Maven generates duplicate pom.xml and pom.properties files in a jar

Question

I package my Maven-based Spring app with:

mvn install-DskipTests -Peverything.  

And something strange arises. In META-INF of generated jar, I find duplicate pom.xml and pom.properties files. Can someone explain it? Thanks.

Here is extracted pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.abc.xyz</groupId> <artifactId>migrate-app</artifactId> <packaging>jar</packaging> <version>1.0-SNAPSHOT</version> <name>migrate-app</name> <url>http://maven.apache.org</url> <dependencies>  ..  </dependencies>  <profiles>   <profile>     <id>everything</id>     <build>       <plugins>         <plugin>         <groupId>org.apache.maven.plugins</groupId>         <artifactId>maven-compiler-plugin</artifactId>         <configuration>           <source>1.5</source>           <target>1.5</target>                   </configuration>       </plugin>       <plugin>         <groupId>org.apache.maven.plugins</groupId>         <artifactId>maven-surefire-plugin</artifactId>         <version>2.5</version>         <configuration>           <skipTests>true</skipTests>         </configuration>       </plugin>                   </plugins>     </build>   </profile>   </profiles>    

Output for command:

mvn -version 

Apache Maven 3.0.4 (r1232337; 2012-01-17 15:44:56+0700) Maven home: C:\apache-maven-3.0.4\bin.. Java version: 1.6.0_30, vendor: Sun Microsystems Inc. Java home: C:\Program Files (x86)\Java\jdk1.6.0_30\jre Default locale: en_US, platform encoding: Cp1252 OS name: "windows 7", version: "6.1", arch: "x86", family: "windows"

Answer 1

Add

<build>    <plugins>      <plugin>        <artifactId>maven-jar-plugin</artifactId>        <configuration>          <archive>            <addMavenDescriptor>false</addMavenDescriptor>          </archive>        </configuration>      </plugin>    </plugins> </build> 

to your pom.xml