Java – filter directories in Maven war plugin

This is a follow-up to my question yesterday conditionally exclude some resources in Maven from war I can rearrange the development and production war, but the filter copies the directory attribute into the war, although it is excluded according to the documentation I can use the packaging excludes option, but I want to know why exclusion is not possible Thank you for your explanation

<plugin>
    <artifactId>maven-war-plugin</artifactId>
    <configuration>
        <classifier>dev</classifier>
        <webappDirectory>${project.build.directory}/${project.build.finalName}-dev</webappDirectory>
        <filters>
            <filter>${project.basedir}/configurations/properties/config_dev.prop</filter>
        </filters>
        <webResources>
            <resource>
                <directory>configurations</directory>
                <filtering>true</filtering>
                <targetPath>WEB-INF/classes</targetPath>
                <excludes>
                    <exclude>**/properties</exclude>
                </excludes>
            </resource>
        </webResources>
    </configuration>
    <executions>
        <execution>
            <id>package-prod</id>
            <phase>package</phase>
            <configuration>
                <classifier>prod</classifier>
                <webappDirectory>${project.build.directory}/${project.build.finalName}-prod</webappDirectory>
                <packagingExcludes>WEB-INF/classes/*.jks,WEB-INF/classes/acquirer.properties</packagingExcludes>
                <filters>
                    <filter>${project.basedir}/configurations/properties/config_prod.prop</filter>
                </filters>
                <webResources>
                    <resource>
                        <directory>configurations</directory>
                        <filtering>true</filtering>
                        <targetPath>WEB-INF/classes</targetPath>
                        <excludes>
                            <exclude>**/properties</exclude>
                        </excludes>
                    </resource>
                </webResources>
            </configuration>
            <goals>
                <goal>war</goal>
            </goals>
        </execution>
    </executions>
</plugin>

Solution

The exclusion of resources is based on files, that is, they ignore folders This is because web resources are potentially filtered

Therefore, the excluded globs apply to all files in the directory and exclude any files that match the excluded globs

However, you have excluded only one directory

Change to * * / properties / * or * * / properties / * *, it will work