Change default codecs ordering and add Jackson CBOR

This commit updates BaseDefaultCodecs by adding Kotlin
Serialization codecs before their Jackson/GSON counterparts
with their new default behavior that only handles classes with
`@Serializable` at type or generics level.

When there is no alternative codec for the same mime type,
Kotlin Serialization codecs handle all supported cases.

This commit also adds missing Jackson CBOR codecs, and moves both
CBOR and Protobuf codecs to a lower priority, as they are less
commonly used than JSON ones, with the same ordering used on
Spring MVC side.

See gh-35761
Closes gh-35787
This commit is contained in:
Sébastien Deleuze
2025-11-07 16:44:51 +01:00
parent 19dd488dd7
commit d0f57013b0
6 changed files with 207 additions and 66 deletions
@@ -52,10 +52,14 @@ import org.springframework.http.codec.HttpMessageWriter;
import org.springframework.http.codec.ResourceHttpMessageReader;
import org.springframework.http.codec.ResourceHttpMessageWriter;
import org.springframework.http.codec.ServerSentEventHttpMessageReader;
import org.springframework.http.codec.cbor.JacksonCborDecoder;
import org.springframework.http.codec.cbor.JacksonCborEncoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborDecoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborEncoder;
import org.springframework.http.codec.json.JacksonJsonDecoder;
import org.springframework.http.codec.json.JacksonJsonEncoder;
import org.springframework.http.codec.json.KotlinSerializationJsonDecoder;
import org.springframework.http.codec.json.KotlinSerializationJsonEncoder;
import org.springframework.http.codec.multipart.DefaultPartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageWriter;
@@ -91,7 +95,7 @@ class ClientCodecConfigurerTests {
@Test
void defaultReaders() {
List<HttpMessageReader<?>> readers = this.configurer.getReaders();
assertThat(readers).hasSize(18);
assertThat(readers).hasSize(20);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteArrayDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteBufferDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(DataBufferDecoder.class);
@@ -104,11 +108,13 @@ class ClientCodecConfigurerTests {
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(DefaultPartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageReader.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonSmileDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(Jaxb2XmlDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertSseReader(readers);
assertStringDecoder(getNextDecoder(readers), false);
}
@@ -116,7 +122,7 @@ class ClientCodecConfigurerTests {
@Test
void defaultWriters() {
List<HttpMessageWriter<?>> writers = this.configurer.getWriters();
assertThat(writers).hasSize(16);
assertThat(writers).hasSize(18);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteArrayEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteBufferEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(DataBufferEncoder.class);
@@ -127,11 +133,13 @@ class ClientCodecConfigurerTests {
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageWriter.class);
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageWriter.class);
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartHttpMessageWriter.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonSmileEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(Jaxb2XmlEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertStringEncoder(getNextEncoder(writers), false);
}
@@ -161,7 +169,7 @@ class ClientCodecConfigurerTests {
int size = 99;
this.configurer.defaultCodecs().maxInMemorySize(size);
List<HttpMessageReader<?>> readers = this.configurer.getReaders();
assertThat(readers).hasSize(18);
assertThat(readers).hasSize(20);
assertThat(((ByteArrayDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((ByteBufferDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((DataBufferDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
@@ -173,11 +181,13 @@ class ClientCodecConfigurerTests {
assertThat(((DefaultPartHttpMessageReader) nextReader(readers)).getMaxInMemorySize()).isEqualTo(size);
nextReader(readers);
assertThat(((PartEventHttpMessageReader) nextReader(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationProtobufDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationJsonDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonJsonDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonSmileDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((Jaxb2XmlDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationProtobufDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
ServerSentEventHttpMessageReader reader = (ServerSentEventHttpMessageReader) nextReader(readers);
