<AWT Dev> <Awt Dev> [9] Review Request for 8134732: [TEST_BUG] Test java/awt/applet/Applet/AppletFlipBuffer.java fails on Windows with AWTException

Sergey Bylokhov Sergey.Bylokhov at oracle.com
Mon Sep 7 11:59:36 UTC 2015

On 04.09.15 17:42, Semyon Sadetsky wrote:
> Yes, I thought about that. But flip buffer is potentially allowed to
> throw other exceptions caused by the platform.
> Wouldn't it be excessive to introduce such unspecified expectation?

Actually expectations is clearly specified in xxx.createBufferStrategy 
method. There are only two exceptions AWTException and 
IllegalArgumentException. It seems that we cannot get 
IllegalArgumentException in the test since numBuffers>1 and caps!= null. 
All other possible exceptions are unspecified and this is a bug. No?

> On 9/4/2015 5:01 PM, Sergey Bylokhov wrote:
>> On 04.09.15 15:12, Semyon Sadetsky wrote:
>>> The original bug was about ClastCastException.
>> Then probably catch AWTException which is only expected from
>> createBufferStrategy?. this will cover old and new bug.
>>> With the option the test will check nothing if buffering is not
>>> supported on the test server.
>>> On 9/4/2015 2:40 PM, Sergey Bylokhov wrote:
>>>> Hi, Semyon.
>>>> Is it really necessary to catch ClassCastException? Can you try to
>>>> test this functionality via -Dswing.bufferPerWindow. When this option
>>>> is passed the backbuffer should be created automatically if supported.
>>>> On 04.09.15 14:03, Semyon Sadetsky wrote:
>>>>> Hello,
>>>>> Please review fix for JDK9:
>>>>> bug: https://bugs.openjdk.java.net/browse/JDK-8134732
>>>>> webrev: http://cr.openjdk.java.net/~ssadetsky/8134732/webrev.00/
>>>>> It's a test bug: when the flip buffer is not available on the platform
>>>>> its creation attempt causes exception.
>>>>> Solution: ignore the exception.
>>>>> --Semyon

Best regards, Sergey.

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