private static @Nullable Map<String, String> computeArchivedCompiledClassesMapping() {
    final String filePath = System.getProperty("intellij.test.jars.mapping.file");
    if (StringUtilRt.isEmptyOrSpaces(filePath)) {
      return null;
    }
    final List<String> lines;
    try {
      lines = Files.readAllLines(Paths.get(filePath));
    }
    catch (Exception e) {
      log("Failed to load jars mappings from " + filePath);
      return null;
    }
    final Map<String, String> mapping = new HashMap<>(lines.size());
    for (String line : lines) {
      String[] split = line.split("=", 2);
      if (split.length < 2) {
        log("Ignored jars mapping line: " + line);
        continue;
      }
      mapping.put(split[0], split[1]);
    }
    return Collections.unmodifiableMap(mapping);
  }
private static @Nullable Map<String, String> computeArchivedCompiledClassesMapping()