question: private static MBeanServerBuilder newBuilder ( Class < ? > builderClass ) { try { final Object abuilder = builderClass . newInstance ( ) ; return ( MBeanServerBuilder ) abuilder ; } catch ( RuntimeException x ) { throw x ; } catch ( Exception x ) { final String msg = "Failed to instantiate a MBeanServerBuilder from " + builderClass + ": " + x ; throw new JMRuntimeException ( msg , x ) ; } }
target:  Creates the initial builder according to the javax.management.builder.initial System property - if specified. If any checked exception needs to be thrown, it is embedded in a JMRuntimeException.