Oops. Fix build on JDK 1.6 and 1.7.
Oops. Fix build on JDK 1.6 and 1.7.

dindin5258/calcite,datametica/calcite,looker-open-source/calcite,looker-open-source/calcite,looker-open-source/calcite,joshelser/calcite-avatica,wanglan/calcite,looker-open-source/calcite-avatica,sreev/incubator-calcite,xhoong/incubator-calcite,yeongwei/incubator-calcite,arina-ielchiieva/calcite,apache/calcite,jinfengni/incubator-optiq,julianhyde/optiq,apache/calcite,looker-open-source/calcite,googleinterns/calcite,jcamachor/calcite,xhoong/incubator-calcite,YrAuYong/incubator-calcite,vlsi/calcite,b-slim/calcite,b-slim/calcite,apache/calcite,datametica/calcite,apache/calcite-avatica,apache/calcite-avatica,looker-open-source/calcite-avatica,looker-open-source/calcite-avatica,jcamachor/calcite,minji-kim/calcite,b-slim/calcite,mehant/incubator-calcite,dindin5258/calcite,hsuanyi/incubator-calcite,joshelser/calcite-avatica,sudheeshkatkam/incubator-calcite,wanglan/calcite,YrAuYong/incubator-calcite,joshelser/calcite-avatica,apache/calcite,vlsi/calcite,looker-open-source/calcite-avatica,minji-kim/calcite,julianhyde/calcite,sreev/incubator-calcite,googleinterns/calcite,datametica/calcite,glimpseio/incubator-calcite,amoghmargoor/incubator-calcite,jinfengni/optiq,wanglan/calcite,apache/calcite,joshelser/incubator-calcite,julianhyde/calcite,joshelser/incubator-calcite,sudheeshkatkam/incubator-calcite,dindin5258/calcite,dindin5258/calcite,hsuanyi/incubator-calcite,amoghmargoor/incubator-calcite,joshelser/incubator-calcite,looker-open-source/calcite,amoghmargoor/incubator-calcite,glimpseio/incubator-calcite,googleinterns/calcite,hsuanyi/optiq,jinfengni/incubator-optiq,amansinha100/incubator-calcite,YrAuYong/incubator-calcite,mapr/incubator-calcite,glimpseio/incubator-calcite,sreev/incubator-calcite,vlsi/incubator-calcite,b-slim/calcite,jcamachor/calcite,YrAuYong/incubator-calcite,minji-kim/calcite,sudheeshkatkam/incubator-calcite,arina-ielchiieva/calcite,googleinterns/calcite,minji-kim/calcite,mehant/incubator-calcite,jcamachor/calcite,dindin5258/calcite,wanglan/calcite,yeongwei/incubator-calcite,devth/calcite,julianhyde/optiq,hsuanyi/incubator-calcite,julianhyde/calcite,adeshr/incubator-calcite,xhoong/incubator-calcite,hsuanyi/incubator-calcite,julianhyde/calcite,jcamachor/calcite,yeongwei/incubator-calcite,julianhyde/calcite,apache/calcite,sudheeshkatkam/incubator-calcite,vlsi/incubator-calcite,googleinterns/calcite,datametica/calcite,xhoong/incubator-calcite,arina-ielchiieva/calcite,looker-open-source/calcite,adeshr/incubator-calcite,vlsi/calcite,vlsi/calcite,yeongwei/incubator-calcite,dindin5258/calcite,mprudhom/incubator-optiq,b-slim/calcite,jcamachor/calcite,adeshr/incubator-calcite,mapr/incubator-calcite,julianhyde/calcite,hsuanyi/optiq,amoghmargoor/incubator-calcite,googleinterns/calcite,devth/calcite,apache/calcite-avatica,vlsi/calcite,minji-kim/calcite,apache/calcite-avatica,joshelser/incubator-calcite,glimpseio/incubator-calcite,apache/calcite-avatica,mprudhom/incubator-optiq,amansinha100/incubator-calcite,jinfengni/optiq,datametica/calcite,looker-open-source/calcite-avatica,arina-ielchiieva/calcite,arina-ielchiieva/calcite,vlsi/calcite,datametica/calcite,adeshr/incubator-calcite,sreev/incubator-calcite