我使用gradle 2.8和java 1.8.0_20来构建elasticsearch的主分支并得到错误：
["old Monk",
"Crimson",
"Cutty Sark",
"Dennis",
"Director's Special",
"Discovery",
"Double Blue",
"Evening Special",
"Everyday Gold",
"Frontline",
"Glider Superior",
"Golden Border",
"Golfer's Shot",
"Good Day",
"Haig Gold",
"Havaldar",
"Hero No.1",
"Impact",
"Imperial Blue",
"King Henry",
"King's Gold",
"Malbros Rich"
]
我搜索了谷歌，但没有答案。 这是一个问题：我如何构建弹性搜索？