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javagenericsgroovy

Groovy Generics failure

Besides groovy is way more dynamic then java...

Why is this a compile time error in groovy (unexpected token <):

interface A {
     <T> T getByClass(Class<T> clazz)
}

How do I write this the groovy way?

Solution

  • The Groovy parser does not handle method signatures beginning with Generic information...

    It parses if you add the public modifier:

    interface A {
  public <T> T getByClass( Class<T> clazz )
}

    Though I don't believe you'll gain any type checking at compile time for adding this annotation