Sling Models are not working if Model classes are inside subfolders.

With Archtype 20, Maven classes are not getting resolved as type inside model’s subfolders if Sling-Model-Packages: com.myapp.core.models is defined in bnd-maven-plugin e.g. com.myapp.core.models.sub

<plugin>
                <groupId>biz.aQute.bnd</groupId>
                <artifactId>bnd-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>bnd-process</id>
                        <goals>
                            <goal>bnd-process</goal>
                        </goals>
                        <configuration>
                            <bnd><![CDATA[
Bundle-Category: MyApp
-exportcontents: ${packages;VERSIONED}
Sling-Model-Packages: com.myapp.core.models
-snapshot: ${tstamp;yyyyMMddHHmmssSSS}
Bundle-DocURL:
                                ]]></bnd>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

We get following error, if we use create model inside subfolder: com.myapp.core.models.sub.HelloWorldModel cannot be resolved to a type

[arunpatidar02]

I dig more into the issue and found that the packages/sub packages apart from default packages are not getting added in Export-Package header in MANIFEST.MF file. All the new packages are getting added in Private-Package header, because of missing package-info.java file in sub/new packages.

To resolve above issue either you can create package-info.java with with version annotation or update core pom to remove VERSIONED filter from -exportcontents.

<plugin>
                <groupId>biz.aQute.bnd</groupId>
                <artifactId>bnd-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <id>bnd-process</id>
                        <goals>
                            <goal>bnd-process</goal>
                        </goals>
                        <configuration>
                            <bnd><![CDATA[
Bundle-Category: MyApp
-exportcontents: ${packages;}
Sling-Model-Packages: com.myapp.core.models
-snapshot: ${tstamp;yyyyMMddHHmmssSSS}
Bundle-DocURL:
                                ]]></bnd>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

[Jdruwe]

I’ve added the package-info in my sub folder and it got resolved.