anchor.diff:  
   [source,golo]
   ----
  -try { 
  -  ... 
  +try {
  +  ...
     raise("Somehow something is wrong")
  -} catch (e) { 
  -  ...  
  +} catch (e) {
  +  ...
     raise("Something was wrong, and here is the cause", e)
   }
   ----
  
positive.code: let pwd = readpwd("type your password:")
  ----
  
  === Exceptions ===
  
  `raise` can be used to throw a `java.lang.RuntimeException`. It comes in two forms: one with a
  
negative.code: # prints "foo => bar"
  println(e: getKey() + " => " + e: getValue())
  ----
  