in maven-plugin-testing-harness/src/main/java/org/apache/maven/api/plugin/testing/stubs/RepositorySystemSupplier.java [545:551]
public final RemoteRepositoryFilterManager getRemoteRepositoryFilterManager() {
checkClosed();
if (remoteRepositoryFilterManager == null) {
remoteRepositoryFilterManager = createRemoteRepositoryFilterManager();
}
return remoteRepositoryFilterManager;
}