public static void addRtJar(@NotNull PathsList pathsList) {
    String ideaRtJarPath = getIdeaRtJarPath();
    if (Boolean.getBoolean(IDEA_PREPEND_RT_JAR)) {
      pathsList.addFirst(ideaRtJarPath);
    }
    else {
      pathsList.addTail(ideaRtJarPath);
    }
  }
public static void addRtJar(@NotNull PathsList pathsList)