docs: public static String getJavaClassFromSchemaInfo(String schemaInfo) {
          final String ONLY_JAVA_CLIENTS_SUPPORTED = "Only Java clients are supported currently, so the format of the schema-info should be: <schema-info>java=foo.Bar</schema-info> where foo.Bar is the fully qualified name of the message.";
  
          if(StringUtils.isEmpty(schemaInfo))
              throw new IllegalArgumentException("This serializer requires a non-empty schema-info.");
  
          String[] languagePairs = StringUtils.split(schemaInfo, ',');
          if(languagePairs.length > 1)
              throw new IllegalArgumentException(ONLY_JAVA_CLIENTS_SUPPORTED);
  
          String[] javaPair = StringUtils.split(languagePairs[0], '=');
          if(javaPair.length != 2 || !javaPair[0].trim().equals("java"))
              throw new IllegalArgumentException(ONLY_JAVA_CLIENTS_SUPPORTED);
  
          return javaPair[1].trim();
      }