*/
object BuildEnvironment {

    /**
     * A selection of environment variables injected into the environment by the `codeql-env.sh` script.
     */
    private
    val CODEQL_ENVIRONMENT_VARIABLES = arrayOf(
        "CODEQL_JAVA_HOME",
        "CODEQL_EXTRACTOR_JAVA_SCRATCH_DIR",
        "CODEQL_ACTION_RUN_MODE",
        "CODEQL_ACTION_VERSION",
        "CODEQL_DIST",
        "CODEQL_PLATFORM",
        "CODEQL_RUNNER"

  @GwtIncompatible // SerializableTester
  public void testKeySetIsSerializable_jdkBackedImmutableMap() {
    class NonSerializableClass {}

    Entry<String, NonSerializableClass>[] entries =
        arrayOf(ImmutableMap.entryOf("one", new NonSerializableClass()));

    ImmutableMap<String, NonSerializableClass> map =
        JdkBackedImmutableMap.create(1, entries, /* throwIfDuplicateKeys= */ true);

      return emptyListIterator();
    }
    return new ArrayItr<>(array, position);
  }

  private static final class ArrayItr<T extends @Nullable Object>
      extends AbstractIndexedListIterator<T> {
    static final UnmodifiableListIterator<Object> EMPTY = new ArrayItr<>(new Object[0], 0);

    private final T[] array;

    // Type inference is doomed here: int.class is the same as Integer.class, so this is comparing
    // TypeToken<int[]> and TypeToken<Integer[]>.
    assertEquals(new TypeToken<int[]>() {}, arrayOf(int.class));
    assertEquals(int[].class, arrayOf(int.class).getRawType());
  }

  @SuppressWarnings("unused") // used by reflection
  private static class Holder<T> {
    List<T>[] matrix;

    void setList(List<T> list) {}

    // Type inference is doomed here: int.class is the same as Integer.class, so this is comparing
    // TypeToken<int[]> and TypeToken<Integer[]>.
    assertEquals(new TypeToken<int[]>() {}, arrayOf(int.class));
    assertEquals(int[].class, arrayOf(int.class).getRawType());
  }

  @SuppressWarnings("unused") // used by reflection
  private static class Holder<T> {
    List<T>[] matrix;

    void setList(List<T> list) {}