Minor Description
Log4JMarker.hasParents() will return false when the marker has parents, and true when it has none.
The javadoc in the Marker interface indicates it should function the other way around:
"Indicates whether this Marker has references to any other Markers. Return true if the Marker has parent Markers"
The code for the implementation (that I could find) demonstrates that it would function in the opposite way as it is described in that javadoc:
@Override public boolean hasParents() { return this.parents == null; }