commons-file/src/main/java/info/monitorenter/util/FileUtil.java
public static FileUtil getInstance() {
    if (FileUtil.instance == null) {
      FileUtil.instance = new FileUtil();
    }
    return FileUtil.instance;
  }
public static FileUtil getInstance() {
    if (FileUtil.instance == null) {
      FileUtil.instance = new FileUtil();
    }
    return FileUtil.instance;
  }
Returns the singleton instance of this class.
<p>

@return the singleton instance of this class.