gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/util/star/StarGraphGraphSONSerializerV4.java [68:111]:
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    private void ser(final DirectionalStarGraph directionalStarGraph, final JsonGenerator jsonGenerator,
                     final SerializerProvider serializerProvider,
                     final TypeSerializer typeSerializer) throws IOException, JsonProcessingException {
        final StarGraph starGraph = directionalStarGraph.getStarGraphToSerialize();
        GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
        GraphSONUtil.writeWithType(GraphSONTokens.ID, starGraph.starVertex.id, jsonGenerator, serializerProvider, typeSerializer);
        jsonGenerator.writeStringField(GraphSONTokens.LABEL, starGraph.starVertex.label);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.IN);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.OUT);
        if (starGraph.starVertex.vertexProperties != null && !starGraph.starVertex.vertexProperties.isEmpty()) {
            jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
            GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
            final Set<String> keys = normalize ? new TreeSet<>(starGraph.starVertex.vertexProperties.keySet()) : starGraph.starVertex.vertexProperties.keySet();
            for (final String k : keys) {
                final List<VertexProperty> vp = starGraph.starVertex.vertexProperties.get(k);
                jsonGenerator.writeFieldName(k);
                GraphSONUtil.writeStartArray(k, jsonGenerator, typeSerializer);

                final List<VertexProperty> vertexProperties = normalize ?sort(vp, Comparators.PROPERTY_COMPARATOR) : vp;
                for (final VertexProperty property : vertexProperties) {
                    GraphSONUtil.writeStartObject(property, jsonGenerator, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.ID, property.id(), jsonGenerator, serializerProvider, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.VALUE, property.value(), jsonGenerator, serializerProvider, typeSerializer);

                    final Iterator<Property> metaProperties = normalize ?
                            IteratorUtils.list(property.properties(), Comparators.PROPERTY_COMPARATOR).iterator() : property.properties();
                    if (metaProperties.hasNext()) {
                        jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
                        GraphSONUtil.writeStartObject(metaProperties, jsonGenerator, typeSerializer);

                        while (metaProperties.hasNext()) {
                            final Property<Object> meta = metaProperties.next();
                            GraphSONUtil.writeWithType(meta.key(), meta.value(), jsonGenerator, serializerProvider, typeSerializer);
                        }
                        GraphSONUtil.writeEndObject(metaProperties, jsonGenerator, typeSerializer);
                    }
                    GraphSONUtil.writeEndObject(property, jsonGenerator, typeSerializer);
                }
                GraphSONUtil.writeEndArray(k, jsonGenerator, typeSerializer);
            }
            GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
        }
        GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
    }
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gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/util/star/StarGraphGraphSONSerializerV3.java [68:111]:
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    private void ser(final DirectionalStarGraph directionalStarGraph, final JsonGenerator jsonGenerator,
                     final SerializerProvider serializerProvider,
                     final TypeSerializer typeSerializer) throws IOException, JsonProcessingException {
        final StarGraph starGraph = directionalStarGraph.getStarGraphToSerialize();
        GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
        GraphSONUtil.writeWithType(GraphSONTokens.ID, starGraph.starVertex.id, jsonGenerator, serializerProvider, typeSerializer);
        jsonGenerator.writeStringField(GraphSONTokens.LABEL, starGraph.starVertex.label);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.IN);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.OUT);
        if (starGraph.starVertex.vertexProperties != null && !starGraph.starVertex.vertexProperties.isEmpty()) {
            jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
            GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
            final Set<String> keys = normalize ? new TreeSet<>(starGraph.starVertex.vertexProperties.keySet()) : starGraph.starVertex.vertexProperties.keySet();
            for (final String k : keys) {
                final List<VertexProperty> vp = starGraph.starVertex.vertexProperties.get(k);
                jsonGenerator.writeFieldName(k);
                GraphSONUtil.writeStartArray(k, jsonGenerator, typeSerializer);

                final List<VertexProperty> vertexProperties = normalize ?sort(vp, Comparators.PROPERTY_COMPARATOR) : vp;
                for (final VertexProperty property : vertexProperties) {
                    GraphSONUtil.writeStartObject(property, jsonGenerator, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.ID, property.id(), jsonGenerator, serializerProvider, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.VALUE, property.value(), jsonGenerator, serializerProvider, typeSerializer);

                    final Iterator<Property> metaProperties = normalize ?
                            IteratorUtils.list(property.properties(), Comparators.PROPERTY_COMPARATOR).iterator() : property.properties();
                    if (metaProperties.hasNext()) {
                        jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
                        GraphSONUtil.writeStartObject(metaProperties, jsonGenerator, typeSerializer);

