fix not install jdk 1.8 issue
fix not install jdk 1.8 issue

zstackio/zstack-utility,mingjian2049/zstack-utility,live4thee/zstack-utility,live4thee/zstack-utility,mingjian2049/zstack-utility,mrwangxc/zstack-utility,mrwangxc/zstack-utility,live4thee/zstack-utility,zstackorg/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,mrwangxc/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,mingjian2049/zstack-utility