Spring Integration Java DSL Error

Question

I have set up a new Spring Boot + Spring Integration + Spring Integration Java DSL project using latest available versions. The project builds okay but, when I run the application, I am getting:

Caused by: java.lang.NoSuchMethodError: org.springframework.integration.dsl.StandardIntegrationFlow.isRegisterComponents()Z
    at org.springframework.integration.dsl.config.IntegrationFlowBeanPostProcessor.processStandardIntegrationFlow(IntegrationFlowBeanPostProcessor.java:139) ~[spring-integration-java-dsl-1.2.3.RELEASE.jar:?]
    at org.springframework.integration.dsl.config.IntegrationFlowBeanPostProcessor.postProcessBeforeInitialization(IntegrationFlowBeanPostProcessor.java:100) ~[spring-integration-java-dsl-1.2.3.RELEASE.jar:?]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:423) ~[spring-beans-5.0.3.RELEASE.jar:5.0.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1702) ~[spring-beans-5.0.3.RELEASE.jar:5.0.3.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583) ~[spring-beans-5.0.3.RELEASE.jar:5.0.3.RELEASE]

The dependencies being used are currently as follows:

compile ("org.springframework.boot:spring-boot-starter:2.0.0.RC1") {
    exclude group: "org.springframework.boot", module: "spring-boot-starter-logging"
}
compile "org.springframework.boot:spring-boot-starter-data-jpa:2.0.0.RC1"
compile "org.springframework.boot:spring-boot-starter-log4j2:2.0.0.RC1"
compile "org.springframework.integration:spring-integration-core:5.0.1.RELEASE"
compile "org.springframework.integration:spring-integration-http:5.0.1.RELEASE"
compile "org.springframework.integration:spring-integration-jms:5.0.1.RELEASE"
compile "org.springframework.integration:spring-integration-java-dsl:1.2.3.RELEASE"

Could the error be due to wrong combination of jar versions? I am not sure how to debug this error.

Answer 1

When you use Spring Integration 5.0 already, you don't need that extra spring-integration-java-dsl dependency. It has been merged to the core project since the version 5.0 .

See more info in the Migration Guide and on that page for Spring Integration Java DSL project.