public String toString() {
    @NonNls final StringBuilder builder = new StringBuilder();
    builder.append("[Module: ").append(getContentRoots()).append(" | ");
    for (DetectedProjectRoot sourceRoot : getSourceRoots()) {
      builder.append(sourceRoot.getDirectory().getName()).append(",");
    }
    builder.append("]");
    return builder.toString();
  }
public String toString()