Below is my project structure.
[![enter image description here](https://i.stack.imgur.com/CtajC.png)](https://i.stack.imgur.com/CtajC.png)

I require to copy a file from the location \MainProject\src\non-packaged-resources to the \MainProject\sub-project2\sub-project2-web\src\main\resources location on building the MainProject. 
Below is the build section of the pom file of my sub-project2-web but the file is not copied while building.

```
    <build>
    <finalName>sub-project2-web</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <configuration>
                <warSourceExcludes>**/.copyarea.db</warSourceExcludes>
                <packagingExcludes>**/.copyarea.db</packagingExcludes>
            </configuration>
        </plugin>
        <plugin>
            <artifactId>maven-resources-plugin</artifactId>
            <version>2.5</version>
            <executions>
                <execution>
                    <id>copy-resources</id>
                    <!-- here the phase you need -->
                    <phase>validate</phase>
                    <goals>
                        <goal>copy-resources</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>/src/main/resources</outputDirectory>
                        <resources>
                            <resource>
                                <directory>/src/non-packaged-resources</directory>
                                <filtering>true</filtering>
                            </resource>
                        </resources>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

```

When observing the build log, it skips the file being copied with the below error

```
skip non existing resourceDirectory

```

But the maven build gets successful. 
Goal is to bind the file which exists inside the \MainProject\src\non-packaged-resources to all the ears (sub-project1.ear, sub-project2.ear) on building the maven project. First I am trying to test this in the sub-project2-web only. 
Please advice on how to provide correct paths based on this requirement. 
I am using maven 2.2.1 version (project is built on this.)