RFR: 8344611: Add missing classpath exception

[Sorna Sarathi]

On Wed, 20 Nov 2024 14:02:10 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> Do similar change for:
> 
> ```
> src/java.base/share/native/libjava/ub.h
> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/runtimelink/JimageDiffGenerator.java
> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/runtimelink/ResourcePoolReader.java
> ```

Added the changes for the above files.

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PR Comment: https://git.openjdk.org/jdk/pull/22272#issuecomment-2488724167