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A Journey of a Thousand Miles Begins with a Single Step

Validate Apache Maven SCM settings

To perform a release of your Maven Artifact, the pom.xml needs a SCM section. To validate or check if the SCM settings are correct, you can use the Maven goal:

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Setup SCR3311 for GnuPG on Linux

I have never documented how I setup above card reader for GnuPG smart cards. This article will fill the gap. I use my new setup elementary (Ubuntu/Debian) desktop as virtualization with VirtualBox.

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IntelliJ Regular Expression editor support

IntelliJ has the capability to use regular expressions to find and replace text source. This powerful feature simplifies your life.

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Emoji cheat sheet

Emoji are the ideograms or smileys used in Japanese electronic messages and Web pages, the use of which is spreading outside Japan. Originally meaning pictograph, the word emoji literally means “picture” (e) + “character” (moji). Using github, dokuwiki, there are available for content editing. Some of the emoji codes are not super easy to remember, so here is a little cheat sheet.

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Add JDBC driver to your classpath

If CLASSPATH exists; the driver is appended. For Windows:

SET ORACLE_JAR=C:\Data\lib\db\ojdbc6-11g.jar
SET CLASSPATH="%CLASSPATH%;%ORACLE_JAR%"
ECHO %CLASSPATH%
"C:\Data\lib\db\ojdbc6-11g.jar"

For Linux:

export ORACLE_JAR=/opt/lib/db/ojdbc6-11g.jar
export CLASSPATH="$ORACLE_JAR:$CLASSPATH"
# check setting
echo $CLASSPATH

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List usb devices in VirtualBox

If you want to test which USB ports and devices is capable of, you can use the VBoxManage command.

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CDI definition hell

As I had to give a training about Contexts and Dependency Injection for the Java EE Platform (CDI), I made a small graphic with Lucidchart about CDI.

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Health status symbols for Monitoring

Currently I work on visualizing the health of components, nodes and web-services. Therefore respective components expose their status with a health-check. For a Restful Webservice a simple ping request (simple GET with Status-code 200) is ok. A more advanced technique would be response with a brief summary of status and version. This status I want to illustrate with an appropriate symbol.

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Configure separate log messages in JBoss

To configure JBoss to log certain messages of log category (class) is a simple way. This post illustrates two ways to achieve it.

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