| [[FAQ-FAQ]] |
| === FAQ |
| |
| Here are a list of commonly asked questions and answers. If you have any |
| questions which are not on this list, please talk to us on the |
| link:mailing-lists.adoc[Mailing Lists]. |
| |
| We link:../../../CONTRIBUTING.md[welcome contributions] and |
| this entire website is in |
| link:faq/how-does-the-website-work.adoc[the GitHub repository you can send a pull request], |
| so please join in and help us make the documentation better! |
| |
| [[FAQ-GeneralQuestions]] |
| ==== General Questions |
| |
| General questions about Camel |
| |
| * link:faq/can-i-get-commercial-support.adoc[Can I get commercial support?] |
| * link:faq/can-i-use-camel-on-java-14.adoc[Can I use Camel on Java 1.4?] |
| * link:faq/does-camel-work-on-ibms-jdk.adoc[Does Camel work on IBM's JDK?] |
| * link:support.adoc[How can I get help?] |
| * link:faq/how-can-i-get-the-source-code.adoc[How can I get the source code?] |
| * link:faq/how-does-camel-compare-to-mule.adoc[How does Camel compare to |
| Mule?] |
| * link:faq/how-does-camel-compare-to-servicemix.adoc[How does Camel compare |
| to ServiceMix?] |
| * link:faq/how-does-camel-compare-to-servicemix-eip.adoc[How does Camel |
| compare to ServiceMix EIP?] |
| * link:faq/how-does-camel-compare-to-synapse.adoc[How does Camel compare to |
| Synapse?] |
| * link:faq/how-does-camel-work.adoc[How does Camel work?] |
| * link:faq/how-does-camel-work-with-activemq.adoc[How does Camel work with |
| ActiveMQ?] |
| * link:faq/how-does-camel-work-with-servicemix.adoc[How does Camel work with |
| ServiceMix?] |
| * link:faq/how-does-the-camel-api-compare-to.adoc[How does the Camel API |
| compare to?] |
| * link:faq/how-does-the-website-work.adoc[How does the website work?] |
| * link:faq/how-do-i-become-a-committer.adoc[How do I become a committer?] |
| * link:faq/how-do-i-compile-the-code.adoc[How do I compile the code?] |
| * link:faq/how-do-i-edit-the-website.adoc[How do I edit the website?] |
| * link:faq/how-do-i-run-camel-using-java-webstart.adoc[How do I run Camel |
| using Java WebStart?] |
| * link:faq/if-i-use-servicemix-when-should-i-use-camel.adoc[If I use |
| ServiceMix when should I use Camel?] |
| * link:faq/is-camel-an-esb.adoc[Is Camel an ESB?] |
| * link:faq/is-camel-ioc-friendly.adoc[Is Camel IoC friendly?] |
| * link:faq/running-camel-standalone.adoc[Running Camel standalone] |
| * link:faq/what-are-the-dependencies.adoc[What are the dependencies?] |
| * link:faq/what-is-a-router.adoc[What is a router?] |
| * link:faq/what-is-camel.adoc[What is Camel?] |
| * link:faq/what-is-the-license.adoc[What is the license?] |
| * link:faq/what-jars-do-i-need.adoc[What jars do I need?] |
| * link:languages.adoc[What languages are supported?] |
| * link:faq/what-platforms-are-supported.adoc[What platforms are supported?] |
| * link:faq/why-the-name-camel.adoc[Why the name Camel?] |
| |
| [[FAQ-UsingCamelQuestions]] |
| ==== Using Camel Questions |
| |
| Questions on using Apache Camel |
| |
| * link:faq/classloader-issue-of-servicemix-camel-component.adoc[Classloader issue of servicemix-camel component] |
| * link:faq/how-do-i-specify-which-method-to-use-when-using-beans-in-routes.adoc[How do I specify which method to use when using beans in routes?] |
| * link:faq/how-can-i-create-a-custom-component-or-endpoint.adoc[How can I create a custom component or endpoint?] |
| * link:faq/how-can-i-get-the-remote-connection-ip-address-from-the-camel-cxf-consumer-.adoc[How can I get the remote connection IP address from the camel-cxf consumer ?] |
