{
operations = new ArrayList<>(operations);
operations.sort(Comparator
- .<Operation, String>comparing(o -> o.getHostName())
- .<String>thenComparing(o -> o.getName()));
+ .<Operation, String>comparing(o -> o.getHostName()));
+ // not supported in swingjs 3.3.1
+ // .<String>thenComparing(o -> o.getName()));
String lastHost = null;
for (final Operation op : operations)
{