code: public BatchGetProjectsResult withProjectsNotFound(String... projectsNotFound) {
          if (this.projectsNotFound == null) {
              setProjectsNotFound(new java.util.ArrayList<String>(projectsNotFound.length));
          }
          for (String ele : projectsNotFound) {
              this.projectsNotFound.add(ele);
          }
          return this;
      }
docs: <p>
  The names of build projects for which information could not be found.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setProjectsNotFound(java.util.Collection)} or {@link #withProjectsNotFound(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param projectsNotFound
  The names of build projects for which information could not be found.
  @return Returns a reference to this object so that method calls can be chained together.