T3rm1 created LOG4J2-1941:
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Summary: Formatting of stacktrace changed to wrong format for
exceptions with no message
Key: LOG4J2-1941
URL: https://issues.apache.org/jira/browse/LOG4J2-1941
Project: Log4j 2
Issue Type: Bug
Components: Core
Affects Versions: 2.8.2, 2.7
Reporter: T3rm1
Bug did not occur in 2.5.
The output for the stacktrace of a Throwable has changed after 2.5. The
behavior was that no exception message was printed when it was null. RIght now
it will always print the message and in case of null it just prints "null".
This is even different to the default printStackTrace() formatting which omits
the message when it is null.
The problem is here:
https://github.com/apache/logging-log4j2/blob/log4j-2.8.2/log4j-core/src/main/java/org/apache/logging/log4j/core/impl/ThrowableProxy.java#L459
The code always prints a colon and the message. There should be a null check.
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