6. SLF4J
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## 6. SLF4J

When `openjpa.Log` is set to `slf4j`, OpenJPA will delegate to SLF4J API for logging, which provides several adapters or a simple logging mechanism. For further details on logging adapters and configuring SLF4J, please see the SLF4J website.

Note, as SLF4J does not provide a `FATAL` log level the `SLF4JLogFactory` will map it to the `ERROR` log level.

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