Fix duplicate result output for composite data.
Fix duplicate result output for composite data.

jmxtrans/jmxtrans-agent,dd00f/jmxtrans-agent,jmxtrans/jmxtrans-agent,dd00f/jmxtrans-agent,jmxtrans/jmxtrans-agent,SaschaMoellering/jmxtrans-agent,dd00f/jmxtrans-agent,cyrille-leclerc/jmxtrans-agent,farnulfo/jmxtrans-agent,farnulfo/jmxtrans-agent,cyrille-leclerc/jmxtrans-agent,cyrille-leclerc/jmxtrans-agent,farnulfo/jmxtrans-agent