title: Dozer String to enum mapping
body: <p>I have such enum:</p>
  
  <pre><code>public enum PartnershipIndicator {
      VENDOR("VENDOR"), COPARTNER("COPARTNER"), BUYER("BUYER");
  
      String code;
  
      private PartnershipIndicator(String code) {
          this.code = code;
      }
  
      public String getCode() {
          return code;
      }
  
      public static PartnershipIndicator valueOfCode(String code) {
          for (PartnershipIndicator status : values()) {
              if (status.getCode().equals(code)) {
                  return status;
              }
          }
          throw new IllegalArgumentException(
              "Partnership status cannot be resolved for code " + code);
      }
  
      @Override
      public String toString() {
          return code;
      }
  }
  </code></pre>
  
  <p>I need to convert it to String and vice versa. <em>Now, it is done by custom converter.</em> But i want to do it via dozer mappings (if it is possible). If i do not write any mappings to the dozer confing, i get</p>
  
  <pre><code>org.dozer.MappingException: java.lang.NoSuchMethodException: by.dev.madhead.demo.test_java.model.PartnershipIndicator.&lt;init&gt;()
  </code></pre>
  
  <p>exception. I cannot add default public constructor to enum, as it is not possible. So, i wrote a trick with internal code and valueOfCode() / toString(). It does not work. Then, i've mapped it in dozer config:</p>
  
  <pre><code>&lt;mapping&gt;
      &lt;class-a&gt;java.lang.String&lt;/class-a&gt;
      &lt;class-b create-method="valueOfCode"&gt;by.dev.madhead.demo.test_java.model.PartnershipIndicator&lt;/class-b&gt;
  &lt;/mapping&gt;
  </code></pre>
  
  <p>It does not work. I tried valueOfCode(), one-way mappings. Nothing works. Enum to String conversion does not work too, i get empty Strings.
  Any ideas?</p>