Checking the selection of source file storage locations

[elfring]

I am checking the capabilities of the following software.

Eclipse IDE for Java Developers 2022-06 (4.24.0)
Maven Integration for Eclipse Core 1.20.1.20220227-1319

A)

1. An ordinary Java project can be created by the provided project template.
2. The main source file would be stored then in a package subdirectory as usual.
3. The file “pom.xml” can manually be added to the project root directory.
4. The source files of another popular software component can be stored in the directory “<project_root>/src/picocli”.
5. The declaration “import picocli.CommandLine;” can successfully be added to the main source file together with a few related ones.
6. This intermediate development situation looks promising.

B)

1. Another project can be created by the means of the Maven project wizard.
2. The main source file would be stored then in another package subdirectory as usual.
3. The source code for a new class can be stored in the file “motd1/src/motd1/MessageGenerator.java”.
4. The declaration “import motd1.MessageGenerator;” can be added to the main source file.
5. The error message “The import motd1 cannot be resolved” is presented.
6. 🤔 Should this message be better avoidable?

By the way:
The corresponding two files “.project” differ in the number of the used XML elements “buildCommand” and “nature”.