There are occurrences in the code introduced an explicit dependency on nio2.jgit implementation. As a result, the nio2.jgit becomes a mandatory component for any Business Central to be able to boot up and run properly even if it can be replaced with other implementation, such as Business Central Monitoring.

The following line of code with hard coded dependency blocks BC/BC-M booting up if nio2.jgit is not configured.
https://github.com/kiegroup/appformer/blob/23d9b09b2729659a9e0fecb2c1d927af3cf80ae8/uberfire-backend/uberfire-backend-cdi/src/main/java/org/uberfire/backend/server/cdi/SystemConfigProducer.java#L410

The following lines of code with hard coded dependency breaks the functionalities of BC/BC-M if nio2.jgit is not configured
https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/uberfire-showcase/uberfire-webapp/src/main/java/org/uberfire/backend/server/impl/ExperimentalEditorServiceImpl.java#L142
https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/uberfire-experimental/uberfire-experimental-backend/src/main/java/org/uberfire/experimental/service/storage/impl/AbstractExperimentalFeaturesStorage.java#L194

https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/uberfire-preferences/uberfire-preferences-backend/src/main/java/org/uberfire/preferences/backend/PreferenceStorageImpl.java#L97

https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/dashbuilder/dashbuilder-client/dashbuilder-cms-client/src/main/java/org/dashbuilder/client/cms/screen/transfer/DataTransferView.java#L96

https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/dashbuilder/dashbuilder-backend/dashbuilder-services/src/main/java/org/dashbuilder/transfer/DataTransferServicesImpl.java#L136
https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/dashbuilder/dashbuilder-backend/dashbuilder-services/src/main/java/org/dashbuilder/transfer/DataTransferServicesImpl.java#L153
https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/dashbuilder/dashbuilder-backend/dashbuilder-services/src/main/java/org/dashbuilder/transfer/DataTransferServicesImpl.java#L216
https://github.com/kiegroup/appformer/blob/da01451141a32303470aa78a23c221d64569b59f/dashbuilder/dashbuilder-backend/dashbuilder-services/src/main/java/org/dashbuilder/transfer/DataTransferServicesImpl.java#L312

These classes have explicit dependencies on JGit implementation which break the webapp startup process.
https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/dashbuilder/dashbuilder-backend/dashbuilder-services/src/main/java/org/dashbuilder/migration/DashbuilderDataMigration.java#L222

https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/uberfire-structure/uberfire-structure-backend/src/main/java/org/guvnor/structure/backend/organizationalunit/OrganizationalUnitServiceImpl.java#L579

These classes have explicit dependencies on JGit implementation which may break the functionality if jgit is unplugged.
https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/uberfire-project/uberfire-project-backend/src/main/java/org/guvnor/common/services/project/backend/server/utils/PathUtil.java#L69

https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/uberfire-project/uberfire-project-backend/src/main/java/org/guvnor/common/services/project/backend/server/WorkspaceProjectMigrationServiceImpl.java#L160

https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/uberfire-structure/uberfire-structure-backend/src/main/java/org/guvnor/structure/backend/FileSystemDeleteWorker.java#L162

https://github.com/kiegroup/appformer/blob/3a6161f007520c10f99db8af2a03f480e261a81e/uberfire-structure/uberfire-structure-backend/src/main/java/org/guvnor/structure/backend/repositories/ChangeRequestServiceImpl.java#L1322

The goal is to eliminate explicit dependencies which allows nio2.jgit to be plugged in as the Default FileSystemProvider or replaced by other FileSystem provider implementation, i.e. nio2.k8s.