[KAFKA-5863] Potential null dereference in DistributedHerder#reconfigureConnector() - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.8.0
Component/s: connect
Labels:
None

Description

Here is the call chain:

                                RestServer.httpRequest(reconfigUrl, "POST", taskProps, null);

In httpRequest():

            } else if (responseCode >= 200 && responseCode < 300) {
                InputStream is = connection.getInputStream();
                T result = JSON_SERDE.readValue(is, responseFormat);

For readValue():

    public <T> T readValue(InputStream src, TypeReference valueTypeRef)
        throws IOException, JsonParseException, JsonMappingException
    {
        return (T) _readMapAndClose(_jsonFactory.createParser(src), _typeFactory.constructType(valueTypeRef));

Then there would be NPE in constructType():

    public JavaType constructType(TypeReference<?> typeRef)
    {
        // 19-Oct-2015, tatu: Simpler variant like so should work
        return _fromAny(null, typeRef.getType(), EMPTY_BINDINGS);