CODEWITHSUNDEEP
javaslf4jlog4j2
user3817430
user3817430

Reputation: 33

java.lang.ClassCastException: org.slf4j.helpers.NOPLogger cannot be cast to org.slf4j.spi.LocationAwareLogger

We have log4j2 implementation (2.0-beta9) and also using slf4j.version 1.7.3. I am initializing the logger like 

private transient final Logger logger = LogManager.getLogger(this.getClass());

Whenever there is any error I am printing errors like 

logger.error("Error message is : " + e); ---> This line is throwing error like

Error:

java.lang.ClassCastException: org.slf4j.helpers.NOPLogger cannot be cast to org.slf4j.spi.LocationAwareLogger

How do I fix this issue?

Upvotes: 0

Views: 8112

Answers (2)

Remko Popma
Remko Popma

Reputation: 36784

Also, beta9 is very old. Please upgrade to rc2 when you have a chance.

Upvotes: 0

Thorbjørn Ravn Andersen
Thorbjørn Ravn Andersen

Reputation: 75386

You most likely have multiple slf4j jars in your complete configuration, and classes defined by one classloader cannot be cast to classes or interfaces defined in another classloader.

Upvotes: 3

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