RFR: JDK-8216558: Lookup.unreflectSetter(Field) fails to throw IllegalAccessException for final fields

Mandy Chung mandy.chung at oracle.com
Fri Mar 1 17:50:49 UTC 2019

Hi Adam,

You can add a new test for this specific test case.
MethodHandlesGeneralTest is a general test that you either update
it to fit in existing testing framework or add a new test which
will be simpler for you.  Please include the test in the webrev
for easier review.


On 3/1/19 2:31 AM, Adam Farley8 wrote:
> Hi Mandy,
> Historically, the bigger the change I propose, the more months it takes 
> the OpenJDK community to approve.
> I'm not sure I can justify adding an entire class to test a very 
> specific case.
> Additionally, HasFields seems excessively complex. I don't understand 
> why it feels the
> need to spend 34 lines of code parsing, processing, and storing 20 
> minimal variables it already has.
> Seems like an informative comment, followed by a littany of 
> "cases.add..." would have been a simpler choice.
> Could you tell me if I'm missing something?
> Best Regards
> Adam Farley
> IBM Runtimes
> Mandy Chung <mandy.chung at oracle.com> wrote on 21/02/2019 17:37:54:
>> From: Mandy Chung <mandy.chung at oracle.com>
>> To: Adam Farley8 <adam.farley at uk.ibm.com>
>> Cc: core-libs-dev <core-libs-dev at openjdk.java.net>
>> Date: 21/02/2019 17:41
>> Subject: Re: RFR: JDK-8216558:  Lookup.unreflectSetter(Field) fails
>> to throw IllegalAccessException for final fields
>> Hi Adam,
>> On 2/14/19 3:16 AM, Adam Farley8 wrote:
>> > Hi Mandy,
>> > 
>> > Apologies for the delay.
>> Same here as I returned from vacation yesterday.
>> > Could you review this cdiff as a proposal for the jtreg test?
>> > 
>> > Made sense to modify the existing test set for MethodHandle rather  than
>> > add a new one.
>> Yes it'd be better if you extend the MethodHandlesGeneralTest and
>> MethodHandlesTest to test the write access.
>> To add the test cases properly, MethodHandlesTest.HasFields
>> should be modified to include the read-only fields.  It might
>> be cleaner to add a new HasReadOnlyFields class and maybe a new
>> TEST_SET_ACCESSIBLE bit that requests to call setAccessible(true)
>> and testSetter expects unreflectSetter to throw exception on
>> static final fields (possibly additional bits might be needed).
>> Mandy
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