Use existing JAVA_HOME if one is set
Use existing JAVA_HOME if one is set

chenxiuyang/onos,jmiserez/onos,sdnwiselab/onos,sdnwiselab/onos,oeeagle/onos,opennetworkinglab/onos,VinodKumarS-Huawei/ietf96yang,oplinkoms/onos,chinghanyu/onos,SmartInfrastructures/dreamer,jinlongliu/onos,SmartInfrastructures/dreamer,Shashikanth-Huawei/bmp,donNewtonAlpha/onos,planoAccess/clonedONOS,chinghanyu/onos,jmiserez/onos,castroflavio/onos,packet-tracker/onos,zsh2938/onos,rvhub/onos,oplinkoms/onos,mengmoya/onos,kuujo/onos,maheshraju-Huawei/actn,kuujo/onos,sdnwiselab/onos,sonu283304/onos,maheshraju-Huawei/actn,CNlukai/onos-gerrit-test,lsinfo3/onos,sdnwiselab/onos,jinlongliu/onos,kuangrewawa/onos,y-higuchi/onos,gkatsikas/onos,oeeagle/onos,LorenzReinhart/ONOSnew,kuujo/onos,kkkane/ONOS,Shashikanth-Huawei/bmp,CNlukai/onos-gerrit-test,Shashikanth-Huawei/bmp,SmartInfrastructures/dreamer,rvhub/onos,mengmoya/onos,mengmoya/onos,packet-tracker/onos,opennetworkinglab/onos,kuangrewawa/onos,jinlongliu/onos,ravikumaran2015/ravikumaran201504,oplinkoms/onos,castroflavio/onos,y-higuchi/onos,sonu283304/onos,opennetworkinglab/onos,donNewtonAlpha/onos,zsh2938/onos,jmiserez/onos,castroflavio/onos,donNewtonAlpha/onos,kuujo/onos,mengmoya/onos,mengmoya/onos,oplinkoms/onos,rvhub/onos,y-higuchi/onos,oplinkoms/onos,rvhub/onos,osinstom/onos,oplinkoms/onos,chinghanyu/onos,kuangrewawa/onos,kuujo/onos,chenxiuyang/onos,oeeagle/onos,Shashikanth-Huawei/bmp,lsinfo3/onos,sonu283304/onos,kkkane/ONOS,osinstom/onos,gkatsikas/onos,gkatsikas/onos,LorenzReinhart/ONOSnew,jinlongliu/onos,gkatsikas/onos,VinodKumarS-Huawei/ietf96yang,zsh2938/onos,ravikumaran2015/ravikumaran201504,planoAccess/clonedONOS,ravikumaran2015/ravikumaran201504,chenxiuyang/onos,packet-tracker/onos,opennetworkinglab/onos,VinodKumarS-Huawei/ietf96yang,VinodKumarS-Huawei/ietf96yang,y-higuchi/onos,lsinfo3/onos,donNewtonAlpha/onos,gkatsikas/onos,donNewtonAlpha/onos,opennetworkinglab/onos,planoAccess/clonedONOS,osinstom/onos,osinstom/onos,chenxiuyang/onos,lsinfo3/onos,sdnwiselab/onos,planoAccess/clonedONOS,castroflavio/onos,CNlukai/onos-gerrit-test,LorenzReinhart/ONOSnew,zsh2938/onos,opennetworkinglab/onos,kkkane/ONOS,gkatsikas/onos,kuujo/onos,maheshraju-Huawei/actn,maheshraju-Huawei/actn,oeeagle/onos,jmiserez/onos,maheshraju-Huawei/actn,packet-tracker/onos,VinodKumarS-Huawei/ietf96yang,y-higuchi/onos,kuujo/onos,sdnwiselab/onos,CNlukai/onos-gerrit-test,sonu283304/onos,kkkane/ONOS,LorenzReinhart/ONOSnew,chinghanyu/onos,osinstom/onos,oplinkoms/onos,Shashikanth-Huawei/bmp,LorenzReinhart/ONOSnew