James Jithin created LOG4J2-1867:
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Summary: jackson-databind dependency missing in the configuration
document
Key: LOG4J2-1867
URL: https://issues.apache.org/jira/browse/LOG4J2-1867
Project: Log4j 2
Issue Type: Documentation
Components: Documentation
Affects Versions: 2.8.1
Reporter: James Jithin
Was following the link:
http://logging.apache.org/log4j/2.x/manual/configuration.html
to configure log4j2 with yaml.
The following links:
http://logging.apache.org/log4j/2.x/maven-artifacts.html
http://logging.apache.org/log4j/2.x/manual/configuration.html#YAML
asks to import the following dependencies:
<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.8.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.8.1</version>
</dependency>
</dependencies>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-yaml</artifactId>
<version>2.8.6</version>
</dependency>
But not
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
which is a requirement.
Enabling debug mode didn't point out about missing classes
com.fasterxml.jackson.databind.ObjectMapper and
com.fasterxml.jackson.databind.JsonNode which are mentioned in
YamlConfigurationFactory. Such messages on missing classes is really going to
help in resolving issues at the earliest. Please add the missing dependency to
the YAML section. I see that it is provided for JSON configuration, but missed
for YAML.
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