[logback-dev] [JIRA] (LOGBACK-1027) Circular Referenced Suppressed Exception Throws StackOverflowError

[Martin Grajcar]

I've just ran into this or something similar with
throwable.getSuppressed()[0].getCause()
== throwable.
Sure, such a cycle is a bug itself, but how am I supposed to fix it, when
all I get is

java.lang.StackOverflowError: null
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at
ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:66)
        at
ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:60)
        at
ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:60)
        at
ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:60)
        at
ch.qos.logback.classic.spi.ThrowableProxy.<init>(ThrowableProxy.java:72)

with the last two lines repeated again and again?

To be constructive: It'd be nice if logback would not only detect such a
situation, but also print some information like
throwable.getSuppressed()[0].getSuppressed()[0] == throwable
for the originally reported case or
throwable.getSuppressed()[0].getCause() == throwable
for my case. It may be helpful sometimes.

While I know the cycle and can reproduce the problem, I still have no idea
how it actually happens.

Regards, Martin.


On Sat, Jan 20, 2018 at 7:35 AM, QOS.CH (JIRA) <noreply-jira at qos.ch> wrote:

> Ceki Gülcü <https://jira.qos.ch/secure/ViewProfile.jspa?name=ceki>
> *commented* on [image: Bug] LOGBACK-1027
> <https://jira.qos.ch/browse/LOGBACK-1027>
>
> Re: Circular Referenced Suppressed Exception Throws StackOverflowError
> <https://jira.qos.ch/browse/LOGBACK-1027>
>
> My apologies, your CLA was already in file.
> [image: Add Comment] <https://jira.qos.ch/browse/LOGBACK-1027#add-comment> Add
> Comment <https://jira.qos.ch/browse/LOGBACK-1027#add-comment>
>
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