LoadProctor.java

import com.indeed.proctor.common.*;
import com.indeed.proctor.common.model.*;
import javax.el.FunctionMapper;

...

  public Proctor loadProctor(final String definitionFile) throws MissingTestMatrixException, IOException {
    final String specPath = "/org/example/proctor/ExampleGroups.json";
    final ProctorSpecification spec = ProctorUtils.readSpecification(getClass().getResourceAsStream(specPath));
    final FunctionMapper functionMapper = RuleEvaluator.defaultFunctionMapperBuilder().build();
    final FileProctorLoader loader = new FileProctorLoader(spec, definitionFile, functionMapper);
    final Proctor proctor = loader.doLoad();
    return proctor;
  }
  
...