# Cargo Tracker Open Source App with JEE 9: Unsupported package

**URL:** <https://forum.payara.fish/t/cargo-tracker-open-source-app-with-jee-9-unsupported-package/348>\
**Category:** Technical Discussion\
**Created:** [June 17, 2022, 3:06pm UTC](https://forum.payara.fish/t/cargo-tracker-open-source-app-with-jee-9-unsupported-package/348 "2022-06-17T15:06:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![chanun](https://avatars.discourse-cdn.com/v4/letter/c/3d9bf3/32.png) [@chanun](https://forum.payara.fish/u/chanun)\
**Post date:** [June 17, 2022, 3:06pm UTC](https://forum.payara.fish/t/cargo-tracker-open-source-app-with-jee-9-unsupported-package/348/1 "2022-06-17T15:06:14Z")

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Hi all, I’ve been tinkering with the [Cargo Tracker open source application](https://github.com/eclipse-ee4j/cargotracker) and recently decided to try and migrate it from Payara 5 with Jakarta EE 8 to Payara 6 Alpha 2 with Jakarta EE 9. I removed all references to the unsupported javax.\* packages, but during testing I noticed a ClassNotFound exception where one of the tests is attempting to use the javax.servlet.HttpServlet package despite no instances of that package being imported in the project. This results in a failure to connect to the server, since I believe the correct package is “jakarta.servlet.HttpServlet” for EE 9.

I wasn’t able to see where the test itself was using the unsupported package since it also didn’t appear to be imported or used in the test class either. How might I go about fixing this issue? I’ll be able to provide files and logs as needed.