BajrangDubeyPersistent opened a new issue, #17987: URL: https://github.com/apache/pulsar/issues/17987
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Version Apache Pulsar 2.8.2 [PythonTLSConsumer.txt](https://github.com/apache/pulsar/files/9746290/PythonTLSConsumer.txt) [PythonTLSProducer.txt](https://github.com/apache/pulsar/files/9746292/PythonTLSProducer.txt) [JavaTLSConsumer.txt](https://github.com/apache/pulsar/files/9746293/JavaTLSConsumer.txt) [JavaTLSProducer.txt](https://github.com/apache/pulsar/files/9746294/JavaTLSProducer.txt) [pom.txt](https://github.com/apache/pulsar/files/9746592/pom.txt) ### Minimal reproduce step Followed steps mentioned in : https://pulsar.apache.org/docs/security-tls-transport/ Few Changes not mentioned in documentation: 1. proxy roles: proxy 2. remove tls ciphers 3. certificates to be created wrt role token 4. change port while creating broker For the same implementation, I am able to run code in python but not in java ### What did you expect to see? I expected to see Java code running as it was using same configurations as used in Python. ### What did you see instead? Error received: org.apache.pulsar.client.api.PulsarClientException: java.util.concurrent.ExecutionException: org.apache.pulsar.client.api.PulsarClientException: Connection already closed at org.apache.pulsar.client.api.PulsarClientException.unwrap(PulsarClientException.java:1027) at org.apache.pulsar.client.impl.ProducerBuilderImpl.create(ProducerBuilderImpl.java:91) at Producer.main(Producer.java:43) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:297) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.util.concurrent.ExecutionException: org.apache.pulsar.client.api.PulsarClientException: Connection already closed at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999) at org.apache.pulsar.client.impl.ProducerBuilderImpl.create(ProducerBuilderImpl.java:89) ... 7 more Caused by: org.apache.pulsar.client.api.PulsarClientException: Connection already closed at org.apache.pulsar.client.impl.ClientCnx.channelInactive(ClientCnx.java:252) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:241) at org.apache.pulsar.shade.io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:389) at org.apache.pulsar.shade.io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:354) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:241) at org.apache.pulsar.shade.io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:389) at org.apache.pulsar.shade.io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:354) at org.apache.pulsar.shade.io.netty.handler.ssl.SslHandler.channelInactive(SslHandler.java:1073) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:241) at org.apache.pulsar.shade.io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1405) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) at org.apache.pulsar.shade.io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:248) at org.apache.pulsar.shade.io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:901) at org.apache.pulsar.shade.io.netty.channel.AbstractChannel$AbstractUnsafe$8.run(AbstractChannel.java:831) at org.apache.pulsar.shade.io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) at org.apache.pulsar.shade.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) at org.apache.pulsar.shade.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:384) at org.apache.pulsar.shade.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) at org.apache.pulsar.shade.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at org.apache.pulsar.shade.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ... 1 more ### Anything else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. 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