Groovyのちょっとしたこと「Groovyの2.2がリリースされました。その１」 ref: http://qiita.com/aya_eiya/items/f2f669b67b7368b7aad0

file0.txt

/*
2.2.x added Implicit closure coercion
*/

interface StringFilter{
  def filter(String source);
}

class SemicollonRemover{
  static String remove(String source,StringFilter filter){
    filter.filter(source)
  }
}

/*
2.2.x added Implicit closure coercion
*/

interface StringFilter{
  def filter(String source);
}

class SemicollonRemover{
  static String remove(String source,StringFilter filter){
    filter.filter(source)
  }
}

println "I'm Groovy $GroovySystem.version"
println SemicollonRemover.remove('hello;world;') {s->s.replaceAll(';','')}

file2.txt

println SemicollonRemover.remove('hello;world;') {s->s.replaceAll(';','')}

file3.txt

println SemicollonRemover.remove('hello;world;' , {s->s.replaceAll(';','')} as StringFilter)

ImplicitClosureCoercion.groovy

/*
2.2.x added Implicit closure coercion
*/

interface StringFilter{
  def filter(String source);
}

class SemicollonRemover{
  static String remove(String source,StringFilter filter){
    filter.filter(source)
  }
}

println "I'm Groovy $GroovySystem.version"
println SemicollonRemover.remove('hello;world;') {s->s.replaceAll(';','')}

Out

I'm Groovy 2.2.1
helloworld