NamedParameterUtils.isParameterSeparator throws ArrayIndexOutOfBoundsException for non ASCII characters [SPR-16472]

[spring-projects-issues]

Torsten Kuhnhenne opened SPR-16472 and commented

If you use non ASCII characters as a name (e.g german umlauts) then NamedParameterUtils.isParameterSeparator will throw an ArrayIndexOutOfBoundsException because the character-code is taken as array index for the boolean array

private static final boolean[] separatorIndex = new boolean[128];

This bug was introduced in version 5.3.0 with this commit b2322e5

Example query to reproduce the problem:

INSERT INTO csv2sql (Geplantes_Auslaufdatum, Einführungsjahr, Neueinführung) VALUES (:Geplantes_Auslaufdatum, :Einführungsjahr, :Neueinführung)

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Affects: 5.0.3

Issue Links:

• #21018 [Regression] NamedParameterUtils::parseSqlStatement cannot parse chinese param name ("is duplicated by")
• #20887 NamedParameterJdbcTemplate fails on PostgreSQL array

Referenced from: commits ac7a699