Where should log4j.properties be located when using Maven Exec Plugin?

Question

I am trying to use log4j in a project I am executing with the exec-maven-plugin. I have tried placing the file in the following locations:

$PROJECT_HOME
$PROJECT_HOME/src/main/resources
$PROJECT_HOME/target
$PROJECT_HOME/target/classes

For all locations of the file, I am getting the following message when executing the code:

log4j:WARN No appenders could be found for logger (mypacakge.MyClass).
log4j:WARN Please initialize the log4j system properly.

Where should the log4j.properties file be located?

---

exec-maven-plugin config:

...
<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <version>1.2</version>
    <configuration>
        <mainClass>mypackage.Main</mainClass>
    </configuration>
</plugin>
...

Answer 1

You have two choices:

1. Put the property file under

./src/main/resources/log4j.xml

1. You can specify it from the command line:

$ mvn compile exec:java -Dexec.classpathScope=compile -Dexec.mainClass=com.lei.java.sample.Test -Dlog4j.configuration=file:./log4j.xml