Fix JavaDocs of KStream.transformValues
Reviewers: Bill Bejeck
@@ -2782,8 +2782,6 @@ public interface KStream<K, V> {
* To trigger periodic actions via {@link org.apache.kafka.streams.processor.Punctuator#punctuate(long) punctuate()},
* a schedule must be registered.
* The {@link ValueTransformer} must return the new value in {@link ValueTransformer#transform(Object) transform()}.
- * If the return value of {@link ValueTransformer#transform(Object) ValueTransformer#transform()} is {@code null},
- * no records are emitted.
* In contrast to {@link #transform(TransformerSupplier, String...) transform()}, no additional {@link KeyValue}
* pairs can be emitted via {@link ProcessorContext#forward(Object, Object) ProcessorContext.forward()}.
* A {@link org.apache.kafka.streams.errors.StreamsException} is thrown if the {@link ValueTransformer} tries to
@@ -2860,8 +2858,6 @@ public interface KStream<K, V> {
* To trigger periodic actions via {@link org.apache.kafka.streams.processor.Punctuator#punctuate(long) punctuate()},
* a schedule must be registered.
* The {@link ValueTransformer} must return the new value in {@link ValueTransformer#transform(Object) transform()}.
- * If the return value of {@link ValueTransformer#transform(Object) ValueTransformer#transform()} is {@code null}, no
- * records are emitted.
* In contrast to {@link #transform(TransformerSupplier, String...) transform()}, no additional {@link KeyValue}
* pairs can be emitted via {@link ProcessorContext#forward(Object, Object) ProcessorContext.forward()}.
* A {@link org.apache.kafka.streams.errors.StreamsException} is thrown if the {@link ValueTransformer} tries to
@@ -2942,8 +2938,6 @@ public interface KStream<K, V> {
* a schedule must be registered.
* The {@link ValueTransformerWithKey} must return the new value in
* {@link ValueTransformerWithKey#transform(Object, Object) transform()}.
- * If the return value of {@link ValueTransformerWithKey#transform(Object, Object) ValueTransformerWithKey#transform()}
- * is {@code null}, no records are emitted.
* In contrast to {@link #transform(TransformerSupplier, String...) transform()} and
* {@link #flatTransform(TransformerSupplier, String...) flatTransform()}, no additional {@link KeyValue} pairs
* can be emitted via {@link ProcessorContext#forward(Object, Object) ProcessorContext.forward()}.
@@ -3024,8 +3018,6 @@ public interface KStream<K, V> {
* a schedule must be registered.
* The {@link ValueTransformerWithKey} must return the new value in
* {@link ValueTransformerWithKey#transform(Object, Object) transform()}.
- * If the return value of {@link ValueTransformerWithKey#transform(Object, Object) ValueTransformerWithKey#transform()}
- * is {@code null}, no records are emitted.
* In contrast to {@link #transform(TransformerSupplier, String...) transform()} and
* {@link #flatTransform(TransformerSupplier, String...) flatTransform()}, no additional {@link KeyValue} pairs
* can be emitted via {@link ProcessorContext#forward(Object, Object) ProcessorContext.forward()}.