| * link:faq/how-can-i-stop-a-route-from-a-route.adoc[How can I stop a route from a route?] |
| * link:faq/how-can-webservice-clients-see-remote-faults-with-stacktraces-when-using-camel-cxf.adoc[How can webservice clients see remote faults with stacktraces when using camel-cxf?] |
| * link:faq/how-does-camel-look-up-beans-and-endpoints.adoc[How does Camel look up beans and endpoints?] |
| * link:configuring-camel.adoc[How do I add a component?] |
| * link:faq/how-do-i-change-the-logging.adoc[How do I change the logging?] |
| * link:faq/how-do-i-configure-endpoints.adoc[How do I configure endpoints?] |
| * link:faq/how-do-i-configure-password-options-on-camel-endpoints-without-the-value-being-encoded.adoc[How do I configure password options on Camel endpoints without the value being encoded?] |
| * link:faq/how-do-i-configure-the-default-maximum-cache-size-for-producercache-or-producertemplate.adoc[How do I configure the default maximum cache size for ProducerCache or ProducerTemplate?] |
| * link:faq/how-do-i-configure-the-maximum-endpoint-cache-size-for-camelcontext.adoc[How do I configure the maximum endpoint cache size for CamelContext?] |
| * link:faq/how-do-i-debug-my-route.adoc[How do I debug my route?] |
| * link:faq/how-do-i-disable-jmx.adoc[How do I disable JMX?] |
| * link:faq/how-do-i-enable-streams-when-debug-logging-messages-in-camel.adoc[How do I enable streams when debug logging messages in Camel?] |
| * link:faq/how-do-i-handle-failures-when-consuming-for-example-from-a-ftp-server.adoc[How do I handle failures when consuming for example from a FTP server?] |
| * link:faq/how-do-i-import-rests-from-other-xml-files.adoc[How do I import rests from other XML files?] |
| * link:faq/how-do-i-import-routes-from-other-xml-files.adoc[How do I import routes from other XML files?] |
| * link:faq/how-do-i-let-jetty-match-wildcards.adoc[How do I let Jetty match wildcards?] |
| * link:faq/how-do-i-name-my-routes.adoc[How do I name my routes?] |
| * link:faq/how-do-i-restart-camelcontext.adoc[How do I restart CamelContext?] |
| * link:faq/how-do-i-retrieve-the-thrown-exception-during-processing-an-exchange.adoc[How do I retrieve the thrown Exception during processing an Exchange?] |
| * link:faq/how-do-i-retry-failed-messages-forever.adoc[How do I retry failed messages forever?] |
| * link:faq/how-do-i-retry-processing-a-message-from-a-certain-point-back-or-an-entire-route.adoc[How do I retry processing a message from a certain point back or an entire route?] |
| * link:faq/how-do-i-reuse-the-contexttestsupport-class-in-my-unit-tests.adoc[How do I reuse the ContextTestSupport class in my unit tests?] |
| * link:faq/how-do-i-run-activemq-and-camel-in-jboss.adoc[How do I run ActiveMQ and Camel in JBoss?] |
| * link:faq/how-do-i-set-the-max-chars-when-debug-logging-messages-in-camel.adoc[How do I set the max chars when debug logging messages in Camel?] |
| * link:faq/how-do-i-specify-time-period-in-a-human-friendly-syntax.adoc[How do I specify time period in a human friendly syntax?] |
| * link:faq/how-do-i-use-a-big-uber-jar.adoc[How do I use a big (uber) JAR?] |
| * link:faq/how-do-i-use-camel-inside-servicemix.adoc[How do I use Camel inside ServiceMix?] |
| * link:faq/how-do-i-use-spring-property-placeholder-with-camel-xml.adoc[How do I use Spring Property Placeholder with Camel XML?] |
| * link:faq/how-do-i-use-uris-with-parameters-in-xml.adoc[How do I use URIs with parameters in XML?] |
