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Because (like in this case), an AWT component might actually be
implemented using Swing,<br>
the recommendation is to treat AWT components like Swing, and update
them only on the EDT.<br>
<br>
-phil.<br>
<br>
<div class="moz-cite-prefix">On 11/15/23 4:01 PM, Nikita Provotorov
wrote:<br>
</div>
<blockquote type="cite" cite="mid:CAMTdVeoVr=xzqsMHXeLdZR09G+O8U_AtwTTGS6xPj2PXTheWJw@mail.gmail.com">
<div dir="ltr">
<div>Hello!<br>
</div>
<div>I've discovered that on X11 platforms a call
of java.awt.TextComponent#setText can lead to a call
of javax.swing.JComponent#paintImmediately(java.awt.Rectangle)
on the same thread.</div>
<div>Since java.awt.TextComponent#setText is allowed to be
called on any thread (because it's AWT, not Swing),
JComponent#paintImmediately may be called outside of EDT. Is
this a valid behavior?</div>
<div><br>
</div>
<div>The following stacktrace shows how exactly this can happen:</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">at
javax.swing.JComponent.paintImmediately<br>
at sun.awt.X11.XTextAreaPeer$AWTTextArea.repaintNow<br>
at sun.awt.X11.XTextAreaPeer.repaintText<br>
at sun.awt.X11.XTextAreaPeer.setText<br>
at java.awt.TextComponent.setText</blockquote>
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<div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">Best regards,
<div>Nikita Provotorov</div>
</div>
</div>
</div>
</div>
</blockquote>
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