assertThat(reader.getMaxInMemorySize()).isEqualTo(size);
@@ -222,7 +232,7 @@ class ClientCodecConfigurerTests {
writers = findCodec(this.configurer.getWriters(), MultipartHttpMessageWriter.class).getPartWriters();
assertThat(sseDecoder).isNotSameAs(jacksonDecoder);
assertThat(writers).hasSize(16);
assertThat(writers).hasSize(18);
}
@Test // gh-24194
@@ -232,7 +242,7 @@ class ClientCodecConfigurerTests {
List<HttpMessageWriter<?>> writers =
findCodec(clone.getWriters(), MultipartHttpMessageWriter.class).getPartWriters();
assertThat(writers).hasSize(16);
assertThat(writers).hasSize(18);
}
@Test
@@ -246,7 +256,7 @@ class ClientCodecConfigurerTests {
List<HttpMessageWriter<?>> writers =
findCodec(clone.getWriters(), MultipartHttpMessageWriter.class).getPartWriters();
assertThat(writers).hasSize(16);
assertThat(writers).hasSize(18);
}
private Decoder<?> getNextDecoder(List<HttpMessageReader<?>> readers) {
@@ -47,10 +47,14 @@ import org.springframework.http.codec.ResourceHttpMessageReader;
import org.springframework.http.codec.ResourceHttpMessageWriter;
import org.springframework.http.codec.ServerSentEventHttpMessageReader;
import org.springframework.http.codec.ServerSentEventHttpMessageWriter;
import org.springframework.http.codec.cbor.JacksonCborDecoder;
import org.springframework.http.codec.cbor.JacksonCborEncoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborDecoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborEncoder;
import org.springframework.http.codec.json.JacksonJsonDecoder;
import org.springframework.http.codec.json.JacksonJsonEncoder;
import org.springframework.http.codec.json.KotlinSerializationJsonDecoder;
import org.springframework.http.codec.json.KotlinSerializationJsonEncoder;
import org.springframework.http.codec.multipart.DefaultPartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageWriter;
@@ -88,7 +92,7 @@ class CodecConfigurerTests {
@Test
void defaultReaders() {
List<HttpMessageReader<?>> readers = this.configurer.getReaders();
assertThat(readers).hasSize(17);
assertThat(readers).hasSize(19);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteArrayDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteBufferDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(DataBufferDecoder.class);
@@ -100,18 +104,20 @@ class CodecConfigurerTests {
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(DefaultPartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageReader.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonSmileDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(Jaxb2XmlDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertStringDecoder(getNextDecoder(readers), false);
}
@Test
void defaultWriters() {
List<HttpMessageWriter<?>> writers = this.configurer.getWriters();
assertThat(writers).hasSize(16);
assertThat(writers).hasSize(18);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteArrayEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteBufferEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(DataBufferEncoder.class);
@@ -122,11 +128,13 @@ class CodecConfigurerTests {
assertThat(writers.get(index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageWriter.class);
assertThat(writers.get(index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageWriter.class);
assertThat(writers.get(index.getAndIncrement()).getClass()).isEqualTo(PartHttpMessageWriter.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonSmileEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(Jaxb2XmlEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertStringEncoder(getNextEncoder(writers), false);
}
@@ -152,7 +160,7 @@ class CodecConfigurerTests {
List<HttpMessageReader<?>> readers = this.configurer.getReaders();
assertThat(readers).hasSize(21);
assertThat(readers).hasSize(23);
assertThat(getNextDecoder(readers)).isSameAs(customDecoder1);
assertThat(readers.get(this.index.getAndIncrement())).isSameAs(customReader1);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteArrayDecoder.class);
@@ -168,11 +176,13 @@ class CodecConfigurerTests {
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageReader.class);
assertThat(getNextDecoder(readers)).isSameAs(customDecoder2);
assertThat(readers.get(this.index.getAndIncrement())).isSameAs(customReader2);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonSmileDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(Jaxb2XmlDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(StringDecoder.class);
}
@@ -198,7 +208,7 @@ class CodecConfigurerTests {
List<HttpMessageWriter<?>> writers = this.configurer.getWriters();
assertThat(writers).hasSize(20);
assertThat(writers).hasSize(22);
assertThat(getNextEncoder(writers)).isSameAs(customEncoder1);
