Nadav Har'El created CASSANDRA-21738:
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Summary: NullPointerException when an empty value is bound to
USING TIMESTAMP
Key: CASSANDRA-21738
URL: https://issues.apache.org/jira/browse/CASSANDRA-21738
Project: Apache Cassandra
Issue Type: Bug
Reporter: Nadav Har'El
When a prepared statement's {{USING TIMESTAMP ?}} bind marker is given an empty
(zero-length) value, the request fails with a server error caused by a
NullPointerException:
{code:sql}
CREATE TABLE ks.t (k int PRIMARY KEY, v int);
-- prepare, and bind ? to an empty (0-byte) value:
INSERT INTO ks.t (k, v) VALUES (1, 1) USING TIMESTAMP ?;
{code}
{noformat}
Server error: java.lang.NullPointerException: Cannot invoke
"java.lang.Long.longValue()" because the return value of ... is null
{noformat}
Reproduced on Cassandra 5.0.9 and 6.0-alpha2.
CASSANDRA-17822 fixed the same NPE for {{USING TTL ?}}:
{{Attributes.getTimeToLive()}} now treats an empty value like null, i.e. no TTL
({{InsertTest.testEmptyTTL}}). But {{Attributes.getTimestamp()}} has no such
check. It validates the empty buffer, and {{LongType.instance.compose()}}
returns null for it, which is then unboxed into a long.
Expected: an InvalidRequestException, like the one for a null value ("Invalid
null value of timestamp"), instead of a server error.
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