java.lang.NoClassDefFoundError: org/apache/commons/collections/set/MapBackedSet

Question

I am using SpringFrameWorkVersion 5.2.0.M3 and common-collections version 4.2. While building my project getting below error :

java.lang.NoClassDefFoundError: org/apache/commons/collections/set/MapBackedSet at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1791) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)

Could you please share the pom.xml file. We can't find the issues just with this trace — AyoubMK, Sep 02 '20 at 13:24
welcome to stack overflow :-) please show us an [mcve] or an excerpt of your code that causes the stacktrace — JimHawkins, Sep 02 '20 at 13:42

score 0 · Answer 1 · answered Sep 02 '20 at 13:16

0

Could you please share your dependencies? It seems to some conflicts in dependency.

answered Sep 02 '20 at 13:16

Atul

133
3
12

score 0 · Accepted Answer · answered Dec 24 '20 at 18:25

I think you have a conflict between two versions of Commons Collections, I way to resolve the problem is to add in the pom file the tag with the version of the library which in this case is 4.4.

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-collections4</artifactId>
            <version>4.4</version>
        </dependency>
    </dependencies>
</dependencyManagement>

java.lang.NoClassDefFoundError: org/apache/commons/collections/set/MapBackedSet

2 Answers2