ClassCastException happening in some cases in production mode

In some cases, which we didn't discover which ones yet, you can have a ClassCastException like this:

java.lang.ClassCastException: class ccom.example.pages.SomePage cannot be cast to class com.example.pages.SomePage (com.example.pages.SomePage is in unnamed module of loader com.example.pages.SomePage @35a6e774; com.example.pages.SomePage is in unnamed module of loader org.apache.tapestry5.internal.plastic.PlasticClassLoader @2743de59) at $InternalPropertyConduit_abf7e72af968f.getRoot(Unknown Source) at $InternalPropertyConduit_abf7e72af968f.get(Unknown Source) at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.java:63)