Get Jolokia metric java.lang:name=ConcurrentMarkSweep,type=GarbageCollector

[ihard]

Ubuntu 14.04
telegraf 1.0.0-rc1-1

I am trying to get metrics via jolokia and send to graphite

[[inputs.jolokia.metrics]]
name = "last_gc_info"
mbean = "java.lang:name=ConcurrentMarkSweep,type=GarbageCollector"
attribute = "LastGcInfo"

[[outputs.graphite]]
servers = ["127.0.0.1:2003"]
prefix = ""
template = "host.tags.measurement.field"
timeout = 2

and generate metrics:
hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageAfterGc_CMS_Old_Gen "map[init:1.34217728e+08_committed:1.34217728e+08_max:1.34217728e+08_used:3.7298032e+07]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageBeforeGc_Compressed_Class_Space "map[init:0_committed:7.110656e+06_max:1.073741824e+09_used:6.722632e+06]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageAfterGc_Compressed_Class_Space "map[max:1.073741824e+09_used:6.722632e+06_init:0_committed:7.110656e+06]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageAfterGc_Par_Survivor_Space "map[init:1.3369344e+07_committed:1.3369344e+07_max:1.3369344e+07_used:2.085712e+06]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageBeforeGc_Par_Survivor_Space "map[init:1.3369344e+07_committed:1.3369344e+07_max:1.3369344e+07_used:2.085712e+06]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageAfterGc_Metaspace "map[committed:5.7442304e+07_max:-1_used:5.6037976e+07_init:0]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_memoryUsageBeforeGc_Metaspace "map[init:0_committed:5.7442304e+07_max:-1_used:5.6037976e+07]" 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_startTime 6.30074714e+08 1472657380 hostname.telegraf.127_0_0_1.app.8088.jolokia.last_gc_info_duration 184 1472657380

how to get the normal metrics?