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https://issues.apache.org/jira/browse/KAFKA-5863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Harris updated KAFKA-5863:
-------------------------------
Fix Version/s: 3.8.0
> Potential null dereference in DistributedHerder#reconfigureConnector()
> ----------------------------------------------------------------------
>
> Key: KAFKA-5863
> URL: https://issues.apache.org/jira/browse/KAFKA-5863
> Project: Kafka
> Issue Type: Bug
> Components: connect
> Reporter: Ted Yu
> Assignee: Greg Harris
> Priority: Minor
> Fix For: 3.8.0
>
>
> Here is the call chain:
> {code}
> RestServer.httpRequest(reconfigUrl, "POST",
> taskProps, null);
> {code}
> In httpRequest():
> {code}
> } else if (responseCode >= 200 && responseCode < 300) {
> InputStream is = connection.getInputStream();
> T result = JSON_SERDE.readValue(is, responseFormat);
> {code}
> For readValue():
> {code}
> public <T> T readValue(InputStream src, TypeReference valueTypeRef)
> throws IOException, JsonParseException, JsonMappingException
> {
> return (T) _readMapAndClose(_jsonFactory.createParser(src),
> _typeFactory.constructType(valueTypeRef));
> {code}
> Then there would be NPE in constructType():
> {code}
> public JavaType constructType(TypeReference<?> typeRef)
> {
> // 19-Oct-2015, tatu: Simpler variant like so should work
> return _fromAny(null, typeRef.getType(), EMPTY_BINDINGS);
> {code}
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