maven-resources-plugin + profiles - maven

Question

I am moving an existing project (legacy) to maven. It has the following structure:
ParentProject
- EARModule
- src
- target
- pom.xml (ear)
- WARModule
- src
- main
- java
- (java packages and classes)
- resources
- dev
- index.jsp
- prod
- index.jsp
- webapp
- views
- index.jsp (original)
- WEB-INF
- target
- pom.xml (war)
- pom.xml (parent)
I intend to have two different profiles: production and development. In production profile, /WARModule/src/main/resources/prod/index.jsp should be assembled into views/ war directory. In development profile, /WARModule/src/main/resources/dev/index.jsp should be copied into views/ war directory.
For that, I am trying to make use of the maven-resources-plugin, which I am configuring in war pom.xml.
<properties>
<prodResourcesDir>${basedir}/src/main/resources/prod</prodResourcesDir>
<devResourcesDir>${basedir}/src/main/resources/dev</devResourcesDir>
<viewsDir>${basedir}/target/WARModule/views</viewsDir>
</properties>
<profiles>
<profile>
<id>development</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>copy_development_index.jsp</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${viewsDir}</outputDirectory>
<resources>
<resource>
<directory>${devResourcesDir}</directory>
<filtering>true</filtering>
<includes>
<include>index.jsp</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>copy_production_index.jsp</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${viewsDir}</outputDirectory>
<resources>
<resource>
<directory>${prodResourcesDir}</directory>
<includes>
<include>index.jsp</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
As you can see above, I am creating two profiles (production and development) and configuring the resources plugin under each of them.
When I run mvn install -P any_of_the_profiles, index.jsp is not copied to the specified destination. Instead, I get the original version. Can anyone help me sort this out?
Below the log trace:
$ mvn -P production install
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] ParentProject
[INFO] WebModule Maven Webapp
[INFO] EARModule
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ParentProject 0.0.2-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) # ParentProject ---
[INFO] Installing D:\workspace\mvn_projects\ParentProject\pom.xml to C:\Users\a048148\.m2\repository\my\org\ParentProject\0.0.2-SNAPSHOT\ParentProject-0.0.2-SNAPSHOT.pom
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building WebModule Maven Webapp 0.0.2-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) # WebModule ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 10 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) # WebModule ---
[INFO] Changes detected - recompiling the module!
[INFO] Compilation messages...
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) # WebModule ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\workspace\mvn_projects\ParentProject\WebModule\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) # WebModule ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) # WebModule ---
[INFO] No tests to run.
[INFO]
[INFO] --- maven-resources-plugin:2.6:copy-resources (copy_index.jsp) # WebModule ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-war-plugin:2.2:war (default-war) # WebModule ---
[INFO] Packaging webapp
[INFO] Assembling webapp [WebModule] in [D:\workspace\mvn_projects\ParentProject\WebModule\target\WebModule]
[INFO] Processing war project
[INFO] Copying webapp resources [D:\workspace\mvn_projects\ParentProject\WebModule\src\main\webapp]
[INFO] Webapp assembled in [3122 msecs]
[INFO] Building war: D:\workspace\mvn_projects\ParentProject\WebModule\target\WebModule.war
[INFO] WEB-INF\web.xml already added, skipping
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) # WebModule ---
[INFO] Installing D:\workspace\mvn_projects\ParentProject\WebModule\target\WebModule.war to C:\Users\a048148\.m2\repository\my\org\WebModule\0.0.2-SNAPSHOT\WebModule-0.0.2-SNAPSHOT.war
[INFO] Installing D:\workspace\mvn_projects\ParentProject\WebModule\pom.xml to C:\Users\a048148\.m2\repository\my\org\WebModule\0.0.2-SNAPSHOT\WebModule-0.0.2-SNAPSHOT.pom
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building EARModule 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-ear-plugin:2.8:generate-application-xml (default-generate-application-xml) # EARModule ---
[INFO] Generating application.xml
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) # EARModule ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-ear-plugin:2.8:ear (default-ear) # EARModule ---
[INFO] Copying artifact [war:com.bbh:WebModule:0.0.1-SNAPSHOT] to [WebModule-0.0.1-SNAPSHOT.war]
[INFO] Could not find manifest file: D:\workspace\mvn_projects\ParentProject\EARModule\target\ParentProject\META-INF\MANIFEST.MF - Generating one
[INFO] Building jar: D:\workspace\mvn_projects\ParentProject\EARModule\target\ParentProject.ear
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) # EARModule ---
[INFO] Installing D:\workspace\mvn_projects\ParentProject\EARModule\target\ParentProject.ear to C:\Users\a048148\.m2\repository\my\org\EARModule\0.0.1-SNAPSHOT\EARModule-0.0.1-SNAPSHOT.ear
[INFO] Installing D:\workspace\mvn_projects\ParentProject\EARModule\pom.xml to C:\Users\a048148\.m2\repository\my\org\EARModule\0.0.1-SNAPSHOT\EARModule-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] ParentProject .......................................... SUCCESS [ 0.229 s]
[INFO] WebModule Maven Webapp ................................ SUCCESS [ 19.470 s]
[INFO] EARModule ............................................. SUCCESS [ 3.049 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 22.892 s
[INFO] Finished at: 2016-12-12T15:18:14+01:00
[INFO] Final Memory: 39M/247M
[INFO] ------------------------------------------------------------------------

Answer 1

I ended up figuring out that maven-resources-plugin works just fine for resources, not web resources (JSP).
So I switched my approach to the maven-war-plugin filtering feature and specifying the destination path. Thus, the profiles section in my web pom.xml ended up like this:
<profiles>
<profile>
<id>development</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<webResources>
<resource>
<directory>${devResourcesDir}</directory>
<filtering>true</filtering>
<targetPath>views</targetPath> <!-- target/WebModule/ subdirectory -->
<include>index.jsp</include>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<webResources>
<resource>
<directory>${prodResourcesDir}</directory>
<filtering>true</filtering>
<targetPath>views</targetPath> <!-- target/WebModule/ subdirectory -->
<include>index.jsp</include>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
This tells maven-war-plugin to move index.jsp from the specified resources directory to the target/WebModule/views directory. It is all done by the war plugin just before packaging the war, so there is no need to specify the life cycle phase.