RFR 8055262: Update jdk/test/java/util/Base64 tests to use java.util.Base64 instead of sun.misc.BASE64Encoder/Decoder

[Mandy Chung]

On 8/18/14 12:08 AM, Amy Lu wrote:
> There are two tests under jdk/test/java/util/Base64 that have 
> dependency on internal API sun.misc.BASE64Encoder sun.misc.BASE64Decoder
> java/util/Base64/TestBase64Golden.java
> java/util/Base64/TestBase64.java
>
> This fix is to remove the internal API dependency from the tests.
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8055262
> webrev: http://cr.openjdk.java.net/~ewang/amylu/JDK-8055262/webrev.00/
>

This patch looks okay.  I think it's fine to remove the test case 
comparing with sun.misc.BASE64 implementation from these tests.

Mandy