arcgis_js_v36_sdk.zip用unzip不能解壓縮

Archive:  arcgis_js_v36_sdk.zip
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of arcgis_js_v36_sdk.zip or
        arcgis_js_v36_sdk.zip.zip, and cannot find arcgis_js_v36_sdk.zip.ZIP, period.

使用 jar xvf 命令解壓，壓縮包是java打包的zip文件