
   * environment that forces Futures.getChecked to its fallback WeakSetValidator. One awful way of
   * doing so would be to derive a separate test library by using remove_from_jar to strip out
   * ClassValueValidator.
   *