private Writer findApplicableWriter(Object value) {
    for (val writer : writers) {
      if (writer.isApplicable(value)) {
        return writer;
      }
    }
    return defaultPerocessor;
  }
Returns the <b>unmodifiable</b> collection of all writers.

@return writers collection.
form/src/main/java/feign/form/MultipartFormContentProcessor.java