11. Hypersonic
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## 11. Hypersonic

Example 2.7. Example properties for Hypersonic

    openjpa.ConnectionDriverName: org.hsqldb.jdbcDriver
    openjpa.ConnectionURL: jdbc:hsqldb:DB_NAME

### 11.1. Known issues with Hypersonic

- Hypersonic does not support pessimistic locking, so non-optimistic transactions will fail unless the `SimulateLocking` property is set for the openjpa.jdbc.DBDictionary

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