Android : errors whit dvmPauseGc and dvmResumeGc

In my Android app(cordoba phonegap with code in Java and javascript) on startup logcat show this errors

E/dalvikvm﹕ dvmPauseGc(AppLaunch) called - cookie=0xa028 (f=0x1)

E/dalvikvm﹕ dvmResumeGc(0xa028, 0) called (f=0x1)

all works fine but i don't know if this errors are important or not.

thanks in advance