public void filter(Filter filter) throws NoTestsRemainException {
synchronized (fChildrenLock) {
List<T> filteredChildren = new ArrayList<T>(getFilteredChildren());
for (Iterator<T> iter = filteredChildren.iterator(); iter.hasNext(); ) {
T each = iter.next();
if (shouldRun(filter, each)) {
try {
filter.apply(each);
} catch (NoTestsRemainException e) {
iter.remove();
}
} else {
iter.remove();
}
}
fFilteredChildren = Collections.unmodifiableCollection(filteredChildren);
if (fFilteredChildren.isEmpty()) {
throw new NoTestsRemainException();
}
}
}
private void filterChild(T child) throws NoTestsRemainException {
if (fFilter != null) fFilter.apply(child);
}