Full search and replace of strings in source files when copying resources - maven

Question

I have some java source files that use a package prefix (they are emulating some JDK classes). I use these files with the prefix to run against some unit tests. If the tests pass I want to produce a jar that contains the source files but with the package prefix removed from all the java files.
I am using maven for builds. Does any one know of a way to do this? Essentially what I want is something like the resources plugin filtering feature, but that does proper search and replace (like: s/my.package.prefix.//g), rather than filtering on ${vars}.

Answer 1

You can also use
http://code.google.com/p/maven-replacer-plugin/
100% maven and doing exactly what you want and more

Answer 2

This can be solved with the antrun plugin. Firstly the sources need to be copied to the target directory, with:
<build>
...
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.java</include>
</includes>
</resource>
</resources>
...
</build>
Secondly you use the replace task of the antrun plugin to replace the files using the prepare package phase
<build>
...
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<phase>prepare-package</phase>
<configuration>
<tasks>
<replace token= "my.package.prefix." value="" dir="target/classes">
<include name="**/*.java"/>
</replace>
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
...
</build>
This will copy the source files to target/classes in the process-resources phase, do a search and replace on the files inplace in the target/classes directory in the prepare-package phase and finally they will jarred up in the package phase.