When using the war task, wizip does not show content below WEB-INF. However, when you unzip or test the war, the classes, jars, etc. are there. If war has only the webinf subtask then, the resulting war shows only the manifest.mf file. The size of the resulting war is large however.
I think this is a duplicate of bug 17648.
I don't think this is a duplicate of bug 17648. In Ant 1.5.1 it still works.
which would be OK if it is a duplicate as the bug has been introduced in 1.5.2.
*** This bug has been marked as a duplicate of 17648 ***