Spring, OpenJPA, getting Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class" when it exists

2023-03-29 18:42 问答作者：

I had a simple spring app working where this MediafilebrowserController was working and I could access a url at: http://localhost/item/something and it would work fine. I then proceeded to integrate openJPA into the project, based on an existing project I had from another developer. After doing this I thought I was all set but now I am getting the error as below, basically saying it can't find my controller class, I have checked and the class does exist at the path its claiming it can't find it at within the Target directory that I am running the app from.

I have been searching on this but nothing I have found has helped me much, I'm wondering if anyone can help me narrow down what may be causing this. Thanks

I am getting an exception with root cause:

(full stracktrace: http://pastie.org/2402614 )

 org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0': 
Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'mediafilebrowserController' defined in file 
[/home/user/workspace/mediaModule/target/MediaFileBrowser-0.0.1-SNAPSHOT/WEB-INF/classes/com/company/mediafilebrowser/spring/controller/MediafilebrowserController.class]: 
Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: 
Could not initialize class com.company.mediafilebrowser.spring.controller.MediafilebrowserController

(linebreak for ease in reading)

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
            org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
            org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
            org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
            org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
            org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
            org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
            org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
            org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
            org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
            org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
            org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
            org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
            org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
            javax.servlet.GenericServlet.init(GenericServlet.java:212)
            org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
            org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
            org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
            org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
            org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
            java.lang.Thread.run(Thread.java:636)

This is my controller class:

package com.company.mediafilebrowser.spring.controller;

import javax.servlet.http.HttpSession;


import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.view.velocity.VelocityView;

@Controller

@RequestMapping("/item")

public class MediafilebrowserController {

    @RequestMapping(value = "/{testinput}")

    public String temp(@PathVariable("testinput") String testinput,

            HttpSession session, Model model) {

        session.setAttribute("testattribute", testinput);

        System.out.println("It is working");
        return "something";

    }
}

My servlet-context.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <!-- DispatcherServlet Context: defines this servlet's request-processing 
        infrastructure -->

    <!-- Scans within the base package of the application for @Components to 
        configure as beans -->
    <!-- @Controller, @Service, @Configuration, etc. -->
    <context:component-scan base-package="com.company.mediafilebrowser.spring.controller" />
    <!-- Enables the Spring MVC @Controller programming model -->
    <mvc:annotation-driven />

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/view/jsp" p:suffix=".jsp" />

    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="mediafilebrowser" />
    </bean>

        <bean id="entityManagerResourceLoader"
        class="com.company.mediafilebrowser.spring.resourceloader.EntityManagerResourceLoader"
        p:entityManagerFactory-ref="entityManagerFactory" />

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>

    <bean id="uploadedFileDAO" class="com.company.mediafilebrowser.uploadedfile.dao.UploadedFileDAO">
        <property name="entityManagerFactory">
            <ref bean="entityManagerFactory" />
        </property>
    </bean>

    <bean id="uploadedFileService" class="com.company.mediafilebrowser.uploadedfile.service.UploadedFileService">
        <property name="uploadedFileDAO">
            <ref bean="uploadedFileDAO" />
        </property>
    </bean>



</beans>

My POM:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.company</groupId>
    <artifactId>MediaFileBrowser</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>