| * link:faq/how-do-i-write-a-custom-processor-which-sends-multiple-messages.adoc[How do I write a custom Processor which sends multiple messages?] |
| * link:faq/how-should-i-invoke-my-pojos-or-spring-services.adoc[How should I invoke my POJOs or Spring Services?] |
| * link:faq/how-should-i-package-applications-using-camel-and-activemq.adoc[How should I package applications using Camel and ActiveMQ?] |
| * link:faq/how-to-avoid-importing-bunch-of-cxf-packages-when-start-up-the-camel-cxf-endpoint-from-osgi-platform-.adoc[How to avoid importing bunch of cxf packages when start up the camel-cxf endpoint from OSGi platform?] |
| * link:faq/how-to-avoid-sending-some-or-all-message-headers.adoc[How to avoid sending some or all message headers?] |
| * link:faq/how-to-define-a-static-camel-converter-method-in-scala.adoc[How to define a static Camel converter method in Scala?] |
| * link:faq/how-to-remove-the-http-protocol-headers-in-the-camel-message.adoc[How to remove the http protocol headers in the camel message?] |
| * link:faq/how-to-send-the-same-message-to-multiple-endpoints.adoc[How to send the same message to multiple endpoints?] |
| * link:faq/how-to-switch-the-cxf-consumer-between-http-and-https-without-touching-the-spring-configuration.adoc[How to switch the CXF consumer between HTTP and HTTPS without touching the Spring configuration?] |
| * link:faq/how-to-use-a-dynamic-uri-in-to.adoc[How to use a dynamic URI in to()?] |
| * link:faq/how-to-use-extra-camel-componets-in-servicemix-camel.adoc[How to use extra Camel componets in servicemix-camel?] |
| * link:faq/how-to-validate-the-camel-1x-context-xml-from-apache-camel-web-site.adoc[How to validate the camel 1.x context xml from Apache Camel web site?] |
| * link:faq/is-there-an-ide.adoc[Is there an IDE?] |
| * link:faq/should-i-deploy-camel-inside-the-activemq-broker-or-in-another-application.adoc[Should I deploy Camel inside the ActiveMQ broker or in another application?] |
| * link:faq/using-camel-core-testsjar.adoc[Using camel-core-tests.jar] |
| * link:faq/using-getin-or-getout-methods-on-exchange.adoc[Using getIn or getOut methods on Exchange] |
| * link:faq/why-cant-i-use-sign-in-my-password.adoc[Why can't I use + sign in my password?] |
| * link:faq/why-can-i-not-use-when-or-otherwise-in-a-java-camel-route.adoc[Why can I not use when or otherwise in a Java Camel route?] |
| * link:faq/why-does-ftp-component-not-download-any-files.adoc[Why does FTP component not download any files?] |
| * link:faq/why-does-my-file-consumer-not-pick-up-the-file-and-how-do-i-let-the-file-consumer-use-the-camel-error-handler.adoc[Why does my file consumer not pick up the file, and how do I let the file consumer use the Camel error handler?] |
| * link:faq/why-does-useoriginalmessage-with-error-handler-not-work-as-expected.adoc[Why does useOriginalMessage with error handler not work as expected?] |
| * link:faq/why-do-my-message-lose-its-headers-during-routing.adoc[Why do my message lose its headers during routing?] |
| * link:faq/why-is-my-message-body-empty.adoc[Why is my message body empty?] |
| * link:faq/why-is-my-processor-not-showing-up-in-jconsole.adoc[Why is my processor not showing up in JConsole?] |
| * link:faq/why-is-the-exception-null-when-i-use-onexception.adoc[Why is the exception null when I use onException?] |
| * link:faq/why-use-multiple-camelcontext.adoc[Why use multiple CamelContext?] |
| |
| [[FAQ-LoggingQuestions]] |
| ==== Logging Questions |
| |
| Questions on logging output from Camel to a console, using the |
| <<log-component,Log>> endpoint or JDK 1.4 logging or Log4j etc |
