java/net/SetFactoryPermission/ fails with error "factory already defined"

Sean Coffey sean.coffey at
Thu Sep 8 14:21:48 UTC 2016

Good point. That test should be run in other vm mode. I've logged
We can do the code review on net-dev mailing list.


On 08/09/2016 12:19, EL MAAKOUL IMANE wrote:
> Hello,
> When running Jtreg test suite with jdk9, the test: 
> java/net/SetFactoryPermission/ fails with the 
> exception:
> java.lang.Error: factory already defined
> This error only happens when: java/net/ is run before 
> java/net/SetFactoryPermission/ within the 
> same agent. This is explained by the fact that in 
> java/net/ calls the setter 
> URL.setURLStreamHandlerFactory is called with a non-null parameter, 
> which can be called only once in a JVM instance according to the JAVA API.
> Consequently the VM that runs java/net/ is invalid for 
> runningjava/net/SetFactoryPermission/
> To solve that problem, an annotation could be added to the test 
> java/net/ to tell Jtreg runner to spawna new VM for 
> that test.
> Note: This is reproducible using the -agentvm and setting the 
> concurrency to 1 and also renaming
> the package of one of the tests to force it to be executed first.
> Reproducible always with jdk9.
> Best regards,
> Imane EL Maakoul

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