assertThat(writers.get(this.index.getAndIncrement())).isSameAs(customWriter1);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteArrayEncoder.class);
@@ -213,11 +223,13 @@ class CodecConfigurerTests {
assertThat(writers.get(index.getAndIncrement()).getClass()).isEqualTo(PartHttpMessageWriter.class);
assertThat(getNextEncoder(writers)).isSameAs(customEncoder2);
assertThat(writers.get(this.index.getAndIncrement())).isSameAs(customWriter2);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonSmileEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(Jaxb2XmlEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(CharSequenceEncoder.class);
}
@@ -52,10 +52,14 @@ import org.springframework.http.codec.ResourceHttpMessageReader;
import org.springframework.http.codec.ResourceHttpMessageWriter;
import org.springframework.http.codec.ServerCodecConfigurer;
import org.springframework.http.codec.ServerSentEventHttpMessageWriter;
import org.springframework.http.codec.cbor.JacksonCborDecoder;
import org.springframework.http.codec.cbor.JacksonCborEncoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborDecoder;
import org.springframework.http.codec.cbor.KotlinSerializationCborEncoder;
import org.springframework.http.codec.json.JacksonJsonDecoder;
import org.springframework.http.codec.json.JacksonJsonEncoder;
import org.springframework.http.codec.json.KotlinSerializationJsonDecoder;
import org.springframework.http.codec.json.KotlinSerializationJsonEncoder;
import org.springframework.http.codec.multipart.DefaultPartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageReader;
import org.springframework.http.codec.multipart.MultipartHttpMessageWriter;
@@ -91,7 +95,7 @@ class ServerCodecConfigurerTests {
@Test
void defaultReaders() {
List<HttpMessageReader<?>> readers = this.configurer.getReaders();
assertThat(readers).hasSize(17);
assertThat(readers).hasSize(19);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteArrayDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(ByteBufferDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(DataBufferDecoder.class);
@@ -103,18 +107,20 @@ class ServerCodecConfigurerTests {
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(DefaultPartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageReader.class);
assertThat(readers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageReader.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonJsonDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonSmileDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(JacksonCborDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(Jaxb2XmlDecoder.class);
assertThat(getNextDecoder(readers).getClass()).isEqualTo(KotlinSerializationProtobufDecoder.class);
assertStringDecoder(getNextDecoder(readers), false);
}
@Test
void defaultWriters() {
List<HttpMessageWriter<?>> writers = this.configurer.getWriters();
assertThat(writers).hasSize(17);
assertThat(writers).hasSize(19);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteArrayEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(ByteBufferEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(DataBufferEncoder.class);
@@ -125,11 +131,13 @@ class ServerCodecConfigurerTests {
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(MultipartHttpMessageWriter.class);
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartEventHttpMessageWriter.class);
assertThat(writers.get(this.index.getAndIncrement()).getClass()).isEqualTo(PartHttpMessageWriter.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonJsonEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonSmileEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(JacksonCborEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(Jaxb2XmlEncoder.class);
assertThat(getNextEncoder(writers).getClass()).isEqualTo(KotlinSerializationProtobufEncoder.class);
assertSseWriter(writers);
assertStringEncoder(getNextEncoder(writers), false);
}
@@ -172,11 +180,13 @@ class ServerCodecConfigurerTests {
assertThat((reader).getMaxInMemorySize()).isEqualTo(size);
assertThat(((PartEventHttpMessageReader) nextReader(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationProtobufDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationJsonDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonJsonDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonSmileDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((JacksonCborDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((Jaxb2XmlDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((KotlinSerializationProtobufDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
assertThat(((StringDecoder) getNextDecoder(readers)).getMaxInMemorySize()).isEqualTo(size);
}