Johno Crawford created LOG4J2-1572:
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Summary: Empty NDC stack logs null
Key: LOG4J2-1572
URL: https://issues.apache.org/jira/browse/LOG4J2-1572
Project: Log4j 2
Issue Type: Bug
Affects Versions: 2.6.2
Reporter: Johno Crawford
Priority: Trivial
Expected behavior
When the NDC stack is empty nothing should be logged (regression in log4j 2.x,
the functionality behaves this way in log4j 1.2).
ex. 2016-09-09 09:54:44,212 INFO [main] Main (Main.java:6) - huuhaa
Actual behavior
When the NDC stack is empty null is logged.
ex. 2016-09-09 09:54:44,212 INFO [main] Main (Main.java:6) - huuhaa null
```java
import org.apache.logging.log4j.LogManager;
public class Main {
public static void main(String[] args) {
LogManager.getLogger(Main.class).info("huuhaa");
}
}
```
```xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m %x%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="INFO">
<AppenderRef ref="STDOUT"/>
</Root>
</Loggers>
</Configuration>
```
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