gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/gryo/GryoSerializersV1.java [124:255]:
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    public final static class PathSerializer implements SerializerShim<Path> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Path path) {
            kryo.writeClassAndObject(output, DetachedFactory.detach(path, false));
        }

        @Override
        public <I extends InputShim> Path read(final KryoShim<I, ?> kryo, final I input, final Class<Path> pathClass) {
            return (Path) kryo.readClassAndObject(input);
        }
    }

    public final static class PSerializer implements SerializerShim<P> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final P p) {
            output.writeString(p instanceof ConnectiveP ?
                    (p instanceof AndP ? "and" : "or") :
                    p.getBiPredicate().toString());
            if (p instanceof ConnectiveP || p.getValue() instanceof Collection) {
                output.writeByte((byte) 0);
                final Collection<?> coll = p instanceof ConnectiveP ?
                        ((ConnectiveP<?>) p).getPredicates() : (Collection) p.getValue();
                output.writeInt(coll.size());
                coll.forEach(v -> kryo.writeClassAndObject(output, v));
            } else {
                output.writeByte((byte) 1);
                kryo.writeClassAndObject(output, p.getValue());
            }
        }

        @Override
        public <I extends InputShim> P read(final KryoShim<I, ?> kryo, final I input, final Class<P> clazz) {
            final String predicate = input.readString();
            final boolean isCollection = input.readByte() == (byte) 0;
            final Object value;
            if (isCollection) {
                value = new ArrayList<>();
                final int size = input.readInt();
                for (int ix = 0; ix < size; ix++) {
                    ((List) value).add(kryo.readClassAndObject(input));
                }
            } else {
                value = kryo.readClassAndObject(input);
            }

            try {
                if (predicate.equals("and") || predicate.equals("or"))
                    return predicate.equals("and") ? new AndP((List<P>) value) : new OrP((List<P>) value);
                else if (value instanceof Collection) {
                    if (predicate.equals("between"))
                        return P.between(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("inside"))
                        return P.inside(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("outside"))
                        return P.outside(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("within"))
                        return P.within((Collection) value);
                    else if (predicate.equals("without"))
                        return P.without((Collection) value);
                    else
                        return (P) P.class.getMethod(predicate, Collection.class).invoke(null, (Collection) value);
                } else
                    return (P) P.class.getMethod(predicate, Object.class).invoke(null, value);
            } catch (final Exception e) {
                throw new IllegalStateException(e.getMessage(), e);
            }
        }
    }

    public final static class TextPSerializer implements SerializerShim<TextP> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final TextP p) {
            final BiPredicate<?,?> tp = p.getBiPredicate();
            if (tp instanceof Text) {
                output.writeString(((Text) tp).name());
            } else if (tp instanceof Text.RegexPredicate) {
                output.writeString(((Text.RegexPredicate) tp).isNegate() ? "notRegex" : "regex");
            } else {
                output.writeString(tp.toString());
            }
            kryo.writeObject(output, p.getValue());
        }

        @Override
        public <I extends InputShim> TextP read(final KryoShim<I, ?> kryo, final I input, final Class<TextP> clazz) {
            final String predicate = input.readString();
            final String value = kryo.readObject(input, String.class);

            try {
                return (TextP) TextP.class.getMethod(predicate, String.class).invoke(null, value);
            } catch (final Exception e) {
                throw new IllegalStateException(e.getMessage(), e);
            }
        }
    }

    public final static class LambdaSerializer implements SerializerShim<Lambda> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Lambda lambda) {
            output.writeString(lambda.getLambdaScript());
            output.writeString(lambda.getLambdaLanguage());
            output.writeInt(lambda.getLambdaArguments());
        }

        @Override
        public <I extends InputShim> Lambda read(final KryoShim<I, ?> kryo, final I input, final Class<Lambda> clazz) {
            final String script = input.readString();
            final String language = input.readString();
            final int arguments = input.readInt();
            //
            if (-1 == arguments || arguments > 2)
                return new Lambda.UnknownArgLambda(script, language, arguments);
            else if (0 == arguments)
                return new Lambda.ZeroArgLambda<>(script, language);
            else if (1 == arguments)
                return new Lambda.OneArgLambda<>(script, language);
            else
                return new Lambda.TwoArgLambda<>(script, language);
        }
    }

    public final static class DefaultRemoteTraverserSerializer implements SerializerShim<DefaultRemoteTraverser> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final DefaultRemoteTraverser remoteTraverser) {
            kryo.writeClassAndObject(output, remoteTraverser.get());
            output.writeLong(remoteTraverser.bulk());
        }

        @Override
        public <I extends InputShim> DefaultRemoteTraverser read(final KryoShim<I, ?> kryo, final I input, final Class<DefaultRemoteTraverser> remoteTraverserClass) {
            final Object o = kryo.readClassAndObject(input);
            return new DefaultRemoteTraverser<>(o, input.readLong());
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gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/gryo/GryoSerializersV3.java [239:370]:
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    public final static class PathSerializer implements SerializerShim<Path> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Path path) {
            kryo.writeClassAndObject(output, DetachedFactory.detach(path, false));
        }

