gjacoby126 commented on code in PR #9452:
URL: https://github.com/apache/iceberg/pull/9452#discussion_r1447601555


##########
flink/v1.18/flink/src/main/java/org/apache/iceberg/flink/util/FlinkVersionDetector.java:
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@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg.flink.util;
+
+import org.apache.flink.streaming.api.datastream.DataStream;
+
+public class FlinkVersionDetector {
+  public String version() {
+    String version = null;
+    try {
+      version = getVersionFromJar();
+    } catch (Exception e) {
+      /* we can't detect the exact implementation version from the jar (this 
can happen if the DataStream class

Review Comment:
   Oh, and just fyi, I'm not affiliated with the engineers who posted the 
original issue this patch fixes; I just came across it while I was 
investigating. So this has happened at least twice in real-world use.



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