Page History

h1. Camel 2.10.0 release (currently in progress)

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h2. New and Noteworthy

Welcome to the 2.10.0 release with approximately XXX issues resolved - including new features, improvements, and bug fixes, such as: 

* Internal code cleanup to reduce warnings reported by Eclipse
* Moved [Spring Testing] from {{camel-test}} to {{camel-test-spring}} component.
* Camel [Property Placeholders|Using PropertyPlaceholder] are now supported in embedded [Expression]s within Camel routes.
* Added missing options in the XML DSL for the [XPath] language to control and set which XPath Engine to use, etc.
* Added option {{logNamespaces}} to the [XPath] language to have {{INFO}} logging of detected namespaces from message.  This can be used to troubleshoot issues where an [XPath] expression doesn't work as expected (as it's often a namespace conflict).
* Added {{replyToCacheLevelName}} option to the [JMS] component, allowing configuration of cache levels for persistent reply consumers when doing request/reply over JMS. Some message brokers do not work well with caching, so users may need to set this option to {{CACHE_NONE}}.
* Added {{antInclude}} and {{antExclude}} options to [File|File2] and [FTP|FTP2] components to make it easier to specify include/exclude filters using ANT syntax.
* The [Camel archetypes|Camel Maven Archetypes] for Java and Scala no longer generate projects with Spring dependencies. 
* Improved {{JdbcMessageIdRepository}} in the [SQL|SQL Component] to use custom SQL statements/queries.
* Added option to [Properties] to allow silently ignoring property locations not found, such as a .properties file.
* Added {{managementNamePattern}} attribute to {{<camelContext>}} to make it very easy to customize and control the JMX naming of the Camel application. See details at [Camel JMX|Camel JMX#CamelJMX-ManagementNamingStrategy]. For example, in OSGi environments you can explicitly configure a {{managementNamePattern}} in case you do not want the bundleId as part of MBean names.
* Added streaming update support to [Solr] as well as support for SolrInputDocuments
* Added SolrJ DirectXMLRequest support to [Solr] to support XML based index updates
* Improved Camel [Mail] to support the {{replyTo}} option
* Added {{traceEnabled}} option to [Jetty] component so you have control over whether to allow HTTP TRACE calls against your Jetty endpoints.
* Polished the [Camel Maven Archetypes] to let the projects be prepared for [Testing], and fixed any WARNs from Maven.
* Added {{dumpRouteStatsAsXml}} methods to [JMX|Camel JMX] to make it easier to get the total performance stats as XML, and in one JMX call.
* [Graceful Shutdown] is now more aggressive if timeout occurred during shutdown, rejecting continued processing of messages or redeliveries.
* Add {{ShutdownPrepared}} SPI to allow custom Services (also EIPs) in routes to do custom code in preparation for shutdown.
* The {{camel-archetype-java}} [Camel Maven Archetypes] is now a pure Java DSL based project (no longer Spring)
* [JMS] consumer is less verbose when logging uncaught exceptions thrown while processing a message. Added {{errorHandlerLoggingLevel}}, and {{errorHandlerLogStackTrace}} options to tweak the logging verbosity.
* Added {{messageId}} as an [MDC logging] key.
* Improved Camel's Transaction [Error Handler] logging to better pinpoint and correlate redelivered messages (from, e.g., a JMS broker), making the logs much easier to read.
* Added a timeout option to [Spring Web Services] for specifying the read timeout while invoking a webservice.
* Optimized [Type Converter] registry for possible concurrency contention when looking up a type converter.
* Improved [Simple] language to work better with floating point numbers in [Predicate]s
* Camel is now less verbose when starting and stopping, with less being logged at {{INFO}} level.
* Add support for keyed data queues to [jt400] component.
* [Idempotent Consumer] is now enlisted in JMX, which allows monitoring the duplicate message count as well as the operation to reset it.
* Thread pools registered in [JMX|Camel JMX] are now unregistered when Camel shuts them down. Note that all MBeans will be unregistered from JMX when Camel shuts itself down. This improvement is to unregister thread pools more eagerly, such as when routes are removed at runtime.
* Camel will now also copy the message headers for a {{JmsMessage}} if you leverage {{useOriginalMessage}} in an {{onException}} definition.
* Added {{mockEndpointsAndSkip}} to [AdviceWith] and the [Test Kit|Testing]
* The [File|File2] and [FTP|FTP2] components now support filtering directories. The {{isDirectory}} method on the {{GenericFile}} class can be used to skip unwanted directories, accelerating file consumption.
* [SMPP] connections can now be tunneled through an HTTP proxy by configuring HTTP proxy settings.
* Camel now also checks, when starting a route dynamically, whether there would be any violations on multiple consumers from the same [Endpoint]. Previously this check only occurred during Camel startup - now it always happens.
* Stopping a {{ConsumerTemplate}} or a {{ProducerTemplate}} will now stop and shutdown its cache to cleanup any resources which otherwise may not have been reclaimed until shutdown.
* [ScheduledPollConsumer|http://camel.apache.org/maven/current/camel-core/apidocs/org/apache/camel/impl/ScheduledPollConsumer.html] will now shutdown thread pools more eagerly, such as when stopping a {{ConsumerTemplate}}.
* Added option {{asyncStartListener}} to [JMS] to allow starting JMS consumers (e.g. routes) asynchronously. This can be used to avoid blocking in case the JMS consumer takes long time to establish a connection to the JMS broker.
* [Wire Tap] now supports [Error Handling|Error handling in Camel] when sending a tapped message to an [Endpoint].
* Added the autogenColumns, configRef and strategyRef options to the [CSV] dataformat in XML DSL.
* [Validator|Validation] component will now fail with a better error message if resource schema refers to element which cannot be resolved.
* Added support for retrieving generated keys from [JDBC] component.
* Added support for Spring 3.1.x.
* Added {{retainFirst}}, and {{retainLast}} options to [Mock] component.

