code: public FileEventOptions includes(final String expression) {
      requireNonNull(expression, "Glob expression required.");
      this.matchers.add(new GlobPathMatcher(expression));
      return this;
    }
docs: Add a path filter using <code>glob</code> expression, like <code>**&#47;*.java</code>,
  etc...
  
  @param expression Glob expression.
  @return This options.