java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.Comparator java.util.TreeMap.comparator accessible: module java.base does not "opens java.util" to unnamed module @75329a49
[pitest] at ...
[pitest] at org.pitest.reloc.xstream.core.util.Fields.locate(Fields.java:39)
[pitest] at org.pitest.reloc.xstream.converters.collections.TreeMapConverter.<clinit>(TreeMapConverter.java:50)