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Date: Thu, 6 Sep 2007 20:12:28 -0700 (PDT)
From: "Vasily Zakharov (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-4755) [classlib][swing][html]
 JEditorPane.setPage() throws NPE
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     [ https://issues.apache.org/jira/browse/HARMONY-4755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vasily Zakharov updated HARMONY-4755:
-------------------------------------

    Patch Info: [Patch Available]

> [classlib][swing][html] JEditorPane.setPage() throws NPE
> --------------------------------------------------------
>
>                 Key: HARMONY-4755
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4755
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Vasily Zakharov
>            Priority: Minor
>         Attachments: Harmony-4755-Fix.patch
>
>
> If JEditorPane.setPage() is called on a visible pane and passed an HTML URL, NPE occurs.
> Here's the simple reproducer:
> import javax.swing.JEditorPane;
> import javax.swing.JFrame;
> public class Test {
>     public static void main(String argv[]) {
>         try {
>             JFrame frame = new JFrame("Test");
>             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>             frame.setSize(100, 100);
>             JEditorPane pane = new JEditorPane();
>             frame.add(pane);
>             frame.setVisible(true);
>             pane.setPage("file:test.html");
>         } catch (Throwable e) {
>             e.printStackTrace(System.out);
>         }
>     }
> } 
> test.html should exist in current directory and may be empty.
> This test produces the following exception on Harmony:
> java.lang.NullPointerException
>         at javax.swing.text.html.BlockView.paint(BlockView.java:77)
>         at javax.swing.text.RootView.paint(RootView.java:211)
>         at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:839)
>         at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:88)
>         at javax.swing.plaf.ComponentUI.update(ComponentUI.java:38)
>         at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:955)
>         at javax.swing.JComponent.paintComponent(JComponent.java:897)
>         at javax.swing.JComponent.paint(JComponent.java:994)
>         at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:1425)
>         at javax.swing.JComponent.paintImmediately(JComponent.java:156)
>         at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:186)
>         at javax.swing.RepaintManager$1.run(RepaintManager.java:80)
>         at java.awt.event.InvocationEvent.runAndNotify(InvocationEvent.java:98)
>         at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:78)
>         at java.awt.EventQueueCore.dispatchEventImpl(EventQueueCore.java:138)
>         at java.awt.EventQueue.dispatchEvent(EventQueue.java:144)
>         at java.awt.EventDispatchThread.runModalLoop(EventDispatchThread.java:74)
>         at java.awt.EventDispatchThread.run(EventDispatchThread.java:48)
> To see the exception, please enable stack trace printing at EventDispatchThread.java, line 89.

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