Theme and jar file watching from other Maven modules does not work in Wildfly

[Artur-]

Description of the bug

If you deploy a multi module project to Wildfly, then editing the frontend or theme files in another module than the main module will not trigger a live reload or hot deploy.

The problem is that the file watcher is not triggered on file changes. This seems to be caused by gmethvin/directory-watcher#94

Expected behavior

It should work like in all other servers

Minimal reproducible example

Need to create one

Versions

• Vaadin / Flow version: 24.1.1

[Artur-]

Workaround is to add com.sun.nio.file as a dependency, e.g.

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <Dependencies>jdk.unsupported</Dependencies>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>

[AB-xdev]

Can confirm the problem for Vaadin 24, Wildfly 30 and Java 17 (Temurin)

[mcollovati]

It appears that adding the manifest entry to vaadin-dev-server works as well.