RFR: 8284415: Collapse identical catch branches in security libs

[Bradford Wetmore]

On Fri, 1 Apr 2022 07:32:21 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

> Let's take advantage of Java 7 language feature - "Catching Multiple Exception Types".
> It simplifies code. Reduces duplication.
> Found by IntelliJ IDEA inspection `Identical 'catch' branches in 'try' statement`

Other that the 1 copyright issue, LGTM.  

I didn't notice any expect behavioral changes between the new and old code.

src/jdk.security.auth/share/classes/com/sun/security/auth/module/Krb5LoginModule.java line 788:

> 786: 
> 787:             }
> 788:         } catch (KrbException | IOException e) {

Please update copyright date.

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Marked as reviewed by wetmore (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8068