Hi Thanks for reporting. Do you mind create a JIRA ticket so this is not lost.
And you and others are much welcome to work on a fix as a github PR or a .patch file. http://camel.apache.org/support.html On Tue, Jan 17, 2017 at 6:44 PM, johanvandeweerd <jo...@vandeweerd.be> wrote: > I have a known_hosts file on my classpath and I want the ftp-component to use > this known_hosts file when connecting to an sftp server (and not be > dependent on the ~/.ssh/known_hosts file). > The documentation (http://camel.apache.org/ftp2.html) mentions that u can > use the option knownHostsUri to configure the (classpath) location of a > known_hosts file. > When using this option (in combination with the option > useUserKnownHostsFile=false), camel fails to connect to the server because > of a NullPointerException (see below). > When debugging, it seems that the list of known_hosts from the classpath are > first loaded succesfully (SftpOperations:268) but afterwards the known_hosts > are ALWAYS overridden (SftpOperations:284). When setting the option > useUserKnownHostsFile to false, there is no file to load (no fallback to the > known_hosts file from the home directory) and the exception is thrown. > I made a small github project > (https://github.com/johanvandeweerd/camel-sftp) that can be cloned and run > to reproduce the error. You can play with the options in SftpRouteBuilder. > > 2017-01-17 18:19:33.397 WARN 2652 --- [ main] > o.a.c.c.file.remote.SftpConsumer : Error auto creating directory: > pub/example due Cannot connect to sftp://d...@test.rebex.net:22. This > exception is ignored. > > org.apache.camel.component.file.GenericFileOperationFailedException: Cannot > connect to sftp://d...@test.rebex.net:22 > at > org.apache.camel.component.file.remote.SftpOperations.connect(SftpOperations.java:146) > ~[camel-ftp-2.18.1.jar:2.18.1] > at > org.apache.camel.component.file.remote.RemoteFileConsumer.connectIfNecessary(RemoteFileConsumer.java:203) > ~[camel-ftp-2.18.1.jar:2.18.1] > at > org.apache.camel.component.file.remote.SftpConsumer.doStart(SftpConsumer.java:53) > ~[camel-ftp-2.18.1.jar:2.18.1] > at > org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:3371) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRouteConsumers(DefaultCamelContext.java:3688) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doStartRouteConsumers(DefaultCamelContext.java:3624) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:3544) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:3308) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3162) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:182) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2957) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2953) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2976) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:2953) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:2920) > [camel-core-2.18.1.jar:2.18.1] > at > org.apache.camel.spring.boot.RoutesCollector.maybeStart(RoutesCollector.java:141) > [camel-spring-boot-2.18.1.jar:2.18.1] > at > org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:116) > [camel-spring-boot-2.18.1.jar:2.18.1] > at > org.apache.camel.spring.boot.RoutesCollector.onApplicationEvent(RoutesCollector.java:41) > [camel-spring-boot-2.18.1.jar:2.18.1] > at > org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:882) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) > [spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE] > at > org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.boot.SpringApplication.run(SpringApplication.java:315) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at > org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) > [spring-boot-1.4.3.RELEASE.jar:1.4.3.RELEASE] > at be.engine31.camel.Application.main(Application.java:10) > [classes/:na] > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > ~[na:1.8.0_91] > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > ~[na:1.8.0_91] > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > ~[na:1.8.0_91] > at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] > at > com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) > [idea_rt.jar:na] > Caused by: java.lang.NullPointerException: null > at com.jcraft.jsch.Util.checkTilde(Util.java:489) > ~[jsch-0.1.54.jar:na] > at com.jcraft.jsch.KnownHosts.setKnownHosts(KnownHosts.java:54) > ~[jsch-0.1.54.jar:na] > at com.jcraft.jsch.JSch.setKnownHosts(JSch.java:317) > ~[jsch-0.1.54.jar:na] > at > org.apache.camel.component.file.remote.SftpOperations.createSession(SftpOperations.java:284) > ~[camel-ftp-2.18.1.jar:2.18.1] > at > org.apache.camel.component.file.remote.SftpOperations.connect(SftpOperations.java:115) > ~[camel-ftp-2.18.1.jar:2.18.1] > ... 38 common frames omitted > > > > > -- > View this message in context: > http://camel.465427.n5.nabble.com/camel-ftp-knownHostsUri-configuration-with-camel-2-18-1-tp5792693.html > Sent from the Camel - Users mailing list archive at Nabble.com. -- Claus Ibsen ----------------- http://davsclaus.com @davsclaus Camel in Action 2: https://www.manning.com/ibsen2
