Apache camel 4.4.0 Release

New and Noteworthy

This release is the new Camel 4.4.0 LTS release.

Supported Java version

This version supports Java 17 and 21.

Getting the Binaries using Maven

To use this release in your Apache Maven pom.xml, import the Camel Bill of Materials (BOM) and then include the camel-core and any other components needed without specifying the version.

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.apache.camel</groupId>
      <artifactId>camel-bom</artifactId>
      <version>4.4.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

<dependencies>
  <dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-core</artifactId>
  </dependency>
  <dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-COMPONENT</artifactId>
  </dependency>
</dependencies>

To use this release in a Spring Boot application, use Spring Boot spring-boot-dependencies and Camel camel-spring-boot-bom Bill of Materials (BOM):

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-dependencies</artifactId>
      <version> SPRING BOOT VERSION HERE </version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
    <dependency>
      <groupId>org.apache.camel.springboot</groupId>
      <artifactId>camel-spring-boot-bom</artifactId>
      <version>4.4.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

<dependencies>
  <dependency>
    <groupId>org.apache.camel.springboot</groupId>
    <artifactId>camel-COMPONENT-starter</artifactId>
  </dependency>
</dependencies>

Apache Camel

Download	Signature and checksum
apache-camel-4.4.0-src.zip (Sources)	PGP Signature, SHA512 Checksum
apache-camel-4.4.0-sbom.xml (SBOM, CycloneDX XML)	PGP Signature, SHA512 Checksum
apache-camel-4.4.0-sbom.json (SBOM, CycloneDX JSON)	PGP Signature, SHA512 Checksum

Download

Signature and checksum

apache-camel-4.4.0-src.zip (Sources)

PGP Signature, SHA512 Checksum

apache-camel-4.4.0-sbom.xml (SBOM, CycloneDX XML)

PGP Signature, SHA512 Checksum

apache-camel-4.4.0-sbom.json (SBOM, CycloneDX JSON)

PGP Signature, SHA512 Checksum

Git tag checkout

Release is tagged with camel-4.4.0 in the Git, to fetch it use:

git clone https://git-wip-us.apache.org/repos/asf/camel.git
cd camel
git checkout camel-4.4.0

Resolved issues

Here is a list of all the issues that have been resolved for this release

Bug (39)

CAMEL-20664: camel-mapstruct - MapStruct mappers not found in Spring Boot
CAMEL-20401: camel-kudu: Potential NullPointerException on endpoint stop
CAMEL-20399: String to short type conversion fails
CAMEL-20394: camel-jbang wrong transformation when rests and routes tags are used together
CAMEL-20392: camel-jq - Inclined jq in simple language should keep quotes
CAMEL-20380: Kafka Batch Consumer: doesn't honor the poll timeout set
CAMEL-20378: Languages that can take source from header or property is not thread safe
CAMEL-20375: Camel-ical: Camel-20370 brought a NPE in some cases
CAMEL-20373: camel-kafka - KafkaIdempotentRepository may allow some duplicates after application restart
CAMEL-20370: dataformat configurer is not generated for camel-beanio
CAMEL-20362: Camel-Netty-HTTP: Headers validation should be enabled by default
CAMEL-20357: camel-core - throttle EIP doesn't work as expected when it's in a loopDoWhile
CAMEL-20356: camel-core - LoggerHelper returns wrong name for source code line precise
CAMEL-20354: camel-jbang - Using camel run --source-dir component should be able to load from classpath
CAMEL-20352: camel.springboot.includeNonSingletons is not respected anymore: prototype Route Builders are always initialized.
CAMEL-20351: Camel Jbang execution from remote file doesn't work anymore
CAMEL-20350: camel-observation - Null values should be null instead of a string null literal value
CAMEL-20349: camel-salesforce: ClassCastException when a request is retried after a 401
CAMEL-20342: camel-openapi-java - NPE in OpenApiHelper
CAMEL-20340: camel-jbang - camel dependency list throws Exception for dataformats
CAMEL-20339: camel-yaml-dsl - Saga EIP with options causes NPE
CAMEL-20334: AWS S3 cloudevents data type does not set proper data Content-Type
CAMEL-20307: camel-quickfix -Queue Full
CAMEL-20301: Camel retains objects when restarting route via policy
CAMEL-20292: Probable bug in DependencyDownloaderConsole - inverted flags in output
CAMEL-20280: camel-jcache - JCachePolicy does not init bypassExpression
CAMEL-20262: camel-spring-boot - TomcatEmbeddedWebappClassLoader return nested instead file in jar file path
CAMEL-20254: camel-http - pre-emptive authentication breaks basic auth
CAMEL-20250: camel-kinesis: resume API fails to resume properly
CAMEL-20248: camel-salesforce: Most integration tests failing
CAMEL-20239: Camel-Azure-Files: The component doesn't set account parameter on the URI
CAMEL-20232: camel-core - Kamelets with Enrich and PollEnrich dynamic endpoints with template parameters
CAMEL-20218: KafkaIdempotentRepository cache incorrectly flagged as ready
CAMEL-20121: camel-smpp SMPPSession should be closed after receiving Unbind from peer
CAMEL-19972: camel-kafka manual commit configuration inconsistency
CAMEL-19849: camel-zipfile: fails to release exchange due to Exceptions
CAMEL-19262: camel-azure-eventbus - Apache Camel wrapper for Service Bus stops receiving message.
CAMEL-17722: MDC - custom properties in MDC Unit Of Work are not cleared at the end of route
CAMEL-17721: MDC - custom MDC property value is fixed to first assigned value by MDCUnitOfWork

