Latest from the blog

How to read file in hexadecimal mode with vi

With the vim (vi enhanced version) it is possible to edit a file in hexadecimal mode.... Read More

How to find a Jar file from which a class is being loaded in server

Sometimes we cannot alter the classpath of the J2EE server or Web container and we need to find out if the classpath is loading a class from the right jar.... Read More

How to use maven just to copy dependencies

Maven is one of the best java applications used to build and deploy Java Projects but sometimes we may just need to use it to manage or download dependencies which is probably its best feature. In this example I'm using Linux Ubuntu to download several jars to a folder.... Read More

Linux Java Service Wrapper Example

This is a simple wrapper to run a Java program as service. You need to be a root user.... Read More

Ubuntu 16+ Java Service Wrapper Example for Systemd

This is a simple wrapper to run a Java program as service. You need to be a root user. In this example SYSTEMD is used instead of init.d because it's becoming obsolete. For older systems click here ... Read More

Generate Zebra ZPL from Image

With this application you can generate Ascci hex zpl representation for Zebra Printers. Upload you Image online and download de ZPL code.... Read More

Create ZPL online

The site has been moved here:... Read More

How to Monitor a Tomcat JDBC Connection pool from a Servlet Example

With this example you can find out  the active, idle  connections,  etc. from a tomcat connection pool. This is very useful to know if you are not closing all your connections or if you want to double check how the pool is working.... Read More