// final since referenced from inner class comparator below
final SingleResultSetHolder[] results = new SingleResultSetHolder[J2DAnalyzer.results.size()];
Set propKeys = new HashSet();
for (int i = 0; i < results.length; ++i) {
SingleResultSetHolder srsh = (SingleResultSetHolder)J2DAnalyzer.results.get(i);
Map props = srsh.getProperties();
Set keys = props.keySet();
propKeys.addAll(keys);
results[i] = srsh;
}