RFR (JAXP): 8169112: java.lang.VerifyError: (class: GregorSamsa, method: template-bash signature: (LGregorSamsa8; )V) Register 10 contains wrong type
huizhe.wang at oracle.com
Wed Dec 14 20:52:02 UTC 2016
On 12/14/16, 8:28 AM, Langer, Christoph wrote:
> Hi Joe,
> ok, the test is added:
> I'm ready to push, once you are ok with it.
Yes, looks good.
> One question: Is the copyright year of WithParam.java really 2016 or
> should it be corrected?
That's fine. It just means that no change has been made to the original
class before 2016.
> I guess I should also request a downport to jdk8 immediately, as it is
> a regression, right?
Yes, that would be great. Please create a patch for JDK 8 or work with
Aleksej (Aleksej backported your previous patch), and ask for approval
through the jdk8-dev alias.
> Best regards
> *From:*Joe Wang [mailto:huizhe.wang at oracle.com]
> *Sent:* Dienstag, 13. Dezember 2016 23:18
> *To:* Langer, Christoph <christoph.langer at sap.com>
> *Cc:* core-libs-dev at openjdk.java.net; Aleks Efimov
> <aleksej.efimov at oracle.com>; jeff Dinkins <Jeff.Dinkins at oracle.com>
> *Subject:* Re: RFR (JAXP): 8169112: java.lang.VerifyError: (class:
> GregorSamsa, method: template-bash signature: (LGregorSamsa8;)V)
> Register 10 contains wrong type
> Hi Christoph,
> For the test, yes, please add an unit test based on the test
> submitted, sanitize / remove any private information in the original
> test where necessary.
> Best regards,
> On 12/13/16, 12:31 PM, Langer, Christoph wrote:
> this is the fix for the regression introduced with 8150704. Please
> Bug: https://bugs.openjdk.java.net/browse/JDK-8169112
> Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8169112.0/
> The problem occurs during "outlining" of a translet method.
> Outlining happens when the size of bytecode for a translet method
> exceeds the bytecode limit per method imposed by Java and means
> splitting the code into smaller methods. 8150704 added the new
> local variable "_domAdapter" to the implementation of "WithParam"
> without setting the end of its scope. This somehow leads to issues
> in outlining and the local variable in the new method might be
> loaded without being initialized. The problem is not observed for
> smaller translets where probably outlining is not performed.
> Shall I create a new jtreg test from the example attached to the
> bug? I would just run the sample transformation and the test is
> passed when no exception occurs.
> Best regards
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