▁Java ▁software ▁library ▁belonging ▁to ▁the ▁Apache ▁Commons ▁Project . ▁ ▁Da emon ▁provides ▁a ▁port able ▁means ▁of ▁starting ▁and ▁stopping ▁a ▁Java ▁Virtual ▁Machine ▁( J VM ) ▁that ▁is ▁running ▁server - side ▁applications . ▁ ▁Such ▁applications ▁often ▁have ▁additional ▁requirements ▁compared ▁to ▁client - side ▁applications . ▁ ▁For ▁example , ▁the ▁servlet ▁container ▁Tom cat ▁ 4 ▁would ▁need ▁to ▁serialize ▁sessions ▁and ▁shut down ▁web ▁applications ▁before ▁the ▁JVM ▁process ▁termin ates . ▁ ▁Da emon ▁compr ises ▁ 2 ▁parts : ▁a ▁native ▁library ▁written ▁in ▁ ▁C ▁that ▁interfaces ▁with ▁the ▁operating ▁system , ▁and ▁the ▁library ▁that ▁provides ▁the ▁Da emon ▁API , ▁written ▁in ▁Java . ▁ ▁There ▁are ▁two ▁ways ▁to ▁use ▁Commons ▁Da emon : ▁by ▁implementing ▁the ▁da emon ▁interface ▁or ▁by ▁calling ▁a ▁class ▁that ▁provides ▁the ▁required ▁methods ▁for ▁da emon . ▁For ▁example , ▁Tom cat - 4 . 1 . x ▁uses ▁the ▁da emon ▁interface ▁and ▁Tom cat - 5 . 0 . x ▁provides ▁a ▁class ▁whose ▁methods ▁are ▁called ▁by ▁J SV C ▁directly . ▁ ▁Category : Java ▁( programming ▁language ) ▁libraries ▁Commons ▁Da emon <0x0A> </s> ▁La ▁guerra ▁se ▁ac aba ▁– si ▁t ú ▁qu ier es ▁( in ▁English : ▁War ▁is ▁over ▁– if ▁you ▁want ▁it ) ▁is ▁Cub an ▁author ▁Ern esto ▁Juan ▁Cast ell anos ’ s ▁third ▁non - f iction ▁book , ▁and ▁his ▁first ▁about ▁John ▁L enn on .