sabi0 commented on code in PR #13041:
URL: https://github.com/apache/lucene/pull/13041#discussion_r1468923263
##########
lucene/queryparser/src/java/org/apache/lucene/queryparser/flexible/core/nodes/TokenizedPhraseQueryNode.java:
##########
@@ -70,10 +70,8 @@ public QueryNode cloneTree() throws
CloneNotSupportedException {
@Override
public CharSequence getField() {
List<QueryNode> children = getChildren();
-
- if (children == null || children.size() == 0) {
+ if (children == null || children.isEmpty()) {
return null;
-
} else {
return ((FieldableNode) children.get(0)).getField();
Review Comment:
According to the `setField(CharSequence)` method below children are not
necessarily `FieldableNode`.
I.e. this line might throw `ClassCastException`?
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