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Michael Vorburger
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excited to give a presentation at #Devoxx Ignite 2014 about my SMS Math learning prototype, slides here: https://docs.google.com/presentation/d/17czJQq2gMwgN65lVNyqWtpTz1VF24nmzEDETY9615Ak/edit
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How to profile performance and memory bottlenecks in Java using the Java Flight Recorder (JFR) from Java Mission Control (JMC)
This post is a permanent copy of the https://wiki.opendaylight.org/view/HowToProfilePerformance page (also created by me). That Wiki page may be more up to date than this initial version here. Or it may have disappeared by the time you find and read this (w...
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How to bulk upload (old) photos to Google on Linux
I had been meaning to bulk upload a lot of old family pictures to Google Photos, on Fedora Linux (but something like below should work on Ubuntu and other distributions as well). Here's how, thanks to #opensource  simonedegiacomi's gphotosuploader : sudo dn...
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see https://www.learn.study for more about our Minecraft server with the /make command you can use for custom story telling scripts written with Scratch!
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slf4j logging API miss use detection with findbugs-slf4j (and why a "A fool with a tool is still a fool")
One of the things I do for work on OpenDaylight is drive more automation for code quality. We regularly have "bad" log messages in ODL, where e.g. Java Exception stack traces don't get logged correctly (and thus make it hard to find e.g. the root cause of e...
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java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
When I first tried out to run my Eclipse IDE under the recently release Java 9, I just downloaded an OpenJDK 9 TGZ from  http://jdk.java.net/9/ (because on Fedora 26 there didn't seem to be an RPM package, yet; I'm sure this will come in Fedora 27). Eclipse...
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useful blog post by a Red Hat colleague:
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How to find Transaction related memory leaks in OpenDaylight
At work for Red Hat , currently on the Linux Foundation hosted software-defined networking (SDN) and network functions virtualization (NFV) OpenDaylight (ODL) platform , we package the code written collaboratively by the ODL open source community members (w...
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