[GitHub] merlimat commented on issue #3362: java.lang.IllegalArgumentException: Illegal base64 character 2d

[GitBox <gi...@apache.org>]

merlimat commented on issue #3362: java.lang.IllegalArgumentException: Illegal base64 character 2d
URL: https://github.com/apache/pulsar/issues/3362#issuecomment-453615684
 
 
   @sautran The code there should be like : 
   
   ```java
    private K getKey(String topic, Message<byte[]> msg) {
           if (!msg.hasKey()) {
               return null;
           }
   
           if (keyDeserializer instanceof StringDeserializer) {
               return (K) msg.getKey();
           } else {
               // Assume base64 encoding
               byte[] data = Base64.getDecoder().decode(msg.getKey());
               return keyDeserializer.deserialize(topic, data);
           }
       }
   ```
   
   Did you set the `StringDeserializer` for the key?

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