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From Myrna van Lunteren <m.v.lunte...@gmail.com>
Subject Re: SecurityManager question
Date Wed, 08 Feb 2006 21:43:37 GMT
I am wondering - if you run the test program standalone *with* a
SecurityManager, what do you get?

Myrna


On 2/8/06, Rick Hillegas <Richard.Hillegas@sun.com> wrote:
>
> I am tracking down a problem with autoloading jdbc drivers when running
> from jar files under the Derby test harness on jdk1.6. Capsule summary:
>
> SUCCESS-1 The drivers correctly autoload (from the information in the
> jar file) when I run my test program standalone (without a
> SecurityManager)
>
> SUCCESS-2 The drivers also correctly autoload if I run the test under
> the Derby test harness but disable the SecurityManager
>
> FAILURE  However, the drivers fail to autoload when I run my test
> program under the default Derby test harness (which sets up a
> SecurityManager)
>
> The vm silently swallows the failure. When I run these test cases with
> the the java -verbose flag, I see the following:
>
> o For the success cases, the autoloading of the driver is logged.
>
> o For the failure (Derby test harness) case, around the same place in
> the log, I see AccessControlException being loaded. This is never loaded
> in the success cases.
>
> So I seem to have some kind of SecurityManager issue here. But what?
> Later on in the failure case, I successfully load the driver using
> Class.forName(). What is different in the Derby harness security
> environment between autoload time and Class.forName() time? How can I
> instrument vm startup to tease open the swallowed
> AccessControlException? Would appreciate any advice you may have.
>
> Thanks,
> -Rick
>

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