mapPackage fail to load class from jar (by maven pacakge which with some module)

[em14Vito]

Hello. here is my config:

morphia: 1.4.0.
bson: 3.4.0.
spring boot: 1.5.16 
mongodb: 4.0
maven: 3.2.5

I use maven to package my project as a jar file( use maven-plugin:spring-boot-maven-plugin). project struct likes:
-parent(manage dependecy only.)
--web(contain spring-web)
---repository(contain @Entity.class and @Embeded.class)
---service
when I start project by java -jar project.jar. Morphia can not load my class. (but In IntelliJ IDEA work well).

---

When I debug I found that method

ReflectionUtils.getFromJARFile(final ClassLoader loader, final String jar, final String packageName, final boolean mapSubPackages)

can not load @Entity.class because It did not parse repository.jar.

[evanchooly]

I'm not entirely sure I understand your statement there. Are you seeing a stacktrace at all or is it just not finding your entity type?

[em14Vito]

@evanchooly Thanks for replay. The @entity are some class that mapping to mongodb by morphia. It just not found any class which annotation like Entity.class or Embedded.class .

[em14Vito]

I'm not entirely sure I understand your statement there. Are you seeing a stacktrace at all or is it just not finding your entity type?

Actually package scanner in morphia didn't scan the sub module. I think maybe it caused by the method getFromDirectory(final ClassLoader loader, final File directory, final String packageName, final boolean mapSubPackages) .

[em14Vito]

I found a solution for this case from online. It can use spring ClassPathScanningCandidateComponentProvider to replace mapPackage(). like:

    ClassPathScanningCandidateComponentProvider entityScanner = new ClassPathScanningCandidateComponentProvider(
        true);
    entityScanner.addIncludeFilter(new AnnotationTypeFilter(Entity.class));
    entityScanner.addIncludeFilter(new AnnotationTypeFilter(Embedded.class));
    for (BeanDefinition candidate : entityScanner.findCandidateComponents(
        "be scanned package")) {
      try {
        morphia.map(Class.forName(candidate.getBeanClassName()));
      } catch (ClassNotFoundException e) {
        e.printStackTrace();
      }
    }
```

[evanchooly]

I don't understand what you mean by "didn't scaner sub module but project which run with intellij idea". Could you post the actual stack trace?

[em14Vito]

I don't understand what you mean by "didn't scaner sub module but project which run with intellij idea". Could you post the actual stack trace?

Hi evanchooly, I mean that, when I use morphia.mapPackage(), it didn't work when I start project by command java -jar project.jar, the project.jar was package by spring-boot-maven-plugin . I will show the error project if you need. thx : )

[evanchooly]

That'd be great. I can build/run it locally with a master build and see what's going on.

[em14Vito]

That'd be great. I can build/run it locally with a master build and see what's going on.

Hi @evanchooly . I put my demo into github. If you any puzzled, please feel free to contact me. Thx. 😄

[evanchooly]

Great, thanks. I'll see what I can find out. I'm heading to DevNexus in the next few days so it might be a bit before I have the bandwidth but I'll do my best.