[
https://issues.apache.org/jira/browse/LOG4J2-1046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary Gregory updated LOG4J2-1046:
---------------------------------
Description:
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}
was:
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();
e2.addSuppressed(e1);
e1.addSuppressed(e2);
LoggerFactory.getLogger("root").error("Error", e1);
{code}
Will throw the following:
{code:java}
Exception in thread "main" java.lang.StackOverflowError
at java.util.HashMap.hash(HashMap.java:338)
at java.util.HashMap.get(HashMap.java:556)
at java.lang.ClassLoader.getPackage(ClassLoader.java:1608)
at java.lang.Package.getPackage(Package.java:334)
at java.lang.Class.getPackage(Class.java:783)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.toCacheEntry(ThrowableProxy.java:495)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:547)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:113)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.toSuppressedProxies(ThrowableProxy.java:588)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:116)
at
org.apache.logging.log4j.core.impl.ThrowableProxy.toSuppressedProxies(ThrowableProxy.java:588)
{code}
A simple stack trace printout will produce the following:
{code:java}
java.lang.Exception
at NewClass.main(NewClass.java:95)
Suppressed: java.lang.Exception
at NewClass.main(NewClass.java:96)
[CIRCULAR REFERENCE:java.lang.Exception]
{code}
> 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
>
> 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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