EXEC metric seems to not work

[tremes]

This is rather question. I defined EXEC metric and experimenting with basic command label=my-label:/bin/sh:-c:echo 1. Is this correct? It doesn't seems so, because I am getting:

ERROR 2017-02-24 13:02:31.514 [kg.apc.p] (): Couldn't get metrics from: [class kg.apc.perfmon.metrics.PerfMonMetricsCreatorImpl]
ERROR 2017-02-24 13:02:31.514 [kg.apc.p] (): No collector object for metric type exec:/bin/sh:-c:echo
ERROR 2017-02-24 13:02:31.514 [kg.apc.p] (): Error executing command
java.lang.RuntimeException: Invalid metric specified: exec:/bin/sh:-c:echo
at kg.apc.perfmon.metrics.AbstractPerfMonMetric.createMetric(AbstractPerfMonMetric.java:57)
at kg.apc.perfmon.PerfMonMetricGetter.setUpMetrics(PerfMonMetricGetter.java:137)
at kg.apc.perfmon.PerfMonMetricGetter.processCommand(PerfMonMetricGetter.java:61)
at kg.apc.perfmon.PerfMonMetricGetter.processNextCommand(PerfMonMetricGetter.java:100)
at kg.apc.perfmon.PerfMonWorker.read(PerfMonWorker.java:197)
at kg.apc.perfmon.PerfMonWorker.processCommands(PerfMonWorker.java:86)
at kg.apc.perfmon.AgentTool.processParams(AgentTool.java:72)
at kg.apc.cmdtools.PluginsCMD.processParams(PluginsCMD.java:63)
at kg.apc.cmdtools.PluginsCMD.processParams(PluginsCMD.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at kg.apc.cmd.UniversalRunner.main(UniversalRunner.java:174)
Caused by: java.lang.RuntimeException: Couldn't get metrics from: [class kg.apc.perfmon.metrics.PerfMonMetricsCreatorImpl]
at kg.apc.perfmon.metrics.PerfMonMetricsService.getMetric(PerfMonMetricsService.java:51)
at kg.apc.perfmon.metrics.AbstractPerfMonMetric.createMetric(AbstractPerfMonMetric.java:48)
... 13 more