Maven – Exclude log4j.properties in Jar file Posted on October 19, 2014 By mkyong This example sho

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 Maven – Exclude log4j.properties in Jar file

Posted on October 19, 2014

This example shows you how to use Maven to exclude the log4j.properties file from your Jar file.

Note
Please, DO NOT include the log4j.properties into the final Jar file, it will cause multiple
log4j.properties files in the classpath, if someone is depending on your Jar, you may accidentally override their logging configurations, depends which Jar is loaded first.
pom.xml
<project>
 
  <build>
    <plugins>
 
	<!-- Make this jar executable -->
	<plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-jar-plugin</artifactId>
		<configuration>
		        <!-- exclude log4j.properties -->
			<excludes>
				<exclude>**/log4j.properties</exclude>
			</excludes>
			<archive>
			    <manifest>
				<addClasspath>true</addClasspath>
				<mainClass>com.mkyong.core.utils.testing</mainClass>
				<classpathPrefix>dependency-jars/</classpathPrefix>
		            </manifest>
			</archive>
		</configuration>
	</plugin>
 
    </plugins>
  </build>
 
</project>

Please pass in your log4j.properties file via log4j.configuration system property like this

$ java -jar -Dlog4j.configuration=file:/full_path/log4j.properties final.jar
Posted on October 19, 2014

This example shows you how to use Maven to exclude the log4j.properties file from your Jar file.

Note
Please, DO NOT include the log4j.properties into the final Jar file, it will cause multiple
log4j.properties files in the classpath, if someone is depending on your Jar, you may accidentally override their logging configurations, depends which Jar is loaded first.
pom.xml
<project>
 
  <build>
    <plugins>
 
	<!-- Make this jar executable -->
	<plugin>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-jar-plugin</artifactId>
		<configuration>
		        <!-- exclude log4j.properties -->
			<excludes>
				<exclude>**/log4j.properties</exclude>
			</excludes>
			<archive>
			    <manifest>
				<addClasspath>true</addClasspath>
				<mainClass>com.mkyong.core.utils.testing</mainClass>
				<classpathPrefix>dependency-jars/</classpathPrefix>
		            </manifest>
			</archive>
		</configuration>
	</plugin>
 
    </plugins>
  </build>
 
</project>

Please pass in your log4j.properties file via log4j.configuration system property like this

$ java -jar -Dlog4j.configuration=file:/full_path/log4j.properties final.jar

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