JPMS Access Checks, Verification and the Security Manager

David Holmes david.holmes at
Tue May 23 08:51:56 UTC 2017

On 23/05/2017 6:20 PM, Alan Bateman wrote:
> Volker - one suggestion for your experiments is to change your JDK 8 
> security properties file ( to add 
> "com.sun.crypto.provider." to the value of the "package.access" 
> property. That should mean you will get the same AccessControlException 
> with JDK 8 as you do with JDK 9. It may help to reason about the JDK 8 
> behavior, including what is triggered by verification, before looking at 9.
> On the "Error: A JNI error has occurred, please check your installation 
> and try again" message. It's not core to your questions of course but I 
> agree it is confusing. Ramanand Patil had a number of attempts on 
> core-libs-dev to improve this and it may be that more is needed there.

Yes I was sure we had agreed to remove that and I don't see it in Oracle 
JDK so perhaps it is only in OpenJDK launcher?


> -Alan

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