// Get fresh sorting bins for each non empty type.
sorted = new ArrayList(); // not synchronized like we want.
unsorted = new ArrayList();
}
for( int j = 0; j < numInterceptors; j++ ) {
Interceptor interceptor = interceptors[i][j];
if (interceptor instanceof Comparable) {
sorted.add(interceptor);
} else {
unsorted.add(interceptor);
}