Technical blog

No extra configuration is needed. If log4j.xml or log4j.properties is present in the classpath, it is picked up and logs are directed to the specified appender(s). I found http://docs.codehaus.org/display/JETTY/Maven+Jetty+Plugin#MavenJettyPlugin-Logging overtly complicated and unnecessary. The logs can be redirected to a file by using a suitable appender in log4j.xml:

    <appender name="FILE" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="./target/dmsweb_log_file.log" />
        <param name="Append" value="false" >
        <param name="MaxBackupIndex" value="1" >
        <param name="MaxFileSize" value="500KB" >
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern"
                value="%d [%t] %-5p %c - %m%n">
        </layout>
    </appender>

There are two options:

• pom.xml:

            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <version>6.1.10</version>
                <configuration>                  
                    ...
                    </scanTargetPatterns>
                    <systemProperties>                      
                        <systemProperty>
                            <name>jetty.port</name>
                            <value>8080</value>
                        </systemProperty>                      
                    </systemProperties>
                </configuration>
            </plugin>

• command prompt: mvn -Djetty.port=8090 jetty:run

The thing to remember is the command line value will override the value in pom.xml.