1*795d594fSAndroid Build Coastguard Worker# On-Device Refresh (odrefresh) 2*795d594fSAndroid Build Coastguard Worker 3*795d594fSAndroid Build Coastguard WorkerThis tool is part of the ART APEX and is used to refresh compilation artifacts following an 4*795d594fSAndroid Build Coastguard WorkerART APEX update. It provides two key features: 5*795d594fSAndroid Build Coastguard Worker 6*795d594fSAndroid Build Coastguard Worker* checking the freshness of compilation artifacts for boot class path extensions and system_server. 7*795d594fSAndroid Build Coastguard Worker* regenerating the compilation artifacts for boot class path extensions and system_server.