        @Override
        public <I extends InputShim> Path read(final KryoShim<I, ?> kryo, final I input, final Class<Path> pathClass) {
            return (Path) kryo.readClassAndObject(input);
        }
    }

    public final static class PSerializer implements SerializerShim<P> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final P p) {
            output.writeString(p instanceof ConnectiveP ?
                    (p instanceof AndP ? "and" : "or") :
                    p.getBiPredicate().toString());
            if (p instanceof ConnectiveP || p.getValue() instanceof Collection) {
                output.writeByte((byte) 0);
                final Collection<?> coll = p instanceof ConnectiveP ?
                        ((ConnectiveP<?>) p).getPredicates() : (Collection) p.getValue();
                output.writeInt(coll.size());
                coll.forEach(v -> kryo.writeClassAndObject(output, v));
            } else {
                output.writeByte((byte) 1);
                kryo.writeClassAndObject(output, p.getValue());
            }
        }

        @Override
        public <I extends InputShim> P read(final KryoShim<I, ?> kryo, final I input, final Class<P> clazz) {
            final String predicate = input.readString();
            final boolean isCollection = input.readByte() == (byte) 0;
            final Object value;
            if (isCollection) {
                value = new ArrayList<>();
                final int size = input.readInt();
                for (int ix = 0; ix < size; ix++) {
                    ((List) value).add(kryo.readClassAndObject(input));
                }
            } else {
                value = kryo.readClassAndObject(input);
            }

            try {
                if (predicate.equals("and") || predicate.equals("or"))
                    return predicate.equals("and") ? new AndP((List<P>) value) : new OrP((List<P>) value);
                else if (value instanceof Collection) {
                    if (predicate.equals("between"))
                        return P.between(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("inside"))
                        return P.inside(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("outside"))
                        return P.outside(((List) value).get(0), ((List) value).get(1));
                    else if (predicate.equals("within"))
                        return P.within((Collection) value);
                    else if (predicate.equals("without"))
                        return P.without((Collection) value);
                    else
                        return (P) P.class.getMethod(predicate, Collection.class).invoke(null, (Collection) value);
                } else
                    return (P) P.class.getMethod(predicate, Object.class).invoke(null, value);
            } catch (final Exception e) {
                throw new IllegalStateException(e.getMessage(), e);
            }
        }
    }

    public final static class TextPSerializer implements SerializerShim<TextP> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final TextP p) {
            final BiPredicate<?,?> tp = p.getBiPredicate();
            if (tp instanceof Text) {
                output.writeString(((Text) tp).name());
            } else if (tp instanceof Text.RegexPredicate) {
                output.writeString(((Text.RegexPredicate) tp).isNegate() ? "notRegex" : "regex");
            } else {
                output.writeString(tp.toString());
            }
            kryo.writeObject(output, p.getValue());
        }

        @Override
        public <I extends InputShim> TextP read(final KryoShim<I, ?> kryo, final I input, final Class<TextP> clazz) {
            final String predicate = input.readString();
            final String value = kryo.readObject(input, String.class);

            try {
                return (TextP) TextP.class.getMethod(predicate, String.class).invoke(null, value);
            } catch (final Exception e) {
                throw new IllegalStateException(e.getMessage(), e);
            }
        }
    }

    public final static class LambdaSerializer implements SerializerShim<Lambda> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Lambda lambda) {
            output.writeString(lambda.getLambdaScript());
            output.writeString(lambda.getLambdaLanguage());
            output.writeInt(lambda.getLambdaArguments());
        }

        @Override
        public <I extends InputShim> Lambda read(final KryoShim<I, ?> kryo, final I input, final Class<Lambda> clazz) {
            final String script = input.readString();
            final String language = input.readString();
            final int arguments = input.readInt();
            //
            if (-1 == arguments || arguments > 2)
                return new Lambda.UnknownArgLambda(script, language, arguments);
            else if (0 == arguments)
                return new Lambda.ZeroArgLambda<>(script, language);
            else if (1 == arguments)
                return new Lambda.OneArgLambda<>(script, language);
            else
                return new Lambda.TwoArgLambda<>(script, language);
        }
    }

    public final static class DefaultRemoteTraverserSerializer implements SerializerShim<DefaultRemoteTraverser> {
        @Override
        public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final DefaultRemoteTraverser remoteTraverser) {
            kryo.writeClassAndObject(output, remoteTraverser.get());
            output.writeLong(remoteTraverser.bulk());
        }

        @Override
        public <I extends InputShim> DefaultRemoteTraverser read(final KryoShim<I, ?> kryo, final I input, final Class<DefaultRemoteTraverser> remoteTraverserClass) {
            final Object o = kryo.readClassAndObject(input);
            return new DefaultRemoteTraverser<>(o, input.readLong());
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