Dependency upgrade (6)

CAMEL-20344: camel-spring-boot - Upgrade to 3.2.2
CAMEL-20278: Upgrade Wildfly Elytron to 2.x version
CAMEL-20116: Upgrade to Jackson BOM 2.16.0
CAMEL-19971: Camel-Consul: Consul-client repository is now read only
CAMEL-19722: camel-etcd3 - Upgrade jedtc to 0.7.6
CAMEL-19620: camel-coap - Upgrade to Californium Scandium 3.x

Improvement (52)

CAMEL-20409: camel-core - ModelReifierFactory should detect custom on classpath
CAMEL-20403: Support Knative broker as source/sink in Pipe
CAMEL-20400: Support for Knative SinkBinding
CAMEL-20398: camel-kubernetes - Add option on component to create kubernetes client
CAMEL-20396: camel-kudu: Allow KuduClient to be autowired
CAMEL-20391: camel-core - All languages should support expression loaded from external resource
CAMEL-20387: camel-tracing - Use case insensitive headers
CAMEL-20386: camel-jq - Add @JQ for bean annotation
CAMEL-20382: camel-kafka - RecordMetadata header should be named like the other headers
CAMEL-20376: camel-xpath - XPath language add support for variables
CAMEL-20369: camel-beanio - Bring back beanio as v3
CAMEL-20365: camel-ftp - Add option to configure yes/no answer to create known host file
CAMEL-20364: camel-jms - Remove JMSCorrelationIDAsBytes header as its not needed
CAMEL-20363: camel-jms - Make getting JMSCorrelationID more robust for brokers that has bugs
CAMEL-20359: camel-groovy - Consistent name to refer to exchangeProperties
CAMEL-20358: camel-microprofile-config: CamelMicroProfilePropertiesSource should consider active profiles when loading properties
CAMEL-20355: Throttle EIP: milliseconds not available anymore
CAMEL-20346: camel-core - Simple language contains function can be improved
CAMEL-20345: camel-core - Simple binary operator in predicates better detected by predicate parser
CAMEL-20308: Change order of camel-spring-boot-bom and spring-boot-dependencies in dependencyManamgent
CAMEL-20306: Camel-CassandraQL: Add ObjectInputFilter String pattern parameter in CassandraAggregationRepository to be used in unmarshall operations
CAMEL-20303: Camel-Sql: Add ObjectInputFilter String pattern parameter in JdbcAggregationRepository to be used in unmarshall operations
CAMEL-20298: Enhancing JSONata Compatibility for Full Reference Port
CAMEL-20281: Camel-AWS Components: Make it possible to use AwsSessionCredentials to support temporary credentials
CAMEL-20275: components - Mark options that can are used for text inputs such as a SQL query
CAMEL-20274: camel-management - Add option to allow updating routes
CAMEL-20273: camel-jbang - Stub dataformat and language during export
CAMEL-20271: Camel-AWS-Cloudtrail: Improve consumers by adding more information as exchange headers
CAMEL-20258: [JBang] Use quartz out of the box for camel-cron
CAMEL-20253: camel-jbang - Add support for jolokia 2.x
CAMEL-20249: camel-jbang - Reload routes with micrometer should clean up old routes
CAMEL-20247: Rework Dynamic Router EIP Component
CAMEL-20246: camel-core - WireTap should not create correlated exchange copy
CAMEL-20245: camel-jbang - Startup should log http summary if already started such as when using supervised route controller
CAMEL-20243: camel-main - Move route controller options into its own group
CAMEL-20242: camel-routes health check reports UP right before routes were attempted to be setup when using supervising route controller
CAMEL-20241: camel-jbang - Pretty print xml body should not have noisy empty lines
CAMEL-20238: Add spring-boot-starter-jdbc dependency to camel-spring-jdbc-starter
CAMEL-20236: camel-salesforce: add missing properties to bulk 2.0 Job class
CAMEL-20233: camel-jbang - camel catalog other does not list kotlin-dsl
CAMEL-20231: camel-jasypt - make generators configurable
CAMEL-20230: camel-core - PollEnrich and Enrich EIP should eager start component if possible
CAMEL-20228: camel-jbang - camel export doesn't recognize component in pollenrich
CAMEL-20219: Add Protobuf data type transformer
CAMEL-20202: camel-azure - Consumers should avoid loading entire payload into memory
CAMEL-19956: camel-jbang - Run with custom log4j2.properties file
CAMEL-19413: camel-parquet-avro: add some defaulted values as options on dataformat to make it more configurable
CAMEL-19411: camel-kamelet - Should be using noErrorHandler
CAMEL-19398: camel-core: type converter performs slowly due to exception-based flow control
CAMEL-18969: Support mongodb connection string/uri to configure camel-mongodb component
CAMEL-18590: Camel-Azure components: Define a unique configuration for authentication
CAMEL-14028: Allow DataFormats to unmarshal known data formats without first converting to bytes

