Apache Camel throws java.lang.NullPointerException on scheduling ftp endpoint using quartz scheduler

Question

I'm trying to use camel-quartz2 for scheduling FTP endpoint in spring boot application. But however on the start of the application it's throwing Null Pointer Exception.

Below is the code snippet for FTP URI

private final String NBP_GMI_TRADE_DAILY_FTP_CONNECTION_URI = "ftp://<username>@<hostip>/NBP/GMI/?password=<password>"
        + "&disconnect=true"
        + "&idempotent=true"
        + "&idempotentKey=${file:name}-${file:size}"
        + "&sendEmptyMessageWhenIdle=true"
        + "&filter=#nbpGmiTradeDailyFileFilter"
        + "&passiveMode=true"
        + "&binary=true"
        + "&recursive=true"
        + "scheduler=quartz2"
        + "&scheduler.cron=0+0/2+*+?+*+SUN,SAT+*";

FTP Camel Configuration

from(NBP_GMI_TRADE_DAILY_FTP_CONNECTION_URI)
    .routeId("NBP_GMI_TRADE_DAILY_FTP_ROUTE")
    .choice()
    .when(simple("${body} != null")).setHeader(Exchange.FILE_NAME,simple("${file:name.noext}_${date:now:yyyyMMddHHmmssSSS}.${file:ext}")).to("file://{{user.home}}/NBP/data/daily/backup/?fileName=${date:now:yyyyMMdd}/${file:name}").end();

On Application start, I'm getting below exception

        org.apache.camel.spring.boot.CamelSpringBootInitializationException: java.lang.NullPointerException
        at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:225) ~[camel-spring-boot-2.19.3.jar:2.19.3]
        at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:52) ~[camel-spring-boot-2.19.3.jar:2.19.3]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:393) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE]
        at com.fis.derivatives.utility.nbp.Application.main(Application.java:36) [classes/:na]
    Caused by: java.lang.NullPointerException: null
        at org.apache.camel.impl.DefaultScheduledPollConsumerScheduler.startScheduler(DefaultScheduledPollConsumerScheduler.java:145) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.ScheduledPollConsumer.startScheduler(ScheduledPollConsumer.java:456) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.component.file.remote.FtpConsumer.doStart(FtpConsumer.java:67) ~[camel-ftp-2.19.3.jar:2.19.3]
        at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:3514) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRouteConsumers(DefaultCamelContext.java:3831) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doStartRouteConsumers(DefaultCamelContext.java:3767) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:3687) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:3451) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3305) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:202) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3089) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3085) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3108) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3085) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3022) ~[camel-core-2.19.3.jar:2.19.3]
        at org.apache.camel.spring.boot.RoutesCollector.maybeStart(RoutesCollector.java:242) ~[camel-spring-boot-2.19.3.jar:2.19.3]
        at org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:217) ~[camel-spring-boot-2.19.3.jar:2.19.3]
        ... 13 common frames omitted

I using below version of spring-boot and apache camel respectively

spring-boot: 1.5.6.RELEASE
apache-camel: 2.19.3

Any help would be greatly appreciated.

Answer 1

I saw that in your endpoint string you have : "scheduler=quartz2" , this should be "&scheduler=quartz2" . Could you also check if you have included the camel-quartz2 or camel-quartz2-starter dependency?