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To Turn on SQL Tracing in Hibernate

Extremely useful for debugging which HSQL has caused database server exception

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log4j.logger.org.hibernate.SQL=trace
log4j.logger.org.hibernate.engine.query=trace
log4j.logger.org.hibernate.type=trace
log4j.logger.org.hibernate.jdbc=trace

Java 1.7 Preview Edition on OSX

At first I thought I installed it wrong. The Java version number is:

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$ java -version
java version "1.6.0_27"
Java(TM) SE Runtime Environment (build 1.6.0_27-b07-393-11M3511)
Java HotSpot(TM) 64-Bit Server VM (build 20.2-b06-393, mixed mode)

According to the release note, it is the one.