I'm running Jenkins in Tomcat container. On startup, i see the following message in catalina.out:
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Jul 12, 2015 4:55:14 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@558f7e2a: defining beans [filter,legacy]; root of factory hierarchy
Jul 12, 2015 4:55:19 PM hudson.WebAppMain$3 run
INFO: Jenkins is fully up and running
Jul 12, 2015 4:56:00 PM hudson.plugins.git.GitTool$DescriptorImpl getInstallation
WARNING: invalid gitTool selection Default
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Jul 12, 2015 4:58:00 PM hudson.plugins.git.GitTool$DescriptorImpl getInstallation
WARNING: invalid gitTool selection Default
Jul 12, 2015 4:58:07 PM hudson.model.Run execute
INFO: GitPermissionCleaner #156254 main build action completed: SUCCESS
Jul 12, 2015 5:00:00 PM hudson.plugins.git.GitTool$DescriptorImpl getInstallation
WARNING: invalid gitTool selection Default
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While the message is surprising, this is a message the plugin has reported for a very long time.