@Nullable
  private static String handleSpacesInContainingDir(@NotNull String agentPath,
                                                    @NotNull String agentName,
                                                    @NotNull String copyDirName,
                                                    @Nullable String agentPathPropertyKey,
                                                    @Nullable FileFilter fileFilter) {
    String agentContainingDir;
    String userDefined = agentPathPropertyKey == null ? null : System.getProperty(agentPathPropertyKey);
    if (userDefined != null && new File(userDefined).exists()) {
      agentContainingDir = userDefined;
    } else {
      agentContainingDir = new File(agentPath).getParent();
    }
    if (agentContainingDir.contains(" ")) {
      String res = tryCopy(agentContainingDir, agentName, new File(PathManager.getSystemPath(), copyDirName), fileFilter);
      if (res == null) {
        try {
          res = tryCopy(agentContainingDir, agentName, FileUtil.createTempDirectory(copyDirName, "jars"), fileFilter);
          if (res == null) {
            String message = "agent not used since the agent path contains spaces: " + agentContainingDir;
            if (agentPathPropertyKey != null) {
              message += "\nOne can move the agent libraries to a directory with no spaces in path and specify its path in idea.properties as " +
              agentPathPropertyKey + "=<path>";
            }
            LOG.info(message);
          }
        }
        catch (IOException e) {
          LOG.info(e);
        }
      }
      return res;
    }
    return agentContainingDir;
  }
@Nullable
  private static String handleSpacesInContainingDir(@NotNull String agentPath,
                                                    @NotNull String agentName,
                                                    @NotNull String copyDirName,
                                                    @Nullable String agentPathPropertyKey,
                                                    @Nullable FileFilter fileFilter)