horizonzy opened a new issue, #23925: URL: https://github.com/apache/pulsar/issues/23925
### Search before asking - [x] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Read release policy - [x] I understand that unsupported versions don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker. ### Version master ### Minimal reproduce step You can run this code to reproduce it. ``` import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import java.util.Map; import org.apache.pulsar.common.api.proto.KeyValue; import org.apache.pulsar.common.api.proto.MessageMetadata; import org.apache.pulsar.common.api.raw.RawMessage; import org.apache.pulsar.common.api.raw.RawMessageImpl; import org.apache.pulsar.common.api.raw.ReferenceCountedMessageMetadata; import org.apache.pulsar.shade.io.netty.buffer.ByteBufAllocator; public class Test { public static void main(String[] args) { byte[] messageContent = "Hello, Pulsar!".getBytes(); ByteBuf payload = Unpooled.wrappedBuffer(messageContent); org.apache.pulsar.shade.io.netty.buffer.ByteBuf buffer = ByteBufAllocator.DEFAULT.buffer(); ReferenceCountedMessageMetadata referenceCountedMessageMetadata = ReferenceCountedMessageMetadata.get(buffer); MessageMetadata metadata1 = referenceCountedMessageMetadata.getMetadata(); KeyValue keyValue = metadata1.addProperty(); keyValue.setKey("aa"); keyValue.setValue("bb"); KeyValue keyValue1 = metadata1.addProperty(); keyValue1.setKey("aa"); keyValue1.setValue("cc"); RawMessage rawMessage = RawMessageImpl.get(referenceCountedMessageMetadata, null, null, 0, 0, 0); Map<String, String> properties = rawMessage.getProperties(); } } ``` ### What did you expect to see? Do not throw the exception. ### What did you see instead? It will throw the following exception. ``` Exception in thread "main" java.lang.IllegalStateException: Duplicate key aa (attempted merging values bb and cc) at java.base/java.util.stream.Collectors.duplicateKeyException(Collectors.java:135) at java.base/java.util.stream.Collectors.lambda$uniqKeysMapAccumulator$1(Collectors.java:182) at java.base/java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) at java.base/java.util.ArrayList$SubList$2.forEachRemaining(ArrayList.java:1481) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) at org.apache.pulsar.common.api.raw.RawMessageImpl.getProperties(RawMessageImpl.java:102) at com.zy.Test.main(Test.java:38) ``` ### Anything else? _No response_ ### Are you willing to submit a PR? - [x] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
