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javahibernatelog4jslf4jc3p0

Using slf4j with c3p0 and Hibernate

I'm trying to get my c3p0 to log to slf4j (log4j backend).

The c3p0 documentation, says that this property will do the trick:

com.mchange.v2.log.MLog=com.mchange.v2.log.slf4j.Slf4jMLog

However, c3p0 gives the error on startup:

Tried without success to load the following MLog classes:
    com.mchange.v2.log.log4j.Log4jMLog

I have included Hibernate c3p0, using Gradle:

compile group: 'org.hibernate', name: 'hibernate-c3p0', version: '4.3.6.Final'

It includes a c3p0 0.9.2.1 jar, which does not have this MLog class. So i explicitly include c3p):

compile group: 'c3p0', name: 'c3p0', version: '0.9.1.2'

...which does have the class, but c3p0 still refuses to load it (same error) - i guess because of a c3p0 version conflict, the old version is ignored.

Not sure where to go from here; any help will be appreciated.

Solution

  • slf4j support is a c3p0 0.9.5 feature.

    please try upgrading to c3p0 0.9.5-pre9.