Message “package … does not exist” despite of a corresponding Java source file

[Markus-Elfring]

Apache NetBeans version

Apache NetBeans 14

What happened

The script “Apache-NetBeans-14-bin-linux-x64.sh” was successfully executed also on my development system.
I opened a test project a moment later.

I wondered then about the error message “package … does not exist”.

How to reproduce

Please take another look at import specifications (also in known Java example source files).

Did this work correctly in an earlier version?

No / Don't know

Operating System

Linux 5.19.2-1.2 x86_64 - openSUSE Tumbleweed

JDK

OpenJDK 18.0.2.0 x86_64 - openSUSE Tumbleweed

Apache NetBeans packaging

Apache NetBeans provided installer

Anything else

The software “Eclipse IDE for Java Developers 2022-06 (4.24.0)” found the mentioned import statement usable.

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Another example for a previous clarification attempt:
2016-08-11: "Package does not exist" but it does

Are you willing to submit a pull request?

No

Code of Conduct

Yes

[neilcsmith-net]

That's not a valid project. The packages should be under src/main/java.

[Chris2011]

That's not a valid project. The packages should be under src/main/java.

Does this really matters and does this really make a difference?

[Markus-Elfring]

The packages should be under src/main/java.

💭 I suggest to reconsider such information a bit more also according to a required statement like “package picocli;” (for my test example).
Do development environments present differences in the desired storage locations?

[neilcsmith-net]

Does this really matters and does this really make a difference?

Yes. @Chris2011 if it's not a valid project how do you expect NetBeans to work out where the root of Java packages is?

Do development environments present differences in the desired storage locations?

Well, build systems do, and unless the build system (eg. Maven) is configured correctly, then it's neither going to build or allow NetBeans to find the required information. I hadn't noticed initially, but it looks like the pom.xml file is incorrectly under src too. This might accidentally work in Eclipse because of the .classpath file, but it's not going to work elsewhere.

For help with Maven inside (or outside) NetBeans, I suggest you ask on the users@ mailing list or in the GitHub discussions.

[Markus-Elfring]

I hadn't noticed initially, but it looks like the pom.xml file is incorrectly under src too.

The file “pom.xml” is stored in the root directory for my test project example.
💭 Do you expect a clearer graphical representation by the NetBeans IDE accordingly?

[Markus-Elfring]

… where the root of Java packages is?

Does the shown screenshot excerpt indicate relevant information? 🤔

[neilcsmith-net]

Moving this into discussions as suggested.