Prasann Grampurohit created WW-4825:
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Summary: NPE while using getText method from ActionSupport
Key: WW-4825
URL: https://issues.apache.org/jira/browse/WW-4825
Project: Struts 2
Issue Type: Bug
Components: Core
Affects Versions: 2.5.12
Reporter: Prasann Grampurohit
Hi,
I am migrating a project from Struts 2.3.3 to Struts 2.5.12 and I see
NullPointerException when using the getText method from ActionSupport class.
My action class extends ActionSupport class. I have package.properties file
also packaged in the war file.
And in my action class I just use getText method to retrieve a property from
package.properties file.
I see the below exception. Could you please help? Thank you.
ERROR DefaultDispatcherErrorHandler Exception occurred during processing
request: Unable to instantiate Action, entryAction, defined for 'entry' in
namespace '/'Error creating bean with name 'entryAction' defined in
"/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml":
Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Could not instantiate
bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw
exception; nested exception is java.lang.NullPointerException
Unable to instantiate Action, entryAction, defined for 'entry' in
namespace '/'Error creating bean with name 'entryAction' defined in
"/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml":
Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Could not instantiate
bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw
exception; nested exception is java.lang.NullPointerException - action -
vfs:/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/struts-default.xml:133:44
at
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)
at
com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)
at
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:204)
at
org.apache.struts2.factory.StrutsActionProxy.prepare(StrutsActionProxy.java:62)
at
org.apache.struts2.factory.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
at
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:567)
at
org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81)
at
org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:143)
at
io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at
io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at
io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:285)
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:264)
at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:175)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at
io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:792)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'entryAction' defined in
"/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml":
Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Could not instantiate
bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw
exception; nested exception is java.lang.NullPointerException
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:965)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:911)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1075)
at
com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:159)
at
com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:172)
at
com.opensymphony.xwork2.factory.DefaultActionFactory.buildAction(DefaultActionFactory.java:22)
at
com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:137)
at
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:299)
... 37 more
Caused by: org.springframework.beans.BeanInstantiationException: Could not
instantiate bean class [my.company.member.web.action.entry.EntryAction]:
Constructor threw exception; nested exception is java.lang.NullPointerException
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:958)
... 48 more
Caused by: java.lang.NullPointerException
at
com.opensymphony.xwork2.ActionSupport.getTextProvider(ActionSupport.java:278)
at com.opensymphony.xwork2.ActionSupport.getText(ActionSupport.java:83)
at my.company.member.web.action.MyAction.<init>(MyAction.java:95)
at
my.company.member.web.action.entry.EntryAction.<init>(EntryAction.java:22)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
... 50 more
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