Blog
Sending Emails with SMTP
Sunday, June 30, 2019
•
smtp
After setting up an email server, one way to test it, is connecting directly to port 25 (SMTP) and talking
to the server. Unlike in Simple dummy Mail Server for development in this
post, we’ll only use telnet
. Or we could also use netcat, also known
as the “Swiss Army Knife” of network tools.
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Hosting your own hidden onion service
Saturday, May 11, 2019
•
tor
onion
Running your own service in Tor under a Debian
based operating system is easy:
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Code quality assurance with PMD
Tuesday, April 30, 2019
•
pmd
Note: This is copy of my article that is unfortunately no longer available on the original web page.
Therefore I’m publishing it here again.
Internet Archive version: https://web.archive.org/web/20200923131746/https://www.datarespons.com/code-quality-assurance-with-pmd/
Download PDF-Version
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Raspberry Pi and JavaFX
Saturday, April 20, 2019
•
raspberry
java
javafx
Oracle provides a java build for ARM, which runs on the raspberry pi. However, this build doesn’t contain
JavaFX like the other java builds for Linux, Windows or MacOS. Luckily, there are prebuild binaries for
JavaFX for ARM, too: Community Builds.
I took the stable build from chriswhocodes.
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Spurious ClassNotFound Exception during maven builds
Sunday, January 13, 2019
•
maven
java
jenkins
I first observed this behavior on our build server running Jenkins. We have two build jobs, building
snapshot versions. Project A and B. Project B depends on A. Always dealing with snapshots. Jenkins ran
the standard mvn clean install
command. Now, when both jobs were running in parallel on Jenkins, sometimes project
B failed during compilation or running unit tests with weird ClassNotFound exceptions. The missing classes were
from project A, of course.
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