| |
| * link:faq/how-do-i-enable-debug-logging.adoc[How do I enable debug logging?] |
| * link:faq/how-do-i-use-java-14-logging.adoc[How do I use Java 1.4 logging?] |
| * link:faq/how-do-i-use-log4j.adoc[How do I use log4j?] |
| |
| [[FAQ-CamelEndpointQuestions]] |
| ==== Camel Endpoint Questions |
| |
| Questions on using the various Camel link:components.adoc[Components] |
| and link:endpoint.adoc[Endpoint] implementations |
| |
| * link:faq/how-do-i-invoke-camel-routes-from-jbi.adoc[How do I invoke Camel routes from JBI?] |
| * link:faq/how-do-i-make-my-jms-endpoint-transactional.adoc[How Do I Make My JMS Endpoint Transactional?] |
| * link:faq/how-do-i-set-the-mep-when-interacting-with-jbi.adoc[How do I set the MEP when interacting with JBI?] |
| * link:faq/how-do-the-direct-event-seda-and-vm-endpoints-compare.adoc[How do the direct, event, seda and vm endpoints compare?] |
| * link:faq/how-do-the-timer-and-quartz-endpoints-compare.adoc[How do the Timer and Quartz endpoints compare?] |
| |
| [[FAQ-ComponentQuestions]] |
| ==== Component Questions |
| |
| Questions on using specific components |
| |
| [[FAQ-JMSQuestions]] |
| ===== JMS Questions |
| |
| Questions on using the <<jms-component,JMS>> endpoints in Camel |
| |
| * link:faq/why-does-my-jms-route-only-consume-one-message-at-once.adoc[Why does my JMS route only consume one message at once?] |
| |
| [[FAQ-CommonProblems]] |
| ==== Common Problems |
| |
| Common Problems that people have when riding the Camel |
| |
| * link:faq/exception-beandefinitionstoreexception.adoc[Exception - BeanDefinitionStoreException] |
| * link:faq/exception-javaxnamingnoinitialcontextexception.adoc[Exception - javax.naming.NoInitialContextException] |
| * link:faq/exception-orgapachecamelnosuchendpointexception.adoc[Exception - org.apache.camel.NoSuchEndpointException] |
| * link:faq/exception-orgxmlsaxsaxparseexception.adoc[Exception - org.xml.sax.SAXParseException] |
| * link:faq/memory-leak-when-adding-and-removing-routes-at-runtime.adoc[Memory leak when adding and removing routes at runtime] |
| * link:faq/why-do-camel-throw-so-many-noclassdeffoundexception-on-startup.adoc[Why do Camel throw so many NoClassDefFoundException on startup?] |
| * link:faq/why-does-camel-use-too-many-threads-with-producertemplate.adoc[Why does Camel use too many threads with ProducerTemplate?] |
| * link:faq/why-does-maven-not-download-dependencies.adoc[Why does maven not download dependencies?] |
| |
| [[FAQ-Acknowledgement]] |
| ==== Acknowledgement |
| |
| Many thanks to the following organizations for helping the Camel |
| project. |
| |
| [width="100%",cols="50%,50%",] |
| |======================================================================= |
| |image:http://www.structure101.com/structure101-java/images/webapp.gif[image] |
| |http://www.headwaysoftware.com/[Headway Software] provided free |
| licenses of |
| http://www.headwaysoftware.com/products/structure101/index.php[Structure101] |
| for analyzing and managing the |
| http://www.structure101.com/structure101-java/tracker/camel/1.2.0/summary.html[architecture |
| of Camel] Java code. |
| |
| |image:https://www.yourkit.com/images/yk_logo.png[image] |
| |https://www.yourkit.com/[YourKit], LLC kindly provide free licenses for |
| the YourKit Java Profiler to open source projects. YourKit Java Profiler |
| is primarily used to investigate performance and memory leak issues |
| reported in Apache Camel. |
| |======================================================================= |
