Wrong CtExecutableReference if source classpath modified

Hi!
I'm having an issue that happens when modifying the source classpath of the spoon Launcher. If I add some jars, it seems the spoon model gets built incorrectly. In particular the `CtExecutableReference` that one gets from an invocation clearly points to a method with a different signature (but same name).
Here is the code of the methods:
```
public Optional> queryState(Class stateClass, Class entityClass, UUID linearId) {
return this.queryState(stateClass, entityClass, "linearId", linearId);
}
public Optional> queryState(Class stateClass, Class entityClass, String attributeName, Object value) {
//Other non-relevant code
}
```
And here are the screenshots of intelliJ debugger:
When running with more classes on classpath (wrong executable reference):
When running with less classes on classpath (correct executable reference):

I know it is really hard to debug something like this; it's just hard on my side to reproduce the bug in an easy way.
Do you have any idea why this might happen?
Thanks!
Luca