NPE in integration test case

[stevehu]

java.lang.NullPointerException
	at com.networknt.saga.order.service.OrderCommandHandler.approve(OrderCommandHandler.java:35)
	at com.networknt.saga.participant.SagaCommandHandlersBuilder.lambda$onMessage$1(SagaCommandHandlersBuilder.java:52)
	at com.networknt.saga.participant.SagaCommandHandler.lambda$new$0(SagaCommandHandler.java:26)
	at com.networknt.tram.command.consumer.CommandHandler.lambda$new$0(CommandHandler.java:28)
	at com.networknt.tram.command.consumer.CommandHandler.invokeMethod(CommandHandler.java:63)
	at com.networknt.tram.command.consumer.CommandDispatcher.invoke(CommandDispatcher.java:100)
	at com.networknt.saga.participant.SagaCommandDispatcher.invoke(SagaCommandDispatcher.java:78)
	at com.networknt.tram.command.consumer.CommandDispatcher.messageHandler(CommandDispatcher.java:84)
	at com.networknt.saga.participant.SagaCommandDispatcher.messageHandler(SagaCommandDispatcher.java:42)
	at com.networknt.tram.consumer.kafka.MessageConsumerKafkaImpl.lambda$subscribe$0(MessageConsumerKafkaImpl.java:42)
	at com.networknt.eventuate.kafka.consumer.KafkaMessageProcessor.process(KafkaMessageProcessor.java:35)
	at com.networknt.eventuate.kafka.consumer.EventuateKafkaConsumer.lambda$start$0(EventuateKafkaConsumer.java:105)
	at java.lang.Thread.run(Thread.java:748)
java.lang.NullPointerException
	at com.networknt.saga.order.service.OrderCommandHandler.reject(OrderCommandHandler.java:42)
	at com.networknt.saga.participant.SagaCommandHandlersBuilder.lambda$onMessage$1(SagaCommandHandlersBuilder.java:52)
	at com.networknt.saga.participant.SagaCommandHandler.lambda$new$0(SagaCommandHandler.java:26)
	at com.networknt.tram.command.consumer.CommandHandler.lambda$new$0(CommandHandler.java:28)
	at com.networknt.tram.command.consumer.CommandHandler.invokeMethod(CommandHandler.java:63)
	at com.networknt.tram.command.consumer.CommandDispatcher.invoke(CommandDispatcher.java:100)
	at com.networknt.saga.participant.SagaCommandDispatcher.invoke(SagaCommandDispatcher.java:78)
	at com.networknt.tram.command.consumer.CommandDispatcher.messageHandler(CommandDispatcher.java:84)
	at com.networknt.saga.participant.SagaCommandDispatcher.messageHandler(SagaCommandDispatcher.java:42)
	at com.networknt.tram.consumer.kafka.MessageConsumerKafkaImpl.lambda$subscribe$0(MessageConsumerKafkaImpl.java:42)
	at com.networknt.eventuate.kafka.consumer.KafkaMessageProcessor.process(KafkaMessageProcessor.java:35)
	at com.networknt.eventuate.kafka.consumer.EventuateKafkaConsumer.lambda$start$0(EventuateKafkaConsumer.java:105)
	at java.lang.Thread.run(Thread.java:748)
java.lang.NullPointerException
	at com.networknt.saga.order.service.OrderCommandHandler.approve(OrderCommandHandler.java:35)
	at com.networknt.saga.participant.SagaCommandHandlersBuilder.lambda$onMessage$1(SagaCommandHandlersBuilder.java:52)
	at com.networknt.saga.participant.SagaCommandHandler.lambda$new$0(SagaCommandHandler.java:26)
	at com.networknt.tram.command.consumer.CommandHandler.lambda$new$0(CommandHandler.java:28)
	at com.networknt.tram.command.consumer.CommandHandler.invokeMethod(CommandHandler.java:63)
	at com.networknt.tram.command.consumer.CommandDispatcher.invoke(CommandDispatcher.java:100)
	at com.networknt.saga.participant.SagaCommandDispatcher.invoke(SagaCommandDispatcher.java:78)
	at com.networknt.tram.command.consumer.CommandDispatcher.messageHandler(CommandDispatcher.java:84)
	at com.networknt.saga.participant.SagaCommandDispatcher.messageHandler(SagaCommandDispatcher.java:42)
	at com.networknt.tram.consumer.kafka.MessageConsumerKafkaImpl.lambda$subscribe$0(MessageConsumerKafkaImpl.java:42)
	at com.networknt.eventuate.kafka.consumer.KafkaMessageProcessor.process(KafkaMessageProcessor.java:35)
	at com.networknt.eventuate.kafka.consumer.EventuateKafkaConsumer.lambda$start$0(EventuateKafkaConsumer.java:105)
	at java.lang.Thread.run(Thread.java:748)
java.lang.NullPointerException
	at com.networknt.saga.order.service.OrderCommandHandler.reject(OrderCommandHandler.java:42)
	at com.networknt.saga.participant.SagaCommandHandlersBuilder.lambda$onMessage$1(SagaCommandHandlersBuilder.java:52)
	at com.networknt.saga.participant.SagaCommandHandler.lambda$new$0(SagaCommandHandler.java:26)
	at com.networknt.tram.command.consumer.CommandHandler.lambda$new$0(CommandHandler.java:28)
	at com.networknt.tram.command.consumer.CommandHandler.invokeMethod(CommandHandler.java:63)
	at com.networknt.tram.command.consumer.CommandDispatcher.invoke(CommandDispatcher.java:100)
	at com.networknt.saga.participant.SagaCommandDispatcher.invoke(SagaCommandDispatcher.java:78)
	at com.networknt.tram.command.consumer.CommandDispatcher.messageHandler(CommandDispatcher.java:84)
	at com.networknt.saga.participant.SagaCommandDispatcher.messageHandler(SagaCommandDispatcher.java:42)
	at com.networknt.tram.consumer.kafka.MessageConsumerKafkaImpl.lambda$subscribe$0(MessageConsumerKafkaImpl.java:42)
	at com.networknt.eventuate.kafka.consumer.KafkaMessageProcessor.process(KafkaMessageProcessor.java:35)
	at com.networknt.eventuate.kafka.consumer.EventuateKafkaConsumer.lambda$start$0(EventuateKafkaConsumer.java:105)
	at java.lang.Thread.run(Thread.java:748)