Chris Egerton created KAFKA-10574:
-------------------------------------
Summary: Infinite loop in SimpleHeaderConverter and Values classes
Key: KAFKA-10574
URL: https://issues.apache.org/jira/browse/KAFKA-10574
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Affects Versions: 2.5.1, 2.6.0, 2.4.1, 2.5.0, 2.3.1, 2.4.0, 2.2.2, 2.2.1,
2.3.0, 2.1.1, 2.2.0, 2.1.0, 2.0.1, 2.0.0, 1.1.1, 1.1.0, 1.1.2, 2.0.2
Reporter: Chris Egerton
Assignee: Chris Egerton
A header value with the byte sequence {{0xEF, 0xBF, 0xBF}} will cause an
infinite loop in the {{Values::parseString}} method. Since that method is
invoked by the default header converter ({{SimpleHeaderConverter}}), any sink
record with that byte array will, by default, cause a sink task reading that
record to stall forever.
This occurs because that byte sequence, when parsed as a UTF-8 string and then
read by a
[StringCharacterIterator|https://docs.oracle.com/javase/8/docs/api/java/text/StringCharacterIterator.html],
causes the
[CharacterIterator.DONE|https://docs.oracle.com/javase/8/docs/api/java/text/CharacterIterator.html#DONE]
character to be returned from
[StringCharacterIterator::current|https://docs.oracle.com/javase/8/docs/api/java/text/StringCharacterIterator.html#current--],
[StringCharacterIterator::next|https://docs.oracle.com/javase/8/docs/api/java/text/StringCharacterIterator.html#next--],
etc., and a check for that character is used by the {{Values}} class for its
parsing logic.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
