Wildfly-Swarm enable debug - wildfly-swarm

Question

I've managed to convert my "war" application to a hollow jar.
My biggest issue is that even after following the documentation, still cannot enable debug mode (my desired port is 8784)
I am pretty sure that I am missing something but ... what?
<plugin>
<groupId>org.wildfly.swarm</groupId>
<artifactId>wildfly-swarm-plugin</artifactId>
<version>${wildfly-swarm.version}</version>
<executions>
<execution>
<id>package</id>
<goals>
<goal>package</goal>
</goals>
<configuration>
<hollow>true</hollow>
<properties>
<swarm.debug.port>8784</swarm.debug.port>
<debug.port>8784</debug.port>
<swarm.debug.bootstrap>true</swarm.debug.bootstrap>
<java.net.preferIPv4Stack>true</java.net.preferIPv4Stack>
</properties>
</configuration>
</execution>
</executions>
</plugin>

Answer 1

The swarm.sebug.port property is only relevant when starting the application via the Swarm Maven plugin, or when using the Swarm Arquillian adapter. When starting the application using java -jar myapp-swarm.jar, you need to use the standard Java way of enabling remote debugging, i.e. something like java -Xdebug -agentlib:jdwp=transport=dt_socket,address=8784,server=y,suspend=n -jar myapp-swarm.jar.

Answer 2

You may want to look into:
https://issues.jboss.org/browse/THORN-1321
or
https://intellij-support.jetbrains.com/hc/en-us/community/posts/206848015-Breakpoints-not-working-when-debugging-simple-Java-EE-app-on-wildfly?page=1#community_comment_360000176459
The first link is the relevant one. I am including the second one just for further information if you are using IntelliJ for IDE.
Briefly, here is my pom configuration:
<plugin>
<groupId>org.wildfly.swarm</groupId>
<artifactId>wildfly-swarm-plugin</artifactId>
<version>${version.wildfly.swarm}</version>
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
<configuration>
<debugPort>5005</debugPort>
<properties>
<swarm.debug.port>5005</swarm.debug.port>
</properties>
</configuration>
</plugin>
After starting the application with the mvn swarm plugin, I am connecting with a remote debugger.
Good luck!
Edit (2019.05.31):
My current setup for debugging in the pom.xml is the following:
<plugin>
<groupId>org.wildfly.swarm</groupId>
<artifactId>wildfly-swarm-plugin</artifactId>
<version>${version.wildfly.swarm}</version>
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
<configuration>
<jvmArguments>
<jvmArgument>-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005</jvmArgument>
</jvmArguments>
</configuration>
</plugin>