Spring-boot + mail/Session JNDI resource = NoSuchBeanDefinitionException (JavaMailSender) - spring

Question

I've been struggling for a couple of days (and no progress) with the configuration of the mail/Session as a JNDI resource (declared on the Tomcat side), to be picked up by an spring-boot app. The idea is to avoid having any critical information in the application, such as user/password data.
(NOTE 1: Credentials and conection through SMTP have been tested, with an application side configuration, hard-coded in the application.properties, so that is not a problem).
The current configuration I'm using is the following:
server.xml ($TOMCAT/conf)
<Resource
name="mail/Session"
auth="Container"
type="javax.mail.Session"
username="user#test.com"
password="XXX"
mail.user="user#test.com"
mail.password="XXX"
mail.transport.protocol="smtp"
mail.smtp.host="smtp.test.com"
mail.smtp.auth="true"
mail.smtp.port="587"/>
context.xml (webapp/META-INF)
<Context>
<ResourceLink
name="mail/Session"
global="mail/Session"
auth="Container"
type="javax.mail.Session"/>
</Context>
application.properties
spring.mail.jndi-name=java:comp/env/mail/Session
In the pom.xml I have the spring-boot-starter-mail dependency (as well as other necessary dependencies). And the class in which I'm inyecting the JavaMailSender bean is this one (simplified):
(NOTE 2: The spring-boot version used is 1.2.8.RELEASE)
#Service("emailService")
public class EmailService {
#Autowired
public JavaMailSender javaMailSender;
public void sendSimpleMail(/* ... */) throws MessagingException {
//Create message
MimeMessage message = javaMailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(message);
helper.setFrom(fromAddress);
helper.setTo(toAddress);
helper.setSubject(subject);
helper.setText(body);
//Send message
javaMailSender.send(message);
}
}
I understand that spring-boot autoconfiguration should create the JavaMailSender bean once it finds either jndiName or host,port,username,password... spring.mail properties (the later works when I set host, port, username and pasword in application.properties), but it throws the following stack when I use the jndiName option:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'emailService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public org.springframework.mail.javamail.JavaMailSender com.testapp.service.EmailService.javaMailSender; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.mail.javamail.JavaMailSender] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1208)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:690)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322)
at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:135)
at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:126)
at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:82)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5240)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
... 10 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public org.springframework.mail.javamail.JavaMailSender com.testapp.service.EmailService.javaMailSender; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.mail.javamail.JavaMailSender] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 29 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.mail.javamail.JavaMailSender] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1301)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1047)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
... 31 more
I have a dataSource configured as a JNDI resource in the same way, and it works perfectly. Does the (mail)Session need a different aproach or am I missing something on it's configuration?

Answer 1

As #m-deinum pointed out in the comments, the problem wasn't the configuration, but the lack of JNDI support in spring-boot versions under 1.3.x
To solve the issue, I ended up heeding to #m-deinum's tip and upgrading spring-boot from 1.2.8 to 1.3.5... dealing with some deprecated classes and new configurations and ready to go!