question: unregister all collectors . concode_field_sep Collector.MetricFamilySamples next concode_elem_sep Iterator<Collector> collectorIter concode_elem_sep Set<Collector> collectors concode_elem_sep CollectorRegistry defaultRegistry concode_elem_sep Iterator<Collector.MetricFamilySamples> metricFamilySamples concode_field_sep Double getSampleValue concode_elem_sep Double getSampleValue concode_elem_sep void findNextElement concode_elem_sep boolean hasMoreElements concode_elem_sep void unregister concode_elem_sep void register concode_elem_sep Enumeration<Collector.MetricFamilySamples> metricFamilySamples concode_elem_sep Collector.MetricFamilySamples nextElement
target: void function ( ) { collectors . clear ( ) ; }