ant to maven conversion: correct approach? - maven

Question

I am tasked with converting a java project which is created with ant to maven.
This is how the project is set up.
All the sources are stored in src directory.
ant's compiling target is to compile the entire src directory.
ant's packaging target has several sub-targets.
Each target has different jars which has include or exclude directories.
This is the approach that I took.
Find out all dependencies. Store them in DependencyManagement section of parent pom
Create a module and copy entire src directory.
compiled it.
Tried to create separate modules for different jar files.
Problem: the files are in-separable. Most of the files are depending on other files. I tried separating them. It results in creating cyclic dependencies. Hence, this step failed.
Use different profiles and maven-jar-plugin to include or exclude packages.
Question 1 when I tried this mvn install -P profile1,profile2, target has only jar file for profile2. They both have maven-jar-plugin and each has different finalName.
<profile>
<id>profile1</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<includes>
<include>**/src/.../profile1/**</include>
<finalName>profile1-lib</finalName>
</configuration>
</plugin>
</plugins>
</build>
</profile>
Is there a different command or am I doing something wrong?
Question 2 one of the lib has several image files in it.
The above approach does not copy the image files in the result jar.
I understand maven wants all resources in resources directory. I will move the images, but for now I am trying to include them in the jar.
I added maven-resources-plugin.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/classes</outputDirectory>
<resource>
<directory>src/main/java/jpl/mipl/mdms/FileService/komodo/ui/savannah/subscription/util/resources</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
When I run mvn install -P profile1, I can see the logs saying Copying # resources.
I can also see them being copied to target/classes. the path that I gave to the plug-in. But they are all copied to that directory.
I want to retain the structure, and the result jar still doesn't have it.
Answer: I have to move them to resources directory. maven is strict.
Anything that I should be doing differently?
Extra Question Am I using the correct plug-ins? Or is there more efficient plug-ins that I should be using?
Thank you.

Answer 1

Answer to Question1 : You have missed the </includes> tag.(Probably because of the stackoverflow formatting!). I am not sure whether you can execute a maven command on two profiles at a time. when you do so, only the second profile gets executed. Try executing the command on each profile separately.
Answer to Question2: You have missed the <resources> opening tag.(Probably because of the stackoverflow formatting!). Moreover, if you want to retain the structure, you can mention the structure too in the <outputDirectory> tag, something like the below:
<outputDirectory>${basedir}/target/classes/src/main/java/jpl/mipl/mdms/FileService/komodo/ui/savannah/subscription/util/resources</outputDirectory>
This may look insane!, but may work if you have few resources directory. If you have more resources, then this may become cumbersome. But anyways, check whether this can be helpful!