New Feature (25)

CAMEL-20408: camel-core - Tracer should include exchange variables
CAMEL-20406: camel-core - Route scoped variables
CAMEL-20379: [camel-test-infra-cli] Improve container configuration, adding external maven repositories
CAMEL-20338: Camel JMS producer should add headers
CAMEL-20336: Add a WebAssembly component and language
CAMEL-20333: Kotlin API
CAMEL-20289: camel-core - FluentProducerTemplate - Add withVariable and withProperty
CAMEL-20288: camel-core - Convert header and variable To another name
CAMEL-20286: camel-netty: add support for native transport over KQueue
CAMEL-20285: camel-json-validator: Add ability to configure ObjectMapper using endpoint properties
CAMEL-20277: camel-grpc: gRPC proxy with streaming
CAMEL-20270: Introduce plugins for Camel JBang
CAMEL-20251: Add Camel K commands to Camel JBang
CAMEL-20229: Camel-Azure-Storage-Queue: Add CloudEvents Data Type Transformer
CAMEL-20223: Camel-Spring-Boot: Camel Azure Key Vault should Support Azure Identity in the component and secrets function
CAMEL-20220: Camel Azure Key Vault: Support Azure Identity in the component and secrets function
CAMEL-19749: camel-core - Allow users to use variables in route to store data instead of headers
CAMEL-19241: Adding a Kafka Batch Consumer
CAMEL-18559: Components which do remote communication should be marked as such
CAMEL-18082: camel-jbang - Prompt mode for required values
CAMEL-17825: Hash generator in the Simple language
CAMEL-17719: camel-salesforce: allow to retrieve CDC json schema from meta service
CAMEL-16064: camel-kafka - Add batching consumer
CAMEL-15570: camel-jte - Template Engine component
CAMEL-15252: Google Pubsub Component manual acknowledgement mode

Sub-task (1)

CAMEL-20007: Java 21 - Fix test failures related to Ignite component

Task (29)

CAMEL-20397: camel-jms: fix incorrect details regarding JMS 1.1 and 2.0
CAMEL-20384: modernization: modernize map operations
CAMEL-20366: Dependabot: Define some exclusions in the yaml configuration
CAMEL-20360: camel-jasypt: Improve and tidy documentation
CAMEL-20347: Improve handling of interrupts
CAMEL-20335: spring-xml build error using `/component-test` on GitHub Actions
CAMEL-20305: camel-core: ensure log consistency
CAMEL-20297: Swallowing interrupts
CAMEL-20296: Allow testing through /component-test for projects having `it` folders
CAMEL-20294: camel-facebook: review and/or deprecate
CAMEL-20283: camel-elasticsearch - Deprecate
CAMEL-20279: Fix issue related to some flaky tests using test container with AWS localstack or hashicorp
CAMEL-20268: Several classes are reformatted during mvn install, causing pull/merge issues
CAMEL-20267: camel-core: convert Throttler and SamplingThrottler to a monotonic time source
CAMEL-20264: AvailablePortFinder is duplicated
CAMEL-20261: camel-http ignoreCookies option value has been renamed
CAMEL-20260: Remove Camel HDFS Starter
CAMEL-20259: Remove Camel-HDFS Component
CAMEL-20257: camel-core: convert AbstractContext to the clock API
CAMEL-20256: camel-core: convert Throughput logger to a monotonic time source
CAMEL-20252: camel-core: review performance tests
CAMEL-20235: camel-kafka: consolidate commit management behavior between component and endpoint
CAMEL-20234: camel-core: consolidate / simplify exchange constructors
CAMEL-20225: camel-core: modernize management of duration and timestamps
CAMEL-20224: Deprecate milliseconds-based input from StopWatch
CAMEL-20169: camel-salesforce restore ResponseNotifier
CAMEL-19746: [DOCS ] Camel-mybatis component - missing code examples
CAMEL-19519: camel-file: replace Thread.sleep in tests
CAMEL-19338: Add integration tests for camel-jbang

Test (6)

CAMEL-20389: Fix incorrectly named integration tests
CAMEL-20353: camel-rest-openapi: test broken after swagger upgrade
CAMEL-20295: camel-grpc: Enable tests to run on more platforms
CAMEL-20284: camel-ignite - Enable tests on JDK21
CAMEL-20276: camel-jms: shared topic tests are broken
CAMEL-20269: camel-test-infra-artemis: concurrency issues

Wish (1)

CAMEL-18482: camel-core - Pre 3.13 Split EIP behaviour

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