Eclipse Bug - Encapsulate Field

Found this bug in Eclipse today while using the Encapsulate field functionality.

Eclipse Version: Version: 3.1.0 Build id: 200412162000

Create this simple class in eclipse -

public class TestEncapsulate {

     String a, b;
}

1) Select the Field a.
2) Right-click and select Refactor -> Encapsulate Field.
3) Click Ok.
4) The following code is generated -

public class TestEncapsulate {

     String b;
    private int a;

     /**
     * @param a The a to set.
     */
    void setA(String a) {
        this.a = a;
    }

     /**
     * @return Returns the a.
     */
    String getA() {
        return a;
    }
}

Problems
a) The field was changed to a private field even though it was package-private earlier.
This is ok by me, since I typically keep the fields as private.

b) The data type was changed from String to int!!!
This is crazy!

The encapsulate field works fine when there is only one package-private field delared in one line (String a;)
It breaks in the above code for both fields 'a' & 'b'.

I have reported this Encapsulate field bug.