Installing JIRA Importers Plugin on versions of Tomcat prior to 6 fails

2013-01-14 08:51:08,390 TP-Processor1 INFO mpemrich 531x1877x1 iyjrff 192.168.185.95 /rest/plugins/1.0/com.atlassian.jira.plugins.jira-importers-plugin-key [atlassian.plugin.util.WaitUntil] Plugins that have yet to be enabled: [com.atlassian.jira.plugins.jira-importers-plugin], 56 seconds remaining
2013-01-14 08:51:08,405 FelixDispatchQueue ERROR      [osgi.container.felix.FelixOsgiContainerManager] Framework error in bundle com.atlassian.templaterenderer.atlassian-template-renderer-velocity16-plugin
org.osgi.framework.ServiceException: Service factory exception: org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.CommonsLogLogChute with the current runtime configuration.
    at org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:311)
    at org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:221)
    at org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:295)
...
Caused by: java.lang.RuntimeException: org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.CommonsLogLogChute with the current runtime configuration.
    at com.atlassian.templaterenderer.velocity.one.six.internal.VelocityTemplateRendererImpl.<init>(VelocityTemplateRendererImpl.java:77)
    at com.atlassian.templaterenderer.velocity.one.six.internal.VelocityTemplateRendererServiceFactory.getService(VelocityTemplateRendererServiceFactory.java:33)
    at org.springframework.osgi.service.exporter.support.internal.support.PublishingServiceFactory.getService(PublishingServiceFactory.java:105)
...
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.) (Caused by org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.))
    at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
...
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.)
    at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
    at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
    ... 59 more
Caused by: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.
    at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:385)