Tenho um método que ira salvar um registro no MySql
porem tenho o seguite problema:
javax.faces.FacesException: #{addressBook.save}: javax.faces.el.EvaluationException: /addressBook/form.xhtml @35,96 action="#{addressBook.save}": java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:63)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)
Meu faces-config:
<faces-config>
<managed-bean>
<managed-bean-name>addressBook</managed-bean-name>
<managed-bean-class>jvm.addressbook.actions.AddressBookBean</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>addressBookVo</managed-bean-name>
<managed-bean-class>jvm.addressbook.vo.AddressBookVo</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>addressBookDao</managed-bean-name>
<managed-bean-class>jvm.addressbook.dao.AddressBookDao</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<application>
<view-handler>com.sun.facelets.FaceletViewHandler</view-handler>
<message-bundle>messages</message-bundle>
</application>
</faces-config>
Action do meu bean com o método save:
private CrudDao<AddressBookVo, Long> addressBookDao;
public CrudDao<AddressBookVo, Long> getAddressBookDao() {
return addressBookDao;
}
public void setAddressBookDao(CrudDao<AddressBookVo, Long> addressBookDao) {
this.addressBookDao = addressBookDao;
}
public String save(){
if (addressBookVo.getId() == null) {
//LINHA ONDE OCORRE O ERRO
addressBookDao.save(addressBookVo);
addMessage("createSuccess");
} else {
addressBookDao.update(addressBookVo);
addMessage("updateSuccess");
}
return "def:form";
}
Minha interface:
public interface CrudDao<T extends Serializable, PK extends Serializable> {
Class<T> getEntityClass();
@Transactional(propagation=Propagation.REQUIRED)
T save(final T object);
}
Meu metodo no DAO Genérico:
public T save(T object) {
try {
this.getSession().save(object);
this.getSession().flush();
return object;
} catch (final HibernateException e) {
throw convertHibernateAccessException(e);
}
}
Ja verifiquei no objeto a ser salvado que os atributos estão todos vindo preenchidos,
mas mesmo assim o erro é ocasionado por um nullPointerException na linha save da action do meu bean,
colocando um breakpoint na linha que ocorre o erro de cara o método save vai para InvocationTargetException(parece algum problema
de reflexão)…Alguem ja passou por este problema??
obrigado.[]'s
