OFBiz: start failed

[cappa_feng]

i just follow the guide of the ofbiz 16.11 by this link .
http://https://cwiki.apache.org/confluence/display/OFBIZ/OFBiz+Tutorial+-+A+Beginners+Development+Guide+for+16.11#OFBizTutorial-ABeginnersDevelopmentGuidefor16.11-RunningApacheOFBiz.
after i download ofbiz.16.11 in my remote server(CentOS 7) and use command: $ ./gradlew cleanAll loadDefault ofbiz the ofbiz building stoped at 96% . then i press "ctrl + c" , i got this massage:



please tell me how to do to solve this problem ...