RFR 8168075: Custom system class loader + security manager + malformed policy file = recursive initialization

Adam Petcher adam.petcher at oracle.com
Wed Jan 11 14:56:00 UTC 2017


On 1/11/2017 9:27 AM, Claes Redestad wrote:
> Hi Adam,
>
> On 01/11/2017 02:34 PM, Adam Petcher wrote:
>> Please review the following bug fix:
>>
>> http://cr.openjdk.java.net/~apetcher/8168075/webrev.00/
>>
>> This fixes a bug in which a permission check would try to load 
>> resources while the system class loader is being initialized. 
>> Resources cannot be loaded at this time, so this change ensures that 
>> the resources are loaded earlier.
>>
>
> couldn't this be done in System.setSecurityManager rather than in a 
> static block
> in SecurityManager?
>
> http://cr.openjdk.java.net/~redestad/scratch/8168075.alt/
>
> The provided EarlyLoad test still pass with this approach, and this 
> would avoid loading a few
> classes and a resource bundle when not installing a security manager 
> (the SecurityManager
> class is always loaded on bootstrap).
That would work, but I was trying to avoid cluttering up System.java 
with this code. What if we put it in the SecurityManager constructor? 
Would that accomplish the same goal?
>
> Thanks!
>
> /Claes



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