ComponentsJMXRegistration.registerMBeans() throws when logging is enabled and a bean ws already registered

Line 99 throws, as String.format is NOT passed the objectName:

public void registerMBeans() throws CacheException {
try {
List<ResourceDMBean> resourceDMBeans = getResourceDMBeansFromComponents();
boolean trace = log.isTraceEnabled();
for (ResourceDMBean resource : resourceDMBeans) {
ObjectName objectName = getObjectName(resource);
if (!mBeanServer.isRegistered(objectName)) {
try

{ mBeanServer.registerMBean(resource, objectName); if (trace) log.trace(String.format("Registered %s under %s", resource, objectName)); }

catch (InstanceAlreadyExistsException e)

{ //this might happen if multiple instances are trying to concurrently register same objectName log.info("Could not register object with name:" + objectName + "(" + e.getMessage() + ")"); }

} else

{ if (log.isDebugEnabled()) line 99: log.debug(String.format("Object name %s already registered"), objectName); }

}
}
catch (Exception e)

{ throw new CacheException("Failure while registering mbeans", e); }

}