rocketraman commented on issue #3762: Shading Avro in pulsar-client URL: https://github.com/apache/pulsar/issues/3762#issuecomment-537797198 I'd like to at least have the option to use the Java Pulsar client with an unshaded Avro. We use Avro extensively with Kafka, and while we migrate to Pulsar, its imperative we have compatibility at the Avro message level, which means using the same version of Avro. Here is an issue we are running into because our messages use Avro 1.9.1 which supports the java.time APIs: ``` java.lang.RuntimeException: java.lang.NoSuchMethodException: java.time.Instant.<init>() at org.apache.pulsar.shade.org.apache.avro.specific.SpecificData.newInstance(SpecificData.java:353) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.specific.SpecificData.newRecord(SpecificData.java:369) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.reflect.ReflectData.newRecord(ReflectData.java:901) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:212) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:175) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:179) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.reflect.ReflectDatumReader.readField(ReflectDatumReader.java:302) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:222) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:175) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:179) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.reflect.ReflectDatumReader.readField(ReflectDatumReader.java:302) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:222) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:175) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.shade.org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:145) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.client.impl.schema.reader.AvroReader.read(AvroReader.java:52) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.client.impl.schema.StructSchema.decode(StructSchema.java:94) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.client.impl.MessageImpl.getValue(MessageImpl.java:270) ~[pulsar-client-2.4.1.jar:2.4.1] at org.apache.pulsar.client.impl.TopicMessageImpl.getValue(TopicMessageImpl.java:143) ~[pulsar-client-2.4.1.jar:2.4.1] [...] ```
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