jTET can not support boolean equation comparison

When I try to compare two booleans like x == y, error occurred. The error is in function Collection getInputTypeForOutput(TypeMarker outputType) line 56, it should include Boolean in the list.

case Equals:
case NotEquals:
    return Arrays.asList(new TypeMarker[]{RealType.Type, FixedPointType.TypeMarker, EnumerationType.TypeMarker});