Name: laC46010 Date: 04/14/99


JDK-1.2.2-N fails to pass SignatureTest of JCK-1.2a that reports
following error messages:

Missing Fields
--------------

java.util.HashMap: field public static final long serialVersionUID
java.util.LinkedList: field public static final long serialVersionUID
java.util.TreeMap: field public static final long serialVersionUID

STATUS:Failed.3 errors

The problem is caused with "serialVersionUID" field inherited from
java.io.Serializable and hidden by non-public field with the same name in the
following classes:

java.util.HashMap,
java.util.LinkedList,
java.util.TreeMap classes.

As result the same Java program is successfully compiled
under JDK-1.2 but JDK-1.2.2-N compiler reports compile-time errors.

The example below demonstrates that.
-----------------Output------------------
% java -fullversion
java full version "JDK-1.2-V"

% javac Test.java
---------------------
% java -fullversion
java full version "JDK-1.2.2-N"

% javac Test.java
Test.java:3: Variable serialVersionUID in class java.util.HashMap not accessible from class Test.
        System.out.println(java.util.HashMap.serialVersionUID);
                                            ^
Test.java:4: Variable serialVersionUID in class java.util.LinkedList not accessible from class Test.
        System.out.println(java.util.LinkedList.serialVersionUID);
                                               ^
Test.java:5: Variable serialVersionUID in class java.util.TreeMap not accessible from class Test.
        System.out.println(java.util.TreeMap.serialVersionUID);
                                            ^
3 errors
---------------Test.java-----------------
public class Test {
    public static void main(String args[]) {
        System.out.println(java.util.HashMap.serialVersionUID);
        System.out.println(java.util.LinkedList.serialVersionUID);
        System.out.println(java.util.TreeMap.serialVersionUID);
    }
}

======================================================================