the class loader in pulsar function recognizes jar file as an nar file?

Describe the bug I met an exception when I run a pulsar function, it seems that the class loader in pulsar recognizes it as a nar file, but I don’t use any nar.

To Reproduce Steps to reproduce the behavior:

1. run a pulsar function ./pulsar-admin functions localrun
   –jar /path/to/xxx.jar
   –tenant xxxtenant --namespace xxxnamespace
   –classname com.xx.functions.xxxxtransformer.XxxxTransfer2xxx
   –inputs persistent://xxxtenant/xxxnamespace/xxxtopic1,persistent://xxxtenant/xxxnamespace/xxxtopic2
   –output persistent://xxxtenant/xxxnamespace/xxxtopic-target
   –logTopic persistent://xxxtenant/xxxnamespace/xxx-topic-logs
   –name xxx-transformer I get the error.

2. when I delete a dependency about a module which includes a dependency <dependency> <groupId>com.facebook.presto</groupId> <groupId>io.prestosql</groupId> <artifactId>presto-jdbc</artifactId> <version>${presto-jdbc.version}</version> </dependency> it works

Expected behavior don’t show the issue.

Screenshots

Desktop (please complete the following information):

• OS: macOS Big Sur, pulsar 2.7.0

Additional context @david-streamlio : There appears to be an issue with your NAR file. Specifically with the pulsar-common jar file. Perhaps you can try changing the scope of that dependency to provided and retry? follow david’s advice, remove denpendency , it works, but I consider that maybe the class loader recognizes wrongly the presto as a nar file?

cc @codelipenghui

[pointearth]

yea, I am in a rush this week, let me write another demo to show you in next days. @lhotari

[tisonkun]

Closed as stale. Please create a new issue if it’s still relevant to the maintained versions.