* @return A list of Token objects.
*/
public List getHistory(int channel) {
ArrayList result = new ArrayList();
if (_records != null) {
result.ensureCapacity(_records.size());
Iterator firings = _records.iterator();
while (firings.hasNext()) {
Token[] record = (Token[])firings.next();
if (channel < record.length) {
if (record[channel] != null) {