<AWT Dev> 8077409: Drawing deviates when validate() is invoked on java.awt.ScrollPane

mikhail cherkasov mikhail.cherkasov at oracle.com
Fri May 22 16:28:50 UTC 2015

Hello Sergey.

There's a second version of fix with a test:

I found out that the problem is in layout method, it should not use insets,
ViewportSize is already calculated with considering about insets.

During testing jdk without the fix I faced with rendering problems like 
described in jbs bug, also
I faced with duplication of very first pixel of scroll pane.

With http://cr.openjdk.java.net/~mcherkas/8077409v9/webrev.01/
everything works fine. I don't see any rendering issues or problems with 
I also run test from test/(closed)/java/awt/ScrollPane, all tests are 


On 5/5/2015 7:24 PM, Sergey Bylokhov wrote:
> Hi, Mikhail.
> Is it possible to write a test for this issue based on the code in the 
> bug report?
> On 30.04.15 22:44, mikhail cherkasov wrote:
>> Hi there,
>> Could you please  review the fix:
>> bug: https://bugs.openjdk.java.net/browse/JDK-8077409
>> webrev: http://cr.openjdk.java.net/~mcherkas/8077409v9/webrev.00/
>> In ScrollPane, move() is called without considering the quota of
>> Insets when invoking ScrollPane$PeerFixer.adjustmentValueChanged(). When
>> validate() is called, drawing deviates to coordinate with Insets
>> interanlly.
>> Thanks,
>> Mikhail.

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