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POSuddenly my spring.xml won't instantiate my classes and Error Exception occurs
 

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  1. POSuddenly my spring.xml won't instantiate my classes and Error Exception occurs
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    <p>I encountered a weird error that I could not understand... When I run my web project... My jsp displayed. But after clicking the submit bottom, it hangs then error results. I could not understand what I do wrong.. it is like 3hours trying to check my problem. But right now i need some help.. Thanks guys.</p> <pre><code>Unable to instantiate Action, lotmovement.action.RegisterAction, defined for 'register' in namespace '/'Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registeraction' defined in class path resource [spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [lotmovement.action.RegisterAction]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [spring.xml]; nested exception is java.lang.StackOverflowError org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:115) org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:61) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) java.security.AccessController.doPrivileged(Native Method) org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:139) org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:83) lotmovement.action.RegisterAction.&lt;init&gt;(RegisterAction.java:27) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:525) java.lang.Class.newInstance0(Class.java:372) java.lang.Class.newInstance(Class.java:325) com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:131) com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:162) com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:151) com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:121) com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:300) com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:400) com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194) org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63) org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39) com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:501) org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:432) </code></pre> <p>And on the tomcat server, this keeps on repeating..</p> <pre><code>Nov 26, 2012 3:10:51 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@2d43b35f: defining beans [userprofile,registeraction,insertuserprofile,entitystart,recordexistuserprofile]; root of factory hierarchy Nov 26, 2012 3:10:51 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@50016db: defining beans [userprofile,registeraction,insertuserprofile,entitystart,recordexistuserprofile]; root of factory hierarchy Nov 26, 2012 3:10:51 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7ef1277f: defining beans [userprofile,registeraction,insertuserprofile,entitystart,recordexistuserprofile]; root of factory hierarchy Nov 26, 2012 3:10:51 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@3d510eb6: defining beans [userprofile,registeraction,insertuserprofile,entitystart,recordexistuserprofile]; root of factory hierarchy Nov 26, 2012 3:10:51 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@66893099: defining beans [userprofile,registeraction,insertuserprofile,entitystart,recordexistuserprofile]; root of factory hierarchy Nov 26, 2012 3:17:59 PM org.apache.catalina.startup.HostConfig checkResources INFO: Undeploying context [/LotMovement_5spingtest] </code></pre> <p>This is my XML file.</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"&gt; &lt;bean id="userprofile" class="lotmovement.business.entity.UserProfile"&gt; &lt;/bean&gt; &lt;bean id="registeraction" class="lotmovement.action.RegisterAction"&gt; &lt;/bean&gt; &lt;bean id="insertuserprofile" class="lotmovement.business.crud.InsertUserProfile"&gt; &lt;/bean&gt; &lt;bean id="entitystart" class="lotmovement.business.crud.EntityStart"&gt; &lt;/bean&gt; &lt;bean id="recordexistuserprofile" class="lotmovement.business.crud.RecordExistUserProfile"&gt; &lt;/bean&gt; &lt;/beans&gt; </code></pre> <p>This is my some of my code..</p> <pre><code>/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package lotmovement.action; import com.opensymphony.xwork2.ActionSupport; import lotmovement.business.crud.EntityStart; import lotmovement.business.crud.InsertUserProfile; import lotmovement.business.crud.RecordExistUserProfile; import lotmovement.business.entity.UserProfile; import org.apache.commons.lang3.StringUtils; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /** * * @author god-gavedmework */ public class RegisterAction extends ActionSupport { private static String userId; private static String password; private static String firstName; private static String lastName; private static int securityLevel; ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml"); EntityStart es = (EntityStart) context.getBean("entitystart"); @Override public void validate() { es.StartDbaseConnection(); RecordExistUserProfile reup = (RecordExistUserProfile) context.getBean("recordexistuserprofile"); if (reup.checkrecordexist()) { addActionError("record already exist."); } } @Override public String execute() { InsertUserProfile iup = (InsertUserProfile) context.getBean("insertuserprofile"); iup.Insert(); return SUCCESS; } </code></pre> <p>This is my WEB.XML</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"&gt; &lt;filter&gt; &lt;filter-name&gt;struts2&lt;/filter-name&gt; &lt;filter-class&gt;org.apache.struts2.dispatcher.FilterDispatcher&lt;/filter-class&gt; &lt;/filter&gt; &lt;filter-mapping&gt; &lt;filter-name&gt;struts2&lt;/filter-name&gt; &lt;url-pattern&gt;/*&lt;/url-pattern&gt; &lt;/filter-mapping&gt; &lt;session-config&gt; &lt;session-timeout&gt; 30 &lt;/session-timeout&gt; &lt;/session-config&gt; &lt;welcome-file-list&gt; &lt;welcome-file&gt;register.jsp&lt;/welcome-file&gt; &lt;/welcome-file-list&gt; &lt;/web-app&gt; </code></pre>
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