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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">I also encountered this bug which happens if there there is a loop in the nested/suppressed exceptions.</p> <p style="margin: 10px 0 0 0">I printed the Throwable hierarchy together with the `System.identityHashCode` of each Throwable of the Exception that triggers the bug. As you can see the Exceptions repeat:</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.CompilationFailedException 1879362884
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.a 1262168655
suppressed[0]: <span class="code-keyword" style="color: #000091">class </span>java.lang.RuntimeException 781103026
cause: <span class="code-keyword" style="color: #000091">class </span>java.util.concurrent.ExecutionException 2050964420
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.utils.Z 147663797
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.a 1262168655
suppressed[0]: <span class="code-keyword" style="color: #000091">class </span>java.lang.RuntimeException 781103026
cause: <span class="code-keyword" style="color: #000091">class </span>java.util.concurrent.ExecutionException 2050964420
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.utils.Z 147663797
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.a 1262168655
suppressed[0]: <span class="code-keyword" style="color: #000091">class </span>java.lang.RuntimeException 781103026
cause: <span class="code-keyword" style="color: #000091">class </span>java.util.concurrent.ExecutionException 2050964420
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.utils.Z 147663797
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.a 1262168655
suppressed[0]: <span class="code-keyword" style="color: #000091">class </span>java.lang.RuntimeException 781103026
cause: <span class="code-keyword" style="color: #000091">class </span>java.util.concurrent.ExecutionException 2050964420
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.utils.Z 147663797
cause: <span class="code-keyword" style="color: #000091">class </span>com.android.tools.r8.a 1262168655
...
</pre>
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</div> <p style="margin: 10px 0 0 0"> </p> <p style="margin: 10px 0 0 0">Therefore the problem source is simple: there is no loop-detection in the ThrowableProxy implementation, e.g. a `HashSet<Throwable>` where each processed Throwable is recorded so that we can stop when a loop is detected. </p> <p style="margin: 10px 0 0 0"> </p> </td>
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