RFR: 8292182: [TESTLIB] Enhance JAXPPolicyManager to setup required permissions for jtreg version 7 jar [v2]

[Jaikiran Pai]

On Fri, 12 Aug 2022 20:41:24 GMT, Christian Stein <cstein at openjdk.org> wrote:

>> Enhance `JAXPPolicyManager` to setup required permissions for `jtreg` 7 by accept version information in JAR file names.
>> 
>> Find details in https://bugs.openjdk.org/browse/JDK-8292182
>
> Christian Stein has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove unused import statement

test/jaxp/javax/xml/jaxp/libs/jaxp/library/JAXPPolicyManager.java line 217:

> 215:         URL loc = (cs == null) ? null : cs.getLocation();
> 216:         String path = (loc == null) ? null : loc.getPath();
> 217:         String name = (path == null) ? null : path.substring(path.lastIndexOf('/') + 1);

Is there a chance that this path could end with `/` and thus lead to a `IndexOutOfBoundsException` on this call to `substring`?

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PR: https://git.openjdk.org/jdk/pull/9857