Exception in thread "main" org.bjv2.util.ServiceConfigurationError: Can't locate a SPI for interface org.bjv2.gql.PropertyFetcher for proptery 'feature' on interface org.bjv2.seq.FeatureRelation
	at org.bjv2.gql.Follows.followProperty(Follows.java:117)
	at org.bjv2.gql.Follows.followProperties(Follows.java:207)
	at org.bjv2.gql.Filters.on(Filters.java:177)
	at org.bjv2.integrator.Query.build(Query.java:94)
	at org.bjv2.integrator.impl.AbstractIntegrator.processMapping(AbstractIntegrator.java:311)
	at org.bjv2.integrator.impl.AbstractIntegrator.access$000(AbstractIntegrator.java:22)
	at org.bjv2.integrator.impl.AbstractIntegrator$SingletonInvocationHandler.invoke(AbstractIntegrator.java:540)
	at org.bjv2.integrator.impl.AbstractIntegrator$CachingInvocationHandler.invoke(AbstractIntegrator.java:494)
	at $Proxy9.getRelations(Unknown Source)
	at bio.FlyMineToBJv2.toString(FlyMineToBJv2.java:176)
	at bio.FlyMineToBJv2.main(FlyMineToBJv2.java:213)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)




@Identifier("urn:biojava.org:integratorContext/sequence:relations")
@Properties({@Property(property = "source",
              plan = MergeStrategy.FIRST_VALUE,
              identifier = "urn:biojava.org:integratorContext/sequence:features"),
            @Property(property = "type",
              plan = MergeStrategy.FIRST_VALUE)
    })
public interface FeatureRelation  {

  public Feature getSource();

  public String getType();
}





@PrimaryKey({"identifier"})
@Identifier("urn:biojava.org:integratorContext/sequence:features")
@Properties({@Property(property = "locators",
                       plan = MergeStrategy.MERGE,
                       query = "locators feature == this",
                       identifier = "urn:biojava.org:integratorContext/sequence:locators"),
             @Property(property = "relations",
                       plan = MergeStrategy.MERGE,
                       query = "relations feature == this",
                       identifier = "urn:biojava.org:integratorContext/sequence:relations"),
             @Property(property = "annotation",
                       plan = MergeStrategy.MERGE),
             @Property(property = "identifier",
                       plan = MergeStrategy.FIRST_VALUE),
             @Property(property = "type",
                       plan = MergeStrategy.FIRST_VALUE)
        })
public interface Feature
        extends Annotatable, Identifiable
{
  public FeatureType getType();

  public Set<Locator> getLocators();

  public Set<FeatureRelation> getRelations();
}