# javax.management.NotCompliantMBeanException: MBean class com.mongodb.ConnectionPoolStatistics does not implement
# DynamicMBean, and neither follows the Standard MBean conventions (javax.management.NotCompliantMBeanException:
# Class com.mongodb.ConnectionPoolStatistics is not a JMX compliant Standard MBean) nor the MXBean
# conventions (javax.management.NotCompliantMBeanException: com.mongodb.ConnectionPoolStatistics: Class
# com.mongodb.ConnectionPoolStatistics is not a JMX compliant MXBean)

# Then probably You have enabled optimizations and interface com.mongodb.ConnectionPoolStatisticsMBean is inlined into class
# com.mongodb.ConnectionPoolStatistics, so to prevent errors simply keep this interface and implementing class with all fields

-keep interface com.mongodb.ConnectionPoolStatisticsMBean
-keepclasseswithmembers class com.mongodb.ConnectionPoolStatistics { *; }