From 4deb0003c425bfaff3923661512c44a315172854 Mon Sep 17 00:00:00 2001
From: Alessandro Benedetti <a.benedetti@sease.io>
Date: Mon, 24 Apr 2023 17:28:12 +0200
Subject: [PATCH] Word2VecSynonymFilter constructor null check (#12169)

---
 .../analysis/synonym/word2vec/Word2VecSynonymFilter.java       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lucene/analysis/common/src/java/org/apache/lucene/analysis/synonym/word2vec/Word2VecSynonymFilter.java b/lucene/analysis/common/src/java/org/apache/lucene/analysis/synonym/word2vec/Word2VecSynonymFilter.java
index 29f9d37d5fd..6088d8d6efc 100644
--- a/lucene/analysis/common/src/java/org/apache/lucene/analysis/synonym/word2vec/Word2VecSynonymFilter.java
+++ b/lucene/analysis/common/src/java/org/apache/lucene/analysis/synonym/word2vec/Word2VecSynonymFilter.java
@@ -65,6 +65,9 @@ public final class Word2VecSynonymFilter extends TokenFilter {
       int maxSynonymsPerTerm,
       float minAcceptedSimilarity) {
     super(input);
+    if (synonymProvider == null) {
+      throw new IllegalArgumentException("The SynonymProvider must be non-null");
+    }
     this.synonymProvider = synonymProvider;
     this.maxSynonymsPerTerm = maxSynonymsPerTerm;
     this.minAcceptedSimilarity = minAcceptedSimilarity;