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<p class="MsoNormal"><span style="font-size:11.0pt">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks for the test case, we will take a look. I have created
<a href="https://bugs.openjdk.org/browse/JDK-8370951">https://bugs.openjdk.org/browse/JDK-8370951</a> for investigation and tracking purposes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Lois<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">valhalla-dev <valhalla-dev-retn@openjdk.org> on behalf of Grégoire Neuville <gregoire.neuville@gmail.com><br>
<b>Date: </b>Thursday, October 30, 2025 at 7:11</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span style="font-size:12.0pt;color:black">AM<br>
<b>To: </b>valhalla-dev@openjdk.org <valhalla-dev@openjdk.org><br>
<b>Subject: </b>JEP 401 EA report: runtime warning (Circularity error)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Hello,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">I get the following warning :<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">[0,123s][warning][class,preload] Preloading of class Main$Trampo during loading of class Main$Trampo$SubTr (cause: field type in LoadableDescriptors attribute) failed : java/lang/ClassCircularityError<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">while trying to *run* this code (it compiles fine) :<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">value record Trampo<A>(A a, SubTr<?, A> sub) {<br>
<br>
value record SubTr<A, B>(Trampo<A> stack, F<A, Trampo<B>> cont) {}<br>
}<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">void main() {<br>
final var tr = new Trampo<>(1, new Trampo.SubTr<>(new Trampo<>(0, null), i -> new Trampo<>(i + 1, null)));<br>
<br>
IO.println("TRAMPO => %s".formatted(tr));<br>
}<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">This is on java :<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">openjdk version "26-jep401ea2" 2026-03-17<br>
OpenJDK Runtime Environment (build 26-jep401ea2+1-1)<br>
OpenJDK 64-Bit Server VM (build 26-jep401ea2+1-1, mixed mode, sharing)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Hope it will help,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt">Grégoire Neuville<o:p></o:p></span></p>
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