<files> cannot handle files with same name in different directories. First file copied to all destinations.

Using an assembly descriptor with the following <files> element:
<files>
<file>
<source>configuration\pentaho.war\WEB-INF\jboss-web.xml</source>
<outputDirectory>jboss\server\default\deploy\pentaho.war\WEB-INF</outputDirectory>
<filtered>true</filtered>
</file>
<file>
<source>configuration\jboss-portal.sar\portal-server.war\WEB-INF\jboss-web.xml</source>
<outputDirectory>jboss\server\default\deploy\jboss-portal.sar\portal-server.war\WEB-INF</outputDirectory>
<destName>jboss-web.xml</destName>
<filtered>true</filtered>
</file>
</files>

... the resulting assembly contains two identical copies of jboss-web.xml in both target locations and both are identical to the first one specified. It is as if the same file (the first one) is copied to both locations. If I rename one of the files, then, of course, everything works fine.

The pom.xml I used looks like:
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>pentaho</groupId>
<artifactId>afscnPentahoApp</artifactId>
<name>AFSCN Multiproject POM</name>
<version>1.0</version>
<packaging>pom</packaging>

<modules>
<module>components</module>
<module>portlets-jar</module>
<module>portlets-war</module>
</modules>

<build>
<filters>
<filter>c:/PentahoSource/filters/config.properties</filter>
</filters>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptor>solution.xml</descriptor>
</configuration>
</plugin>
</plugins>
</build>
</project>

... and the directory structure looks like:

Top-Level
– configuration
---- configuration\jboss-portal.sar\portal-server.war\WEB-INF\jboss-web.xml