b237c37d00e28a6b7d4f36bdb4ee6d3badb717ad,device/iothub-java-client/src/main/java/com/microsoft/azure/iothub/transport/amqps/AmqpsIotHubConnectionBaseHandler.java,AmqpsIotHubConnectionBaseHandler,shutdown,#,401

Before Change



    public void shutdown(){
		this.linkFlow = false;
        this.sender.close();
        this.receiver.close();
        this.session.close();
        this.connection.close();
    }

    /**

After Change



    public void shutdown(){
		this.linkFlow = false;
        if (this.sender != null) {
            this.sender.close();
        }
        if (this.receiver != null) {
            this.receiver.close();
        }
        if (this.session != null) {
            this.session.close();
        }
        if (this.connection != null) {
            this.connection.close();
        }
    }