How to execute a maven plugin twice with different property - maven

Question

I would like to build from a maven pom running two sequential executions of the same plugin, in the same phase differing only by a single property, which will result in two different archives being created. Since the configuration is rather complicated, I'd rather NOT copy it just to change one value, which would create a maintenance nightmare. If it was somehow possible to define such a property in the <executions> section of the plugin config, I could avoid this headache.
Question: Is this possible and if so how?
Update: Two answers have mentioned using multiple executions and one of them mentions that you can have separate configurations in each execution. But given that the majority of my configuration is constant between the two executions, can I have one configuration on the plugin level and also have configuration sections in each execution for the parts that are different?

Answer 1

Given the simple Maven Source Plugin configuration (as an example) you have a shared configuration across all of its executions (outside the executions element) and then a custom configuration per each execution, for the same phase, as requested by your question:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.4</version>
<configuration>
<includePom>true</includePom>
</configuration>
<executions>
<execution>
<id>test-id1</id>
<phase>verify</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<finalName>aaa</finalName>
</configuration>
</execution>
<execution>
<id>test-id2</id>
<phase>verify</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<finalName>bbb</finalName>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
The configuration entry <includePom>true</includePom> will in this case be merged with the custom configurations of each execution and as such centralize the common configuration as plugin generic configuration.
For more details on the different level of configurations, you can check official Maven documentation, here, in particular the example "Configuring compile to run twice". Further details are also available on the official POM documentation, here, Plugins section.

Answer 2

You need to create a different execution (still bound to the same phase)
To avoid duplication of the config, you can put the <configuration> outside the <execution> element and then in the 2 executions, you only define the property that is different.
Taken from the maven docs:
<project>
...
<build>
<plugins>
<plugin>
<artifactId>maven-myquery-plugin</artifactId>
<version>1.0</version>
<executions>
<execution>
<id>execution1</id>
<phase>test</phase>
<configuration>
<url>http://www.foo.com/query</url>
<timeout>10</timeout>
<options>
<option>one</option>
<option>two</option>
<option>three</option>
</options>
</configuration>
<goals>
<goal>query</goal>
</goals>
</execution>
<execution>
<id>execution2</id>
<configuration>
<url>http://www.bar.com/query</url>
<timeout>15</timeout>
<options>
<option>four</option>
<option>five</option>
<option>six</option>
</options>
</configuration>
<goals>
<goal>query</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
...
</project>

Answer 3

You create two <execution> elements within the <plugin> declaration. Each <execution> element can have it's own <configuration> section.

Answer 4

I wanted to create a jar and a put in in a zip file with other config files
This worked for me
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4.1</version>
<executions>
<execution>
<id>build-jar-with_dep1</id>
<phase>package</phase>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<finalName>${buildversion}</finalName>
<finalName>finalname</finalName>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<goals>
<goal>assembly</goal>
</goals>
</execution>
<execution>
<id>build_zip1</id>
<phase>package</phase>
<configuration>
<descriptor>src/assembly/bin.xml</descriptor>
<finalName>${buildversion}</finalName>
<finalName>finalname</finalName>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>