Use hero instead of this. Also use published aether package.

app/views/play/level/tome/DocFormatter.coffee

@@ -52,7 +52,7 @@ module.exports = class DocFormatter
       @doc.owner ?= 'this'
       ownerName = @doc.ownerName = if @doc.owner isnt 'this' then @doc.owner else switch @options.language
         when 'python', 'lua' then 'self'
-        when 'java' then 'this'
+        when 'java' then 'hero'
         when 'coffeescript' then '@'
         else 'this'
       if @doc.type is 'function'

bower.json

@@ -32,7 +32,7 @@
     "firepad": "~0.1.2",
     "marked": "~0.3.0",
     "moment": "~2.5.0",
-    "aether": "git://github.com/codecombat/aether.git#cashew",
+    "aether": "~0.4.0",
     "underscore.string": "~2.3.3",
     "firebase": "~1.0.2",
     "d3": "~3.4.4",

package.json

@@ -52,7 +52,7 @@
   "dependencies": {
     "JQDeferred": "~2.1.0",
     "ace-builds": "https://github.com/ajaxorg/ace-builds/archive/3fb55e8e374ab02ce47c1ae55ffb60a1835f3055.tar.gz",
-    "aether": "git://github.com/codecombat/aether.git#cashew",
+    "aether": "~0.4.0",
     "async": "0.2.x",
     "aws-sdk": "~2.0.0",
     "bayesian-battle": "0.0.x",