FailedConsole Output

Started calculate disk usage of build
Finished Calculation of disk usage of build in 0 seconds
Started calculate disk usage of workspace
Finished Calculation of disk usage of workspace in 0 seconds
[INFO] 
[INFO] --< org.eclipse.hawkbit:hawkbit-extension-artifact-repository-azure >---
[INFO] Building hawkBit :: Extensions :: Azure Block Storage Repository 0.3.0-SNAPSHOT [5/7]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ hawkbit-extension-artifact-repository-azure ---
[INFO] 
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-no-snapshots) @ hawkbit-extension-artifact-repository-azure ---
[INFO] Skipping Rule Enforcement.
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ hawkbit-extension-artifact-repository-azure ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 2 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ hawkbit-extension-artifact-repository-azure ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 4 source files to /home/hudson/genie.hawkbit/.jenkins/jobs/PR_Builder_Hawkbit-Extensions/workspace/hawkbit-extensions-azure/hawkbit-extension-artifact-repository-azure/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /home/hudson/genie.hawkbit/.jenkins/jobs/PR_Builder_Hawkbit-Extensions/workspace/hawkbit-extensions-azure/hawkbit-extension-artifact-repository-azure/src/main/java/org/eclipse/hawkbit/artifact/repository/AzureStorageRepository.java:[188,5] method does not override or implement a method from a supertype
[INFO] 1 error
[INFO] -------------------------------------------------------------