h3. Fixed issues

* Fixed memory leak when dynamically adding and removing many routes at runtime. See this [FAQ|Memory leak when adding and removing routes at runtime] for more information. 
* Fixed potential NPE in [FTP|FTP2] consumer when using double slashes as starting directory.
* Fixed [InterceptSendToEndpoint|Intercept#InterceptSendToEndpoint] when using {{skipSendToEndpoint=true}} with a [when|predicate] predicate to only skip sending if the predicate was true.
* Fixed an issue with [Bean Binding] directly in a method name not working properly with method call expressions.
* Fixed issue with using custom namespaces in [XPath] expressions when using [OSGi Blueprint|Using OSGi blueprint with Camel]
* Fixed [Validation] to support {{xs:import}} in the schema files.
* Fixed [Poll Enrich|Content Enricher] where the timeout was not explicitly configured to use blocking mode (was wrongly using non-blocking mode).
* Fixed [Threads EIP|Async] to handle rejected policies, ensuring the [Exchange] will finish the {{UnitOfWork}} and will be de-registered from the inflight registry.
* Fixed [Delayer] not working with a [Bean] expression to define the delay when using XML DSL
* Fixed [JMS] consumer to no longer complain by default if no errorHandler is configured when an uncaught exception was thrown while processing a message.
* Fixed the String trim issue in [Simple] expressions.
* Fixed the issue with [Recipient List] not triggering [Error Handler] for endpoints with non existing [Component]s.
* Fixed [Load Balancer] to update statistics in [JMX|Camel JMX]
* Fixed [SEDA] producer configured with {{waitForTaskToComplete=Always}} to not hand over on-completion tasks, which otherwise could be processed prematurely.
* Fixed a potential issue with configuring custom start and end tokens for the [Simple] language when using Spring XML.
* Fixed an issue with [Type Converter] where NaN values were converted to integers.
* Fixed [HTTP], [HTTP4], and [Jetty] producers to send empty HTTP headers for [Exchange] headers with an empty value.
* Fixed an issue with configuring a custom thread pool profile on some [EIP]s.
* Fixed an issue with [Intercept] causing processors to not update their performance statistics in [JMX|Camel JMX]
* Fixed using <errorHandler> with embedded <redeliveryPolicy> to support [Using PropertyPlaceholder]
* Fixed issue with using <redeliveryPolicy>, and <redeliveryPolicyProfile> with OSGi Blueprint.
* Fixed failover [Load Balancer] to perform defensive copy of the message before attempting failover, to ensure previous attempts do not propagate back into succeeding attempts.
* Fixed issue when restarting application using [Quartz] with a persistent (non clustered) job store, where the app was not shutdown cleanly (such as crashed)

