Consider code like this:
---
public class T {
    {
         String v = "";
         Integer v = 0;
         System.err.println(v.byteValue());
    }
}
---

The errors for this code is:
---
$ javac T.java
T.java:4: error: variable v is already defined in instance initializer of class T
         Integer v = 0;
                 ^
T.java:5: error: cannot find symbol
         System.err.println(v.byteValue());
                             ^
  symbol: method byteValue()
  location: variable v of type String
2 errors
---

The first error is correct, of course, but the second error seems unnecessary - the variable is "redeclared", so it seems from the point of redeclaration, "v" should mean the new variable.