Non-compatible bean definition ConnectionImpl vs DefaultConnection

andrei.florea18 · February 28, 2018, 1:16pm

Hi.

I have an exception when trying to fire up the tomcat. Stack trace extracted from the log:

    com.haulmont.cuba.core.sys.AbstractWebAppContextLoader - Error initializing application
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [cuba-web-spring.xml]; nested exception is org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'cuba_Connection' for bean class [com.haulmont.cuba.web.security.ConnectionImpl] conflicts with existing, non-compatible bean definition of same name and class [com.haulmont.cuba.web.DefaultConnection]

I’m using cuba platform 6.8.1. This is my spring.xml:

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns="http://www.springframework.org/schema/beans"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">

        <!-- Annotation-based beans -->
        <context:component-scan base-package="ro.umbono.maintapp"/>
    </beans>

This is my web-spring.xml:

    <?xml version="1.0" encoding="UTF-8" standalone="no"?>
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns="http://www.springframework.org/schema/beans"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
        <!-- Annotation-based beans -->
        <context:component-scan base-package="ro.umbono.maintapp"/>
        <bean class="com.haulmont.cuba.web.sys.remoting.WebRemoteProxyBeanCreator">
            <property name="serverSelector"
                      ref="cuba_ServerSelector"/>
            <property name="remoteServices">
                <map>
                    <entry key="maintapp_FileDescriptorService"
                           value="ro.umbono.maintapp.service.FileDescriptorService"/>
                </map>
            </property>
        </bean>
    </beans>

What’s wrong ?

artamonov · February 28, 2018, 1:24pm

Hi,

There is no DefaultConnection bean any more. Could you try to undeploy the application (Run - Undeploy) and then restart it?

andrei.florea18 · February 28, 2018, 1:26pm

It worked. Thank you!

andrei.florea18 · March 7, 2018, 9:31am

I rephrase. It worked the first time but now almost everyday it gives me the same error and I need to undeploy and run to make it work. Shouldn’t it have been fixed on the first try ?

artamonov · March 7, 2018, 10:54am

Could you tell us more about your project? Do you use add-ons? Could you attach your build.gradle file here?

andrei.florea18 · March 8, 2018, 9:44am

Certainly. I use only the bpm add-on for now. I’m planning on using the charts one too.
build.gradle (5.5 KB)

EDIT: I forgot to mention that I upgraded to cuba platform 6.8.3 to see if it solves the problem but it’s still there.

EDIT: I just started it and it gave me the same exception.

2018-03-08 11:45:00.652 ERROR [localhost-startStop-1] com.haulmont.cuba.core.sys.AbstractWebAppContextLoader - Error initializing application
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [cuba-web-spring.xml]; nested exception is org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'cuba_Connection' for bean class [com.haulmont.cuba.web.security.ConnectionImpl] conflicts with existing, non-compatible bean definition of same name and class [com.haulmont.cuba.web.DefaultConnection]
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:414) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:252) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:614) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:515) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at com.haulmont.cuba.core.sys.CubaClassPathXmlApplicationContext.<init>(CubaClassPathXmlApplicationContext.java:27) ~[cuba-global-6.7.4.jar:6.7.4]
	at com.haulmont.cuba.core.sys.AbstractAppContextLoader.createApplicationContext(AbstractAppContextLoader.java:79) ~[cuba-global-6.7.4.jar:6.7.4]
	at com.haulmont.cuba.core.sys.AbstractAppContextLoader.initAppContext(AbstractAppContextLoader.java:56) ~[cuba-global-6.7.4.jar:6.7.4]
	at com.haulmont.cuba.core.sys.AbstractWebAppContextLoader.contextInitialized(AbstractWebAppContextLoader.java:72) ~[cuba-global-6.7.4.jar:6.7.4]
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4745) [catalina.jar:8.5.23]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207) [catalina.jar:8.5.23]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.5.23]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752) [catalina.jar:8.5.23]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728) [catalina.jar:8.5.23]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) [catalina.jar:8.5.23]
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1144) [catalina.jar:8.5.23]
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1878) [catalina.jar:8.5.23]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_152]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_152]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_152]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_152]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
Caused by: org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'cuba_Connection' for bean class [com.haulmont.cuba.web.security.ConnectionImpl] conflicts with existing, non-compatible bean definition of same name and class [com.haulmont.cuba.web.DefaultConnection]
	at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.checkCandidate(ClassPathBeanDefinitionScanner.java:345) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:283) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:87) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:74) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1411) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1401) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:172) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:142) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:94) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:508) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
	... 30 common frames omitted

The weird thing is that it does this only once a day. When I first start the server. If I undeploy and run it, I can work all day on it without problems. The next day it will throw the same exception.

artamonov · March 9, 2018, 12:24pm

Did you switch between Git branches with different platform versions in the project? Usually, this problem occurs if you switch between VCS branches and do not undeploy the application.

andrei.florea18 · March 12, 2018, 8:14am

I’m not using Git. It’s just me working on the application. I do use subversion to commit my work though. However, I don’t see how that can affect it since it’s just me updating the project.

artamonov · March 12, 2018, 8:50am

May be you use the same tomcat server for multiple applications? Because these beans exist only in different versions of the platform

andrei.florea18 · March 12, 2018, 8:57am

I don’t use the same tomcat for multiple applications. The tomcat I’m working on is dedicated to this app. I don’t know what could be wrong. It’s very weird that it happens only once a day and I can’t reproduce it.