Ted Yu created FLINK-3635:
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Summary: Potential null deference in
TwitterExample#SelectEnglishAndTokenizeFlatMap#flatMap
Key: FLINK-3635
URL: https://issues.apache.org/jira/browse/FLINK-3635
Project: Flink
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
{code}
JsonNode jsonNode = jsonParser.readValue(value, JsonNode.class);
if (jsonNode.has("user") &&
jsonNode.get("user").get("lang").asText().equals("en")) {
{code}
jsonNode.get("user").get("lang") may return null, leading to
NullPointerException.
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