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https://issues.apache.org/jira/browse/LOG4J2-1046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14578363#comment-14578363
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Kenneth Gendron commented on LOG4J2-1046:
-----------------------------------------
Thank you very much
> Circular Exception cause throws StackOverflowError
> --------------------------------------------------
>
> Key: LOG4J2-1046
> URL: https://issues.apache.org/jira/browse/LOG4J2-1046
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.1, 2.3
> Reporter: Kenneth Gendron
> Fix For: 2.4
>
>
> If an exception with a circular-referenced exception (suppressed, or
> otherwise) is logged, log4j will throw a StackOverflowError:
> {code:java}
> Exception e1 = new Exception();
> Exception e2 = new Exception(e1);
> e1.initCause(e2);
> LogManager.getLogger().error("Error", e1);
> {code}
> Will throw the following:
> {code:java}
> java.lang.StackOverflowError
> at java.util.Vector.elementData(Vector.java:730)
> at java.util.Vector.elementAt(Vector.java:473)
> at java.util.Stack.peek(Stack.java:103)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:555)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:147)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> at
> org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:148)
> ...
> {code}
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