Infinite loop resolving workspace

[stuartwdouglas]

If you take the reproducer from #5879 and update the quarkus version to the latest version you will get an infinite loop when running mvn quarkus:dev.

This project has an odd structure, where the parent is not the top level project.

The issue is in this code here:

quarkus/independent-projects/bootstrap/maven-resolver/src/main/java/io/quarkus/bootstrap/resolver/maven/workspace/LocalProject.java

Line 146 in 35272d7

final Path parentDir = pomXml.getParent().getParent();

Reading the model will correctly follow the parent references to get to the correct parent, but then it looks in the top level directory again, and will restart the cycle. I am not really sure what the correct fix is here, because I don't know why that logic was added.

Also this code seems inefficient, if we have parsed the model shouldn't we be saving it somewhere so we don't need to re-parse it when loading the workspace?