After some debugging I found this at org.apache.harmony.pack200.Archive#171 :
if (classes.size() > 0 && files.size() > 0) { segmentUnitList.add(new SegmentUnit(classes, files)); } Seems the Pack200 implementation in harmony requires existing of both classes AND files at the same time. The tests are passing if I modified a little bit here : if (classes.size() > 0 || files.size() > 0) Not sure if this is a problem, cause I'm not familiar with Pack200 and Apache Harmony. Lee On 8 23 2020, at 11:27 , Gary Gregory <garydgreg...@gmail.com> wrote: > Hi All, > > I created a branch called *pack200* which contains the Apache Harmony > Pack200 code. > > If there are 2 failing unit test ATM if anyone wants to help out. > Gary