h3. New [Enterprise Integration Patterns]

h3. New [Components]

* {{camel-avro}}
* {{camel-aws}} - AWS-DDB - Amazon DynamoDB
* {{camel-beanio}} - [Data Format|BeanIO] to map objects to flat structured format
* {{camel-cdi}}
* {{camel-fop}}
* {{camel-gson}} - For [JSON] data format using the Google GSon project
* {{camel-mina2}}
* {{camel-mongodb}} - for [MongoDB] integration
* {{camel-ssh}} - For executing commands on a [SSH] Server
* {{camel-core}} - [Stub] for stubbing endpoints, for development and testing purposes
* {{camel-test-blueprint}} - For [Blueprint Testing]
* {{camel-test-spring}} - For [Spring Testing]
* {{camel-twitter}} - For integrating with [Twitter]
* {{camel-websocket}} - For using [Websocket] 

h3. DSL Changes

h3. New Annotations

h3. New [Data Formats|Data Format]

* {{camel-avro}}
* {{camel-beanio}} - [Data Format|BeanIO] to map objects to flat structured format
* {{camel-gson}} - For [JSON] data format using the Google GSon project

h3. New [Languages]

h3. New [Examples]

* {{camel-example-ssh}}
* {{camel-example-twitter-websocket}}

h3. New [Tutorials]

h2. API changes/breaking

* Added {{shutdownForced}} and {{forceShutdown}} methods to {{org.apache.camel.spi.ShutdownStrategy}}
* Add boolean parameter to {{prepareShutdown}} on {{ShutdownAware}}
* The {{errorHandler}} method in {{RouteBuilder}} now returns {{void}}, as it's only used for configuring context-scoped error handlers.
* Removed the {{SimpleLanguage}} constructor that takes custom start and end tokens. Instead use the change methods to set custom tokens.
* Added {{onThreadPoolRemove}} and {{onErrorHandlerRemove}} methods to {{LifecycleStrategy}}

h2. Internal/Non API refactorings that may affect users

* Removed method {{setManagementName}} from {{CamelContext}} as it should not be used by Camel end users
* Added method {{isTransactedRedelivered}} to [Exchange]
* Added method {{isDirectory}} to {{GenericFile}}

h2. Known Issues

* The [Tracer] may not output all details for some situations, such as when using {{onCompletion}} or {{intercept}}, etc.
* The project cannot fully build the site using Maven (e.g. running {{"mvn site"}}). There is no plan to fix this, as the project does not use maven site.
* JBoss 7 may log a WARNing when running Camel as a WAR file.

