JavaTest does not fully support Jira IDs. For example:

                Iterator<ExcludeList.Entry> iterTmpExcludeList =
                        new ExcludeList(excludeFile).getIterator(false);
                excludeList = new ExcludeList();
                while (iterTmpExcludeList.hasNext()) {
                    ExcludeList.Entry entry = iterTmpExcludeList.next();
                    entry.getBugIds(); // returns array with -1 element

excludeFile is used from recent jck workspace and uses Jira IDs ("JCK-number").

It is also impossible to create object of type ExcludeList.Entry, that would store and later return bud is as Jira ID.

The only constructor is available is:
public Entry(String u, String tc, int[] b, String[] p, String s)

This functionality is a stopper for JTXCheck utility.