codeql with submodule will only return one module result?

[ox1234]

When i analyze a submodule maven project, codeql only return one of them result, is that a bug or need some configuration?
Here have many submodule

But here only return jeecms-common result:

[hvitved]

Are you sure that the source code in the other submodules are compiled as part of the build? CodeQL will only include .java files that are part of the build.

[ox1234]

Sorry, it's my fault, i forget to use mvn clean to delete previous compile result. Thanks for your help