[jira] Closed: (HARMONY-2527) [classlib][awt]Component.paint method should check if passed parameter in null

["Alexei Zakharov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-2527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexei Zakharov closed HARMONY-2527.
------------------------------------


verified by Andrey

> [classlib][awt]Component.paint method should check if passed parameter in null
> ------------------------------------------------------------------------------
>
>                 Key: HARMONY-2527
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2527
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Nikolay Kuznetsov
>         Assigned To: Alexei Zakharov
>            Priority: Minor
>         Attachments: Container1.patch, ContainerRTest1.patch
>
>
> RI implementations of paint methods checks if passed Graphics parameter is null. I've found several bugs[1] in Sun's database indicating activity on adding check to paint methods. In most of the real cases null value was passed because the component was clipped or invisible(and it seems to be OK).
> [1] http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4036712
>      http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4191142
> Attached test passes on RI and throws NPE on harmony implementation.
> RI
> java test
> true
> true
> true
> true
> true
> true
> Harmony:
> false
> java.lang.NullPointerException
>         at java.awt.Container.paintComponentsImpl(Container.java)
>         at java.awt.Container.paint(Container.java:930)
>         at test.testPaint(test.java:58)
>         at test.main(test.java:119)
> false
> java.lang.NullPointerException
>         at java.awt.Container.paintComponentsImpl(Container.java)
>         at java.awt.Container.paintComponents(Container.java:977)
>         at test.testPaintComponents(test.java:70)
>         at test.main(test.java:122)
> false
> java.lang.NullPointerException
>         at java.awt.Container.paintComponentsImpl(Container.java)
>         at java.awt.Container.paint(Container.java:930)
>         at java.awt.Container.print(Container.java:318)
>         at test.testPrint(test.java:82)
>         at test.main(test.java:123)
> false
> java.lang.NullPointerException
>         at java.awt.Container.paintComponentsImpl(Container.java)
>         at java.awt.Container.paintComponents(Container.java:977)
>         at java.awt.Container.printComponents(Container.java:968)
>         at test.testPrintComponents(test.java:94)
>         at test.main(test.java:124)
> false
> java.lang.NullPointerException
>         at java.awt.Container.paintComponentsImpl(Container.java)
>         at java.awt.Container.paint(Container.java:930)
>         at java.awt.Component.update(Component.java:3447)
>         at java.awt.Container.update(Container.java:339)
>         at test.testUpdate(test.java:106)
>         at test.main(test.java:125)
> false

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