[CASSANDRA-13592] Null Pointer exception at SELECT JSON statement

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.2.11, 3.0.15, 3.11.1, 4.0-alpha1, 4.0
• Component/s: Legacy/CQL
• Labels: beginner

Environment

Debian Linux

• Bug Category: Correctness - API / Semantic Implementation
• Severity: Normal
• Assignee: Zhao Yang
• Reporter: Wyss Philipp

Authors

Zhao Yang

Reviewers

Benjamin Lerer

• Created: 12/Jun/17 13:33
• Updated: 15/May/20 08:06
• Resolved: 07/Jul/17 16:17

Description

A Nulll pointer exception appears when the command

SELECT JSON * FROM examples.basic;

---MORE---
<Error from server: code=0000 [Server error] message="java.lang.NullPointerException">

Examples.basic has the following description (DESC examples.basic;):
CREATE TABLE examples.basic (
    key frozen<tuple<uuid, int>> PRIMARY KEY,
    wert text
) WITH bloom_filter_fp_chance = 0.01
    AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
    AND comment = ''
    AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'}
    AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND crc_check_chance = 1.0
    AND dclocal_read_repair_chance = 0.1
    AND default_time_to_live = 0
    AND gc_grace_seconds = 864000
    AND max_index_interval = 2048
    AND memtable_flush_period_in_ms = 0
    AND min_index_interval = 128
    AND read_repair_chance = 0.0
    AND speculative_retry = '99PERCENTILE';

The error appears after the --MORE-- line.

The field "wert" has a JSON formatted string.