Changing a .content.xml file locally is not reflecting in CRX after maven build

If .content.xml file is changed locally and changes are not reflecting in crx then check maven-resources-plugin.

Add below plugin in pom.xml of UI module.(aem-sample/aem-content-ui/pom.xml).

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-resources-plugin</artifactId>

<executions>

<execution>

<id>copy-content-resources</id>

<phase>process-resources</phase>

<goals>

<goal>copy-resources</goal>

</goals>

<configuration>

<outputDirectory>${project.build.directory}/vault-work</outputDirectory>

<resources>

<resource>

<directory>${basedir}/src/main/content</directory>

<filtering>true</filtering>

<excludes>

<exclude>**/.svn</exclude>

<exclude>**/.vlt</exclude>

<exclude>**/.vltignore</exclude>

<exclude>**/.DS_Store</exclude>

<exclude>/etc/designs/${project.parent.artifactId}/jcr:content(/.*)?</exclude>

</excludes>

</resource>

</resources>

</configuration>

</execution>

</plugin>

For maven-resources-plugin check that its copying your .content.xml to target folder and for content-package-maven-plugin check that correct filter values are set.

We can also verify by extracting the generated package and check if it has the changes or not or look at a vault-work directory in target and get to the directory in which you have changed the .content.xml, verify if it has changes. If your changes are there in vault-works then the maven-resources-plugin is working absolutely fine and the issue may be with the content-package-maven-plugin.