When upgrading from Hibernate 5 to Hibernate 6, the following column/java type causes failures: public enum Mode { A, S, R }; @Enumerated(EnumType.STRING) @Column(length = 1) @JdbcType(VarcharJdbcType.class) Mode mode; The column type in the DB is a varchar(1). In Hibernate 5, it considered this …

Varchar(1) column for java enum fails with ClassCastException

mbladel May 5, 2023, 8:02am 2

This is very similar to what was discussed in this post. A JIRA issue was opened for this [HHH-16498] - Hibernate JIRA, you can follow that for any updates.

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Varchar(1) column for java enum fails with ClassCastException

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