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From "Jeff Jirsa (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-13891) fromJson(null) throws java.lang.NullPointerException on Cassandra
Date Sat, 20 Jan 2018 01:10:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-13891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeff Jirsa updated CASSANDRA-13891:
-----------------------------------
    Description: 
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:
{code:java}
create type type1
(
id int,
name text
);

create table table1
(
id int,
t FROZEN<type1>,

primary key (id)
);{code}
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.

  was:
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.



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