Will questions

Will answers

• Why accessing to groovy map through variable in parentheses always returns null?
• How to dynamically add a button group to panel after panel is built
• what does the -> operator means and usages in grails?
• Java (or Groovy) equivalent of Scala's apply
• Accessing the components from another class
• Is static Initializer in JAVA a closure
• hasProperty returns null
• Groovy list sort on two criteria
• Getting last day of current month
• On closures and groovy builder pattern