[BUG] Classes declared in spring xml configuration are not kept as dependencies

[afillatre]

Describe the bug
Classes configured in spring's bean.xml files are not kept as mandatory dependencies.

To Reproduce
Steps to reproduce the behavior:

1. Create a Spring project with XML configuration
2. Add rightful maven dependencies
3. Run depclean

Expected behavior
All spring beans declared in the XML configuration count as rightful dependencies

Additional context
It may be the same with Java Config textual declaration inside annotations (but I don't have a use case in mind ATM)

It fails too for XML namespace imports:

[ERROR] myTest  Time elapsed: 0 s  <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: 
Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/data/jpa]
Offending resource: class path resource [my-beans.xml]

[cesarsotovalero]

Hi @afillatre,
The only solution that comes to my mind for this issue is writing an XML parser in DepClean that inspect the XML files in src/main/resources to search for dependencies injected via XML annotations from the code.
WDYT?

[afillatre]

Yes, that's what I had in mind. This issue relates with #81 BTW