Scheduling Voxxed Days Zurich 2018 with OptaPlanner

My name is Mario Fusco and I’m honored to be the Program Committee Lead of Voxxed Days Zurich for the third year in a row. Reading, evaluating, discussing, and selecting from the 200+ proposals that arrive every year is a long and challenging process. I must admit, I largely underestimated the task the first year I started doing it. It’s necessary to evaluate not only the quality of every submission, but also how they fit together. In the end, the worst part is having to reject so many incredible proposals because there are a limited number of slots.

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Cloud-native development with Microprofile 1.2

The purpose of this blog post is to provide an overview of the APIs and specifications in the Eclipse Microprofile 1.2 release. In particular, I’ll try to connect these specifications and APIs with their architectural purpose. Where do they fit and why? If you’re thinking of moving your Java application to the cloud, then this post might be for you.

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JUnit 5 support lands in Eclipse Vert.x for testing asynchronous operations

JUnit 5 is a rewrite of the famous Java testing framework that brings new interesting features, including:

  • nested tests,
  • the ability to give a human-readable description of tests and test cases,
  • a modular extension mechanism that is more powerful than the JUnit 4 runner mechanism (@RunWith annotation),
  • conditional test execution,
  • parameterized tests, including from sources such as CSV data,
  • the support of Java 8 lambda expressions in the reworked built-in assertions API,
  • support for running tests previously written for JUnit 4.

Testing asynchronous operations is not straightforward

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Structured application logs in OpenShift

Logs are like gold dust. Taken alone they may not be worth much, but put together and worked by a skillful goldsmith they may become very valuable. OpenShift comes with The EFK stack: Elasticsearch, Fluentd, and Kibana. Applications running on OpenShift get their logs automatically aggregated to provide valuable information on their state and health during tests and in production.

The only requirement is that the application sends its logs to the standard output. OpenShift does the rest. Simple enough!

In this blog I am covering a few points that may help you with bringing your logs from raw material to a more valuable product.

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Enabling Byteman Script with Red Hat JBoss Fuse and AMQ – Part 2

In my previous article, Enabling Byteman Script with Red Hat JBoss Fuse and AMQ – Part 1, we found a basic use-case for Byteman scripts with Red Hat JBoss Fuse or Red Hat JBoss AMQ. However, the log file was generated separately and only limited operations were possible. In this article I will show you how to use a Java helper class. By using Java, we get advanced operations to view or modify the content. Also, using java.util.logging allows us to log the statements to fuse.log, avoiding the creation of any other log file.

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