Invalid sub-module reference from module module3.submodule32 to module module3.submodule31

[aribeth007]

I was testing a bit spring modulith 1.3.0-M2 and created a project with the following structure

commons
module1
module2
module3

submodule31
submodule32

submodule32 is using Module31Interface like in the example below:
https://github.com/aribeth007/modulith-example/blob/main/src/main/java/com/example/modulith/module3/submodule32/internal/Module32Service.java#L12

submodule32 also has the allowed dependencies specified: https://github.com/aribeth007/modulith-example/blob/main/src/main/java/com/example/modulith/module3/submodule32/package-info.java

While running the Modularity Validation Test I am getting the following exception:
`
org.springframework.modulith.core.Violations: - Invalid sub-module reference from module 'module3.submodule32' to module 'module3.submodule31' (via c.e.m.m.s.internal.Module32Service -> c.e.m.m.s.Module31Interface)!

at org.springframework.modulith.core.Violations.and(Violations.java:119)
at java.base/java.util.stream.ReduceOps$1ReducingSink.accept(ReduceOps.java:80)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.HashMap$ValueSpliterator.forEachRemaining(HashMap.java:1787)
at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:657)
at org.springframework.modulith.core.ApplicationModules.detectViolations(ApplicationModules.java:475)
at org.springframework.modulith.core.ApplicationModules.verify(ApplicationModules.java:440)
at com.example.modulith.ModularityTest.verifiesModularStructure(ModularityTest.java:12)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)

`

I was expecting the modularity test to pass. However I am not sure if I am doing anything wrong.

Thank you!

[odrotbohm]

That's useful feedback and indeed a bug. Investigating.

[odrotbohm]

This is fixed in the latest snapshots. We missed checking for sibling relationships, but that's in place now.