Using profiles in Netbeans and Maven multimodule project to build for Windows and Linux - maven

Question

In a NetBeans "workspace" for Java there are several projects (all dirs are on same level):
Main
MainExecutable (contains the main(String[] args) method for debugging)
JNILibrary (only available for Linux)
10 further projects
And I am trying to make it debuggable on Windows by providing "stubs" (just some empty methods) source code for Windows through the profile in JNILibrary\pom.xml:
<groupId>com.example</groupId>
<artifactId>jnilibrary</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>com.example.test</groupId>
<artifactId>Main</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../Main/pom.xml</relativePath>
</parent>
<build>
<sourceDirectory>${src.dir}</sourceDirectory>
</build>
<profiles>
<profile>
<id>windows</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<properties>
<src.dir>src/windows/java</src.dir>
</properties>
</profile>
<profile>
<id>linux</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<src.dir>src/linux/java</src.dir>
</properties>
</profile>
</profiles>
After that I am able to select Set Configuration -> linux or Set Configuration -> Windows, when I right-click on the JNILibrary project in NetBeans.
Unfortunately, when I try to debug the MainExecutable project - it still (builds and) starts the Linux version - and fails to start on my Windows PC.
Could someone please point into right direction on how to solve my problem?
Here is an excerpt from Main\pom.xml:
<groupId>com.example.test</groupId>
<artifactId>Main</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>Main</name>
<modules>
<module>../MainExecutable</module>
<module>../jnilibrary</module>
<module>../10/further/modules</module>
</modules>
And here an excerpt from MainExecutable\pom.xml:
<parent>
<groupId>com.example.test</groupId>
<artifactId>Main</artifactId>
<relativePath>../Main</relativePath>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>MainExecutable</artifactId>
<packaging>jar</packaging>

Answer 1

As you wrote, move the 2 profiles to Main/pom.xml and add to both of them new property jnilibrary.src.dir
<profiles>
<profile>
<id>windows</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<properties>
<jnilibrary.src.dir>src/windows/java</src.dir>
</properties>
</profile>
<profile>
<id>linux</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<jnilibrary.src.dir>src/linux/java</src.dir>
</properties>
</profile>
</profiles>
and use that property in JNILibrary\pom.xml
<build>
<sourceDirectory>${jnilibrary.src.dir}</sourceDirectory>
</build>

Answer 2

You can use the OS Name to activate the profile:
<build>
<sourceDirectory>${src.dir}</sourceDirectory>
</build>
<profiles>
<profile>
<id>windows</id>
<activation>
<os>
<name>Windows</name>
</os>
</activation>
<properties>
<src.dir>src/windows/java</src.dir>
</properties>
</profile>
<profile>
<id>linux</id>
<activation>
<os>
<name>Linux</name>
</os>
</activation>
<properties>
<src.dir>src/linux/java</src.dir>
</properties>
</profile>
</profiles>