[Question] UnsupportedConfigurationException -> Unable to load default layout algorithm org.eclipse.elk.layered for unconfigured node Root Node

[PavelTurk]

I try to use ELK with PlantUML. The problem is that I come to this point

elk/plugins/org.eclipse.elk.core/src/org/eclipse/elk/core/data/LayoutAlgorithmResolver.java

Line 61 in c213da5

throw new UnsupportedConfigurationException(message.toString());

Could anyone say how to fix it?

[ahus1]

I came across a similar (same)? problem when trying to make ELK and PlantUML work for the IntelliJ plugin. I found that the service loader mechanism assumes that the classes are available in the root classloader.

I provided a PR that should fix this (#1109). To try out the fix, I pushed a demo repo https://github.com/ahus1/elk-patched-for-plantuml?tab=readme-ov-file that allows you to build a patched JAR with all dependencies.

[PavelTurk]

@ahus1 Yes, your solution solved the problem. Thank you very much.

[ahus1]

Great to hear this approach works for you. Let's hope for a release in 2025 that includes this.