        <dependencies>
        <!-- <dependency> <groupId>net.disbelieve</groupId> <artifactId>joffree</artifactId> 
            <version>0.6.1</version> </dependency> -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>xstream</groupId>
            <artifactId>xstream</artifactId>
            <version>1.2.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>3.0.5.RELEASE</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.openjpa</groupId>
            <artifactId>openjpa-all</artifactId>
            <version>2.1.0</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <type>jar</type>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>drools</groupId>
            <artifactId>drools-all</artifactId>
            <version>2.0</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.jbpm</groupId>
            <artifactId>jbpm-persistence-jpa</artifactId>
            <version>5.1.0.CR1</version>
            <type>jar</type>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>hibernate-annotations</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.jbpm</groupId>
            <artifactId>jbpm-bam</artifactId>
            <version>5.1.0.CR1</version>
            <type>jar</type>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>hibernate-core</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.jbpm</groupId>
            <artifactId>jbpm-bpmn2</artifactId>
            <version>5.1.0.CR1</version>
            <type>jar</type>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>hibernate-core</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.drools</groupId>
            <artifactId>drools-persistence-jpa</artifactId>
            <version>5.2.0.CR1</version>
            <type>jar</type>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>hibernate-annotations</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>hibernate-entitymanager</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>hibernate-commons-annotations</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>hibernate-core</artifactId>
                    <groupId>org.hibernate</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
            <version>1.0</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.codehaus.btm</groupId>
            <artifactId>btm</artifactId>
            <version>2.1.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.12.1.GA</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>jta</artifactId>
            <version>1.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.16</version>
            <type>jar</type>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity</artifactId>
            <version>1.7</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
   开发者_开发问答         <version>3.0.5.RELEASE</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.6.1</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
    </dependencies>

    <repositories>
        <repository>
            <id>opensymphony</id>
            <url>https://maven.atlassian.com/content/repositories/atlassian-3rdparty</url>
        </repository>
        <repository>
            <id>langhua</id>
            <url>http://maven2.langhua.org/public</url>
        </repository>
        <repository>
            <id>jboss</id>
            <url>https://repository.jboss.org/nexus</url>
        </repository>
    </repositories>

    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>openjpa-maven-plugin</artifactId>
                <version>1.2</version>
                <configuration>
                    <includes>com/kryterion/mediafilebrowser/**/model/*.class</includes>
                    <addDefaultConstructor>true</addDefaultConstructor>
                    <enforcePropertyRestrictions>true</enforcePropertyRestrictions>
                    <!-- Pass additional properties to the Plugin here <toolProperties> 
                        <property> <name>directory</name> <value>otherdirectoryvalue</value> </property> 
                        </toolProperties> -->
                </configuration>
                <executions>
                    <execution> 
                        <id>enhancer</id> 
                        <phase>process-classes</phase> 
                        <goals> 
                            <goal>enhance</goal> 
                        </goals> 
                    </execution> 
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.openjpa</groupId>
                        <artifactId>openjpa-all</artifactId>
                        <version>2.1.0</version>
                    </dependency>
                </dependencies>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>emma-maven-plugin</artifactId>
                <version>1.0-alpha-3</version>
                <inherited>true</inherited>
                <executions>
                    <execution> 
                        <phase>process-classes</phase> 
                        <goals> 
                            <goal>instrument</goal> 
                        </goals> 
                    </execution> 
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <inherited>true</inherited>
                <configuration>
                    <forkMode>once</forkMode>
                    <reportFormat>xml</reportFormat>
                    <classesDirectory>${project.build.directory}/generated-classes/emma/classes</classesDirectory>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <configuration>
                    <warName>TestDelivery</warName>
                </configuration>
                <version>2.1.1</version>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <reporting>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>emma-maven-plugin</artifactId>
                <version>1.0-alpha-3</version>
            </plugin>
        </plugins>
    </reporting>
</project>

In servlet-context.xml, define the controller class using a bean:

<bean id="mediafilebrowserController" class="com.company.mediafilebrowser.spring.controller.MediafilebrowserController"/>

继续阅读：exception maven openjpa spring

Spring, OpenJPA, getting Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class" when it exists

更多精彩内容

精彩评论

最新问答

央视是哪个频道？

请问买过的朋友，舒提啦旅行箱实际使用体验如何？？

检查不孕不育需要的费用？

海信ULED电视画质有什么不同的地方?？

钉子可以挂的住画框幕布吗？

问答排行榜

王昌瑞《潜梦追凶》剧组庆生新锐演员未来可期？

Is it allowed to ask users to enter credit card details for own payment method?

Escaping "<" in Perl-generated XML

imessage会显示已读吗？

微信重新建群怎么建？