Apache ActiveMQ 5.9 released

The Apache ActiveMQ team has just released the new ActiveMQ 5.9 release. This release is 8 months of hard work…

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All Other Metrics Are Useless

When it comes to queues, whether they’re implemented as JMS, database tables (i.e. what Ruby’s Delayed::Job uses for a queue),…

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Java 8: Definitive guide to CompletableFuture

Java 8 is coming so it’s time to study new features. While Java 7 and Java 6 were rather minor…

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Java EE 7: JMS 2.0 With Glassfish v4

Java EE 7 has been recently accepted by the Executive Committee. This means that soon we should have Java EE…

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Spring JMS, message automatic conversion, JMS template

In one of my projects I was supposed to create a message router that like all routers was supposed to…

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JMS and Spring: Small Things Sometimes Matter

JmsTemplate and DefaultMessageListenerContainer are Spring helpers for accessing JMS compatible MOM. Their main goal is to form a layer above…

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ActiveMQ Message Priorities: How it works

There’s usually a steady drip of questions on the mailing list surrounding ActiveMQ’s message-priority support as well as good questions…

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ActiveMQ Clustering, Durable Subscribers, and Virtual Topics to the rescue

So you want to do publish-subscribe with ActiveMQ across distributed topics and be reliable. You can just use durable subscriptions,…

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Implementing custom Future

Last time we learned the principles behind java.util.concurrent.Future<T>. We also discovered that Future<T> is typically returned by libraries or frameworks.…

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