JWt

When setHeaderAlignment is used the vertical alignment is not updated. This is due to a translation error from Wt to JWt:

if (alignment.test(AlignVerticalMask))

Is translated to:

if (alignment.contains(AlignmentFlag.AlignVerticalMask))

The latter is always false, since EnumSet<AlignmentFlag> will only ever contain AlignmentFlags, not EnumSet<AlignmentFlag>s.

We get the correct translation when the C++ code is changed to:

if (!(alignment & AlignVerticalMask).empty())

The original code incidentally works in C++, since the type of AlignVerticalMask (WFlags<AlignmentFlag>) gets implicitly converted to AlignmentFlag. We may want to consider making this explicit, to avoid more errors like this.