Are groovy variables null-initialized, or is this an IntelliJ bug?

IntelliJ highlights the 'foo' variable in gray, and says "assignment is not used". What I want to know is - it is right or not...

If this were java and not groovy, I know it wouldn't be right.

public class Foo
{
  public Foo()
  {
    Foo foo = null; // this 'foo' instance is gray ("assignment not used")
    try
    {
      foo = new Foo()
      // ...
    }
    finally
    {
      if (foo != null)
        foo.release();
    }

  }

  public void relea开发者_C百科se(){}
}

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Groovy (and Java) local variables must be explicitly initialized before use. Java Language Specification: Initial Values of Variables.

A local variable (§14.4, §14.14) must be explicitly given a value before it is used, by either initialization (§14.4) or assignment (§15.26), in a way that can be verified using the rules for definite assignment (§16 (Definite Assignment)).

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It is a bug. I've created an issue http://youtrack.jetbrains.net/issue/IDEA-81188