Maven war packaging, include classes ignores excluded resources - maven

Question

I have the following pom
<project>
....
<packaging>war</packaging>
....
<build>
<plugins>
<plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<excludes>
<exclude>config/**/*</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<archiveClasses>true</archiveClasses>
<warSourceExcludes>WEB-INF/sass/**</warSourceExcludes>
<attachClasses>true</attachClasses>
<webResources>
<resource>
<directory>src/main/resources/config</directory>
<excludes>
<exclude>**/*</exclude>
</excludes>
</resource>
</webResources>
</configuration>
</plugin>
...
</project>
As you can see, I package a WAR while my .class files are not in my WEB-INF/classes folder - they are packaged into a JAR instead.
Now, I am desperately trying to exclude some resources from my JAR - but it does not work. When I run mvn jar:jar - the resources are excluded, however when I run mvn package the resources are there.
Please help.

Answer 1

It seems that #user944849 is right - indeed, the war plugin does not use the jar plugin in order to achieve the JAR packaging.
However, his answer gave me a wrong result still as it will simply create 2 jars - one will be with the resources and the other without. The WAR will still use the wrong one.
The correct answer is to use the new maven resources tag.
The one that corresponds to my configuration looks as follows
<build>
....
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>config/**/*</exclude>
</excludes>
<filtering>false</filtering>
</resource>
</resources>
....
</build>

Answer 2

You do not have the jar:jar goal bound to a lifecycle phase. When you run jar:jar from the command line, the exclusions happen fine; when you run mvn clean package I suspect jar:jar is not executing. Try binding the goal to a phase:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<goals><goal>jar</goal></goals>
<phase>prepare-package</phase>
<configuration>
<excludes>
<exclude>config/**/*</exclude>
</excludes>
</configuration>
</execution>
</executions>
</plugin>
FYI, the archiveClasses feature of the war:war plugin goal does something similar to what I think you're trying to achieve without requiring a separate plugin config.