Program: 144302
Project: 144302
Buggy source:
/** 
 * Builds interactive workload schema in database
 * @return true if building the schema succeeded
 */
private boolean buildSchema(WorkLoadSchema s){
  logger.info("String_Node_Str");
  JanusGraphManagement management;
  Set<String> vTypes=s.getVertexTypes().keySet();
  for (  String v : vTypes) {
    management=graph.openManagement();
    if (!graph.containsVertexLabel(v)) {
      management.makeVertexLabel(v).make();
      management.commit();
    }
  }
  logger.info("String_Node_Str");
  for (  String e : s.getEdgeTypes()) {
    management=graph.openManagement();
    if (!graph.containsRelationType(e)) {
      management.makeEdgeLabel(e).multiplicity(Multiplicity.SIMPLE).make();
      management.commit();
    }
  }
  logger.info("String_Node_Str");
  Set<Class<?>> allowed=new HashSet<>(Arrays.asList(VALID_CLASSES));
  for (  String v : s.getVertexProperties().keySet()) {
    for (    String p : s.getVertexProperties().get(v)) {
      String janusPropertyKey=v + "String_Node_Str" + p;
      logger.info("String_Node_Str" + janusPropertyKey);
      if (!graph.containsRelationType(p)) {
        management=graph.openManagement();
        Class<?> clazz=s.getVPropertyClass(v,p);
        Cardinality c=(clazz.getSimpleName().equals("String_Node_Str") ? Cardinality.LIST : Cardinality.SINGLE);
        if (clazz.equals(Arrays.class))         clazz=String.class;
        PropertyKey pk;
        if (clazz.equals(Date.class))         pk=management.makePropertyKey(janusPropertyKey).dataType(Long.class).cardinality(c).make();
 else         pk=management.makePropertyKey(janusPropertyKey).dataType(clazz).cardinality(c).make();
        if (!allowed.contains(clazz)) {
          logger.error("String_Node_Str",clazz.getSimpleName());
          continue;
        }
        if (p.compareTo("String_Node_Str") == 0 || p.compareTo("String_Node_Str") == 0) {
          vertexIndexes.put(pk,"String_Node_Str" + janusPropertyKey);
        }
        management.commit();
      }
    }
  }
  for (  String e : s.getEdgeProperties().keySet()) {
    for (    String p : s.getEdgeProperties().get(e)) {
      String janusPropertyKey=e + "String_Node_Str" + p;
      if (!graph.containsRelationType(p)) {
        management=graph.openManagement();
        Class<?> clazz=s.getEPropertyClass(e,p);
        if (clazz.equals(Arrays.class))         clazz=String.class;
        Cardinality c=(clazz.isArray() ? Cardinality.LIST : Cardinality.SINGLE);
        PropertyKey pk;
        if (clazz.equals(Date.class))         pk=management.makePropertyKey(janusPropertyKey).dataType(Long.class).cardinality(c).make();
 else         pk=management.makePropertyKey(janusPropertyKey).dataType(clazz).cardinality(c).make();
        if (!allowed.contains(clazz)) {
          logger.error("String_Node_Str",clazz.getSimpleName());
          continue;
        }
        if (p.compareTo("String_Node_Str") == 0 || p.compareTo("String_Node_Str") == 0) {
          management.buildIndex("String_Node_Str" + janusPropertyKey,Vertex.class).addKey(pk).buildCompositeIndex();
        }
        management.commit();
      }
    }
  }
  logger.info("String_Node_Str");
  return true;
}

Fixed version (ground truth):
/** 
 * Builds interactive workload schema in database
 * @return true if building the schema succeeded
 */
private boolean buildSchema(WorkLoadSchema s){
  logger.info("String_Node_Str");
  JanusGraphManagement management;
  Set<String> vTypes=s.getVertexTypes().keySet();
  for (  String v : vTypes) {
    management=graph.openManagement();
    if (!graph.containsVertexLabel(v)) {
      management.makeVertexLabel(v).make();
      management.commit();
    }
  }
  logger.info("String_Node_Str");
  for (  String e : s.getEdgeTypes()) {
    management=graph.openManagement();
    if (!graph.containsRelationType(e)) {
      management.makeEdgeLabel(e).multiplicity(Multiplicity.SIMPLE).make();
      management.commit();
    }
  }
  logger.info("String_Node_Str");
  Set<Class<?>> allowed=new HashSet<>(Arrays.asList(VALID_CLASSES));
  for (  String v : s.getVertexProperties().keySet()) {
    for (    String p : s.getVertexProperties().get(v)) {
      String janusPropertyKey=v + "String_Node_Str" + p;
      logger.info("String_Node_Str" + janusPropertyKey);
      if (!graph.containsRelationType(p)) {
        management=graph.openManagement();
        Class<?> clazz=s.getVPropertyClass(v,p);
        Cardinality c=(clazz.getSimpleName().equals("String_Node_Str") ? Cardinality.LIST : Cardinality.SINGLE);
        if (clazz.equals(Arrays.class))         clazz=String.class;
        PropertyKey pk;
        if (clazz.equals(Date.class))         pk=management.makePropertyKey(janusPropertyKey).dataType(Long.class).cardinality(c).make();
 else         pk=management.makePropertyKey(janusPropertyKey).dataType(clazz).cardinality(c).make();
        if (!allowed.contains(clazz)) {
          logger.error("String_Node_Str",clazz.getSimpleName());
          continue;
        }
        if (p.compareTo("String_Node_Str") == 0 || p.compareTo("String_Node_Str") == 0) {
          vertexIndexes.add(janusPropertyKey);
        }
        management.commit();
      }
    }
  }
  for (  String e : s.getEdgeProperties().keySet()) {
    for (    String p : s.getEdgeProperties().get(e)) {
      String janusPropertyKey=e + "String_Node_Str" + p;
      if (!graph.containsRelationType(p)) {
        management=graph.openManagement();
        Class<?> clazz=s.getEPropertyClass(e,p);
        if (clazz.equals(Arrays.class))         clazz=String.class;
        Cardinality c=(clazz.isArray() ? Cardinality.LIST : Cardinality.SINGLE);
        PropertyKey pk;
        if (clazz.equals(Date.class))         pk=management.makePropertyKey(janusPropertyKey).dataType(Long.class).cardinality(c).make();
 else         pk=management.makePropertyKey(janusPropertyKey).dataType(clazz).cardinality(c).make();
        if (!allowed.contains(clazz)) {
          logger.error("String_Node_Str",clazz.getSimpleName());
          continue;
        }
        if (p.compareTo("String_Node_Str") == 0 || p.compareTo("String_Node_Str") == 0) {
          management.buildIndex("String_Node_Str" + janusPropertyKey,Vertex.class).addKey(pk).buildCompositeIndex();
        }
        management.commit();
      }
    }
  }
  logger.info("String_Node_Str");
  return true;
}