Sending jms message causes warning - wildfly-10

Question

when sending a message through a JMS topic, I often get the following warning:
2016-07-22 14:32:02,418 WARN [org.apache.activemq.artemis.jms.client] (Finalizer) AMQ122000: I''m closing a JMS connection you left open. Please make sure you close all JMS connections explicitly before letting them go out of scope! see stacktrace to find out where it was created: java.lang.Exception
at org.apache.activemq.artemis.jms.client.ActiveMQConnection.<init>(ActiveMQConnection.java:155)
at org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:750)
at org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createContext(ActiveMQConnectionFactory.java:255)
at org.wildfly.extension.messaging.activemq.deployment.JMSContextProducer$JMSContextWrapper.create(JMSContextProducer.java:195)
at org.wildfly.extension.messaging.activemq.deployment.JMSContextProducer$JMSContextWrapper.getDelegate(JMSContextProducer.java:235)
at org.wildfly.extension.messaging.activemq.deployment.JMSContextProducer$JMSContextWrapper.createProducer(JMSContextProducer.java:270)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:236)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:395)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:202)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
My code:
#Inject
#JMSConnectionFactory("java:/ConnectionFactory")
private JMSContext context;
#Resource(lookup = "java:/jms/topic/MyTopic", type = Long.class)
private Topic topic;
public void sendMessage(Event event) {
try {
context.createProducer().send(topic, 1L);
} catch (Exception e) {;
log.error("Error while sending message to the JMS topic. Will retry later.", e);
}
}
Any idea? I couldn't find anything on google yet.
According to JMSContext javadoc, the connection should be automatically closed when it's managed by the application server.

Answer 1

I think the message clearly explains the problem. Probably you just need to call close() or some sort on the producer you created.
Edit:
Actually, it is not the produced that needs closing, but the context.
From the doc (https://docs.oracle.com/javaee/7/api/javax/jms/JMSContext.html):
All these JMSContext objects are application-managed and must be
closed when no longer needed by calling their close method.
About the producer, it says (https://docs.oracle.com/javaee/7/api/javax/jms/JMSProducer.html):
Instances of JMSProducer are intended to be lightweight objects which
can be created freely and which do not consume significant resources.
This interface therefore does not provide a close method.