Mockito is currently self-attaching to enable the inline-mock-maker. This will no longer work in future releases of the JDK. Please add Mockito as an agent to your build what is described in Mockito's documentation: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#0.3 WARNING: A Java agent has been loaded dynamically (/tmp/r/net/bytebuddy/byte-buddy-agent/1.15.3/byte-buddy-agent-1.15.3.jar) WARNING: If a serviceability tool is in use, please run with -XX:+EnableDynamicAgentLoading to hide this warning WARNING: If a serviceability tool is not in use, please run with -Djdk.instrument.traceUsage for more information WARNING: Dynamic loading of agents will be disallowed by default in a future release Mockito is currently self-attaching to enable the inline-mock-maker. This will no longer work in future releases of the JDK. Please add Mockito as an agent to your build what is described in Mockito's documentation: https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#0.3 12:19:27,776 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 12:19:27,780 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:27,792 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library cleaned successfully 12:19:27,793 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer stopped 12:19:27,849 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 12:19:27,849 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:27,850 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library cleaned successfully 12:19:27,850 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer stopped 12:19:29,122 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 12:19:29,122 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:29,131 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 12:19:29,131 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 12:19:29,227 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 12:19:29,228 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:29,230 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 12:19:29,230 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 12:19:29,310 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 12:19:29,310 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:29,312 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 12:19:29,312 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled 12:19:29,384 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library writer starting update to 1 12:19:29,385 PM [main] [DEBUG] YangLibraryWriter - Allocated new transaction chain 12:19:29,386 PM [main] [DEBUG] YangLibraryWriter - ietf-yang-library updated successfully 12:19:29,386 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state enabled 12:19:29,397 PM [main] [WARN] YangLibraryWriter - ietf-yang-library not present in context, skipping update 12:19:29,397 PM [main] [INFO] YangLibraryWriter - ietf-yang-library writer started with modules-state disabled