Example.json

{
  "icon": "",
  "background": "",
  "updatePath": "",
  "version": "V1.0",
  "generation": 2,
  "instanceName": "",
  "description": "",
  "author": "",
  "fileSystem": {
    "entirePackageFiles": [
      {
        "downloadLink": "",
        "md5": "",
        "name": "",
        "localPath": ""
      }
    ],
    "customFiles": []
  },
  "startupArguments": {
    "jvmArguments": [
      "-XX:+UseConcMarkSweepGC",
      "-XX:+CMSIncrementalMode",
      "-XX:-UseAdaptiveSizePolicy",
      "-Xmn128M",
      "-XX:MaxPermSize=256M",
      "-Dfml.ignoreInvalidMinecraftCertificates=true",
      "-Dfml.ignorePatchDiscrepancies=true"
    ],
    "miniumMemoryMegaSize": 0,
    "nativespath": "natives",
    "libraryPaths": [
    ],
    "mainJarPath": "",
    "mainClass": "net.minecraft.launchwrapper.Launch",
    "version": "",
    "assetsDir": "assets",
    "assetIndex": "",
    "userType": "mojang",
    "tweakClasses": [
    ]
  }
}