code: public ZipFileBuilder addResource(String zipEntryPath, URL resource) {
  
          this.entryMap.put(zipEntryPath, resource);
          return this;
      }
docs: Adds a resource to the Zip File under the path specified.
  
  @param zipEntryPath
  the path to the entry in the zip file
  @param resource
  the resource providing the content for the path. If an empty directory should be added, this value must
  
  @return this builder