Java on mac – how to package up a simple pojo into a macosx.app application

It’s simple to turn your Java Swing program (.jar) into a proper macOS application with a native installer.  The instructions below step you through the process from scratch with a sample program, which simply moves the mouse around the screen.  This step-by-step tutorial that can be easily completed by a beginner level developer.  1) Install […]

sqldeveloper on mac fails to run with newer osX versions

The problem is that the launcher scripts from oracle in the packaged version of sqldeveloper for macosx come with syntax that assumes that there are no spaces in the path to the jdk. However, in the newer versions of maxosx, these are defaulted under a folder location like this: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home (this location is discoverable […]

Convert Oracle VirtualBox Appliance .ova file to KVM .qcow2 file format

Original Article The Open Virtualization Format (OVF) is an open standard for packaging and distributing virtual appliances for the use in virtual machines. An OVA file is a one file alternative to pack a multi file OVF directory. This is a short example how to convert OVA for the use in a proxmox 2.0 KVM […]

Show REFCURSOR resultset without knowing the SQL statement structure, when passed as an outbound parameter

The fastest way to see the structure of a resultset from a refcursor that is passed out of an Oracle PL/SQL function without reviewing the internal code that created and opened that cursor. Sometimes there are reasons to review the outbound cursor structure visually, like when the package body is obfuscated, or when the sql […]

How to grow a file system with Oracle Linux 6, Vision R12.2.8, using Antsle antlet from vbox appliance.

The bulk of this was found originally on the web at: How to grow a file system with Oracle Linux 6, authored by the admin of that site. Before using the steps to grow the logical volume, it was necessary to increase the size of the virtual disk that resulted from importing the appliance into […]