[jira] [Created] (CASSANDRA-13891) fromJson(null) throws java.lang.NullPointerException on Cassandra

["Marcel Villet (JIRA)" <ji...@apache.org>]

Marcel Villet created CASSANDRA-13891:
-----------------------------------------

             Summary: fromJson(null) throws java.lang.NullPointerException on Cassandra
                 Key: CASSANDRA-13891
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13891
             Project: Cassandra
          Issue Type: Bug
          Components: CQL
         Environment: Cassandra 3.11
            Reporter: Marcel Villet
            Priority: Minor


Basically, {{fromJson}} throws a {{java.lang.NullPointerException}} when NULL is passed, instead of just returning a NULL itself. Say I create a UDT and a table as follows:

{{create type type1
(
    id int,
    name text
);
	
create table table1
(
    id int,
    t FROZEN<type1>,
	
    primary key (id)
);}}

And then try and insert a row as such:

{{insert into table1 (id, t) VALUES (1, fromJson(null));}}

I get the error: {{java.lang.NullPointerException}}

This works as expected: {{insert into table1 (id, t) VALUES (1, null);}}

Programmatically, one does not always know when a UDT will be null, hence me expecting {{fromJson}} to just return NULL.




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