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In org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serializer and org.apache.kafka.common.serialization.Deserializer, we will add empty implementations to close() and configure(). Also, we will add the annotation "FunctionalInterface" to Deserializer and Serializer.

Code Block
titleSerde.java
default void configure(Map<String, ?> configs, boolean isKey) {
  // intentionally left blank
}
default void close() {
  // intentionally left blank
}

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Code Block
titleSerializer
@FunctionalInterface
public interface Serializer<T> extends Closeable {
 default void configure(Map<String, ?> configs, boolean isKey) {
    // intentionally left blank
  }
  default void close() {
    // intentionally left blank
  }
}

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Code Block
titleDeserializer
@FunctionalInterface
public interface Deserializer<T> extends Closeable {
  default void configure(Map<String, ?> configs, boolean isKey) {
    // intentionally left blank
  }
  default void close() {
    // intentionally left blank
  }
}

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