title: Is this json validate to use a Map in the field detail
body: <p>I must do a concept test to get a json structure and convert in object in java like this Map&lt;String,Double&gt; with Jackson. But the data has these format:</p>
  <pre><code> ```
  &quot;reversedSellId&quot;: &quot;reversed trxId from PayU&quot;, &quot;merchant&quot;:&quot;idMerchant&quot;,
  &quot;detail&quot;: {
      LOAN_CAPITAL: 1234,123,
      LOAN_INTEREST: 1234,123,
      LOAN_ADMON_FEE: 1234,123,
      LOAN_IVA_ADMON_FEE: 1234,123,
      LOAN_OVERDUE_INTEREST: 0,
      LOAN_COLLECTION_MANAGEMENT: 0,
      LOAN_IVA_COLLECTION_MANAGEMENT: 0
  },
    &quot;currency&quot;: &quot;COP&quot;
  }```
  </code></pre>
  <p>But When put this Json in a Json reader formatted is no allow because its structured is incorrect. So I need know really how would be the structure correct.</p>
  <p>Thanks. Is in Java 8.</p>