                        while (metaProperties.hasNext()) {
                            final Property<Object> meta = metaProperties.next();
                            GraphSONUtil.writeWithType(meta.key(), meta.value(), jsonGenerator, serializerProvider, typeSerializer);
                        }
                        GraphSONUtil.writeEndObject(metaProperties, jsonGenerator, typeSerializer);
                    }
                    GraphSONUtil.writeEndObject(property, jsonGenerator, typeSerializer);
                }
                GraphSONUtil.writeEndArray(k, jsonGenerator, typeSerializer);
            }
            GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
        }
        GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
    }
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gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/util/star/StarGraphGraphSONSerializerV2.java [68:111]:
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    private void ser(final DirectionalStarGraph directionalStarGraph, final JsonGenerator jsonGenerator,
                     final SerializerProvider serializerProvider,
                     final TypeSerializer typeSerializer) throws IOException, JsonProcessingException {
        final StarGraph starGraph = directionalStarGraph.getStarGraphToSerialize();
        GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
        GraphSONUtil.writeWithType(GraphSONTokens.ID, starGraph.starVertex.id, jsonGenerator, serializerProvider, typeSerializer);
        jsonGenerator.writeStringField(GraphSONTokens.LABEL, starGraph.starVertex.label);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.IN);
        if (directionalStarGraph.getDirection() != null) writeEdges(directionalStarGraph, jsonGenerator, serializerProvider, typeSerializer, Direction.OUT);
        if (starGraph.starVertex.vertexProperties != null && !starGraph.starVertex.vertexProperties.isEmpty()) {
            jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
            GraphSONUtil.writeStartObject(starGraph, jsonGenerator, typeSerializer);
            final Set<String> keys = normalize ? new TreeSet<>(starGraph.starVertex.vertexProperties.keySet()) : starGraph.starVertex.vertexProperties.keySet();
            for (final String k : keys) {
                final List<VertexProperty> vp = starGraph.starVertex.vertexProperties.get(k);
                jsonGenerator.writeFieldName(k);
                GraphSONUtil.writeStartArray(k, jsonGenerator, typeSerializer);

                final List<VertexProperty> vertexProperties = normalize ?sort(vp, Comparators.PROPERTY_COMPARATOR) : vp;
                for (final VertexProperty property : vertexProperties) {
                    GraphSONUtil.writeStartObject(property, jsonGenerator, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.ID, property.id(), jsonGenerator, serializerProvider, typeSerializer);
                    GraphSONUtil.writeWithType(GraphSONTokens.VALUE, property.value(), jsonGenerator, serializerProvider, typeSerializer);

                    final Iterator<Property> metaProperties = normalize ?
                            IteratorUtils.list(property.properties(), Comparators.PROPERTY_COMPARATOR).iterator() : property.properties();
                    if (metaProperties.hasNext()) {
                        jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
                        GraphSONUtil.writeStartObject(metaProperties, jsonGenerator, typeSerializer);

                        while (metaProperties.hasNext()) {
                            final Property<Object> meta = metaProperties.next();
                            GraphSONUtil.writeWithType(meta.key(), meta.value(), jsonGenerator, serializerProvider, typeSerializer);
                        }
                        GraphSONUtil.writeEndObject(metaProperties, jsonGenerator, typeSerializer);
                    }
                    GraphSONUtil.writeEndObject(property, jsonGenerator, typeSerializer);
                }
                GraphSONUtil.writeEndArray(k, jsonGenerator, typeSerializer);
            }
            GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
        }
        GraphSONUtil.writeEndObject(starGraph, jsonGenerator, typeSerializer);
    }
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