private List<CoreMap> toCoreMaps(
     CoreMap annotation, List<TimeExpression> timeExpressions, SUTime.TimeIndex timeIndex) {
   if (timeExpressions == null) return null;
   List<CoreMap> coreMaps = new ArrayList<CoreMap>(timeExpressions.size());
   for (TimeExpression te : timeExpressions) {
     CoreMap cm = te.getAnnotation();
     SUTime.Temporal temporal = te.getTemporal();
     if (temporal != null) {
       String origText = annotation.get(CoreAnnotations.TextAnnotation.class);
       String text = cm.get(CoreAnnotations.TextAnnotation.class);
       if (origText != null) {
         // Make sure the text is from original (and not from concatenated tokens)
         ChunkAnnotationUtils.annotateChunkText(cm, annotation);
         text = cm.get(CoreAnnotations.TextAnnotation.class);
       }
       Map<String, String> timexAttributes;
       try {
         timexAttributes = temporal.getTimexAttributes(timeIndex);
         if (options.includeRange) {
           SUTime.Temporal rangeTemporal = temporal.getRange();
           if (rangeTemporal != null) {
             timexAttributes.put("range", rangeTemporal.toString());
           }
         }
       } catch (Exception e) {
         logger.log(
             Level.WARNING,
             "Failed to get attributes from " + text + ", timeIndex " + timeIndex,
             e);
         continue;
       }
       Timex timex;
       try {
         timex = Timex.fromMap(text, timexAttributes);
       } catch (Exception e) {
         logger.log(
             Level.WARNING,
             "Failed to process " + text + " with attributes " + timexAttributes,
             e);
         continue;
       }
       cm.set(TimexAnnotation.class, timex);
       if (timex != null) {
         coreMaps.add(cm);
       } else {
         logger.warning("No timex expression for: " + text);
       }
     }
   }
   return coreMaps;
 }
 private void resolveTimeExpressions(
     CoreMap annotation, List<TimeExpression> timeExpressions, SUTime.Time docDate) {
   for (TimeExpression te : timeExpressions) {
     SUTime.Temporal temporal = te.getTemporal();
     if (temporal != null) {
       // TODO: use correct time for anchor
       try {
         int flags = timexPatterns.determineRelFlags(annotation, te);
         // int flags = 0;
         SUTime.Temporal grounded = temporal.resolve(docDate, flags);
         if (grounded == null) {
           logger.warning("Error resolving " + temporal + ", using docDate=" + docDate);
         }
         if (grounded != temporal) {
           te.origTemporal = temporal;
           te.setTemporal(grounded);
         }
       } catch (Exception ex) {
         logger.log(Level.WARNING, "Error resolving " + temporal, ex);
       }
     }
   }
 }