(9) RFR: 8179515: Class java.util.concurrent.ThreadLocalRandom fails to Initialize when using SecurityManager

Paul Sandoz paul.sandoz at oracle.com
Thu May 11 21:14:36 UTC 2017



> On 11 May 2017, at 13:46, David Holmes <david.holmes at oracle.com> wrote:
> Bug: https://bugs.openjdk.java.net/browse/JDK-8179515
> webrev: http://cr.openjdk.java.net/~dholmes/8179515/webrev/
> This is a fix contributed by Doug Lea, from a suggestion made by Alan Bateman. While I'm handling the fix process for Doug, it isn't my fix so I am also a Reviewer of this fix. I expect Martin to also review.
> The fix is quite simple - break the dependency between ThreadLocalRandom and the security framework by replacing a doPrivileged block that reads a system property with a call to the JDK internal VM.getSavedProperty(). This allows TLR to be used transitively from the security framework without creating a cyclic initialization dependency which leads to failure to initialize.
> This fixed is approved for 9.
> Thanks,
> David

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