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Details

Type: Bug
Resolution: Fixed
Priority: Major
Fix Version/s: 1.3.0-alpha10
Affects Version/s: 1.1.2, 1.3.0-alpha0
Component/s: logback-classic
Labels:
None
Environment:

All

Description

If an exception with a circular-referenced-suppressed exception is logged, logback will throw a StackOverflowError:

Exception e1 = new Exception();
Exception e2 = new Exception();
e2.addSuppressed(e1);
e1.addSuppressed(e2);
LoggerFactory.getLogger("root").error("Error", e1);

Will throw the following:

Exception in thread "main" java.lang.StackOverflowError
	at java.lang.ReflectiveOperationException.<init>(ReflectiveOperationException.java:89)
	at java.lang.reflect.InvocationTargetException.<init>(InvocationTargetException.java:72)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:69)
	at ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:75)
	at ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:75)
	...

A simple stack trace printout will produce the following:

java.lang.Exception
	at NewClass.main(NewClass.java:95)
	Suppressed: java.lang.Exception
		at NewClass.main(NewClass.java:96)
	[CIRCULAR REFERENCE:java.lang.Exception]