h2. Dependency Upgrades

* AHC 1.6.5 to 1.7.1
* AWS 1.2.2 to 1.3.0
* Commons-codec 1.4 to 1.6
* Commons-net 2.2 to 3.0.1
* CXF 2.5.1 to 2.5.2
* Freemarker 2.3.18 to 2.3.19
* Groovy 1.8.5 to 1.8.6
* Hadoop 0.20.203.0 to 1.0.0
* HTTP4 core 4.1.2 to 4.1.4
* HTTP4 client 4.1.2 to 4.1.3
* Hazelcast 1.9.4.4 to 2.0.1
* Hawtbuf 1.7 to 1.9
* Jackson 1.9.2 to 1.9.5
* Jackrabbit 2.2.4 to 2.2.11
* Jasypt 1.7 to 1.9.0
* Jetty 1.10 to 1.12
* JClouds 1.3.1 to 1.3.2
* Jettison 1.3 to 1.3.1
* Jetty 7.5.3 to 7.5.4
* JRuby 1.6.6 to 1.6.7
* JSCH 0.1.44 to 0.1.46
* JuEL 2.1.3 to 2.1.4
* Kratti 0.4.1 to  0.4.4
* Logback 1.0.0 to 1.0.1
* Lucene 3.0.3 to 3.5.0
* MyBatis 3.0.6 to 3.1.0
* Netty 3.2.6 to 3.3.1
* OGNL 3.0.2 to 3.0.4
* Resetlet 2.0.10 to 2.0.11
* SNMP 1.8.1 to 1.10.1
* Shiro 1.1.0 to 1.2.0
* Stringtemplate 3.0 to 3.2.1
* Spring 3.0.6 to 3.0.7/3.1.1
* Spring Integration 2.0.5 to 2.1.0
* Spring Security 3.0.7 to 3.1.0
* Spymemcached 2.5 to 2.8.0
* Tagsoup 1.2 to 1.2.1 
* Woodstox 4.1.1 to 4.1.2
* XStream 1.4.1 to 1.4.2
* XML Security 1.4.5 to 1.5.1

h2. Important changes to consider when upgrading

* Moved [Spring Testing] from {{camel-test}} to {{camel-test-spring}} component.
* Combination of {{skipSendToEndpoint=true}} and {{when}} predicate now triggers conditional skipping (you may have been relying on unconditional skipping up until now)
* The thread name pattern has changed tokens to avoid clashing with [Using PropertyPlaceholder] (see [Threading Model] for more details).
* [Poll Enrich|Content Enricher] will now block if no messages are available and no explicit timeout has been configured.
* The option {{lazyLoadTypeConverter=true}} has been deprecated, and will be removed in a future release. The best practice is to load type converters while bootstrapping Camel.
* The [Camel Test kit|Testing] no longer lazily loads type converters. 
* Keys for [MDC logging] have been prefixed with {{"camel."}}.
* [Wire Tap] can no longer change destination from [JMX|Camel JMX]

h2. Notice

* If you want to deploy Apache Camel 2.9.0 into Apache Karaf, we highly recommend to use the 'jre.properties.cxf' configuration, which is part of Apache Karaf 2.2.5.

h2. Getting the Distributions

h3. Binary Distributions

|| Description || Download Link || PGP Signature file of download ||
| Windows Distribution | [apache-camel-2.10.0.zip|http://www.apache.org/dyn/closer.cgi/camel/apache-camel/2.10.0/apache-camel-2.10.0.zip] | [apache-camel-2.10.0.zip.asc|http://www.apache.org/dist/camel/apache-camel/2.10.0/apache-camel-2.10.0.zip.asc] |
| Unix/Linux/Cygwin Distribution | [apache-camel-2.10.0.tar.gz|http://www.apache.org/dyn/closer.cgi/camel/apache-camel/2.10.0/apache-camel-2.10.0.tar.gz] | [apache-camel-2.10.0.tar.gz.asc|http://www.apache.org/dist/camel/apache-camel/2.10.0/apache-camel-2.10.0.tar.gz.asc] |
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h3. Source Distributions

|| Description || Download Link || PGP Signature file of download ||
| Source Distribution | [apache-camel-2.10.0-src.zip|http://www.apache.org/dyn/closer.cgi/camel/apache-camel/2.10.0/apache-camel-2.10.0-src.zip] | [apache-camel-2.10.0-src.zip.asc|http://www.apache.org/dist/camel/apache-camel/2.10.0/apache-camel-2.10.0-src.zip.asc] |