Monthly Archives: June 2015

Android Studio Mac OSX Installation Error — NoClassDefFoundError: Could not initialize class javax.crypto.SunJCE_b

Today I decided to play with Android and build a simple app. I downloaded the latest version of Android Studio for Mac from the official website http://developer.android.com/sdk/index.html. As soon as I tried to install the Android Studio on my Mac book (OSX YoseMite 10.10.2) I was greeted with a weird error message as shown below.

Internal error. Please report to https://code.google.com/p/android/issues

java.lang.NoClassDefFoundError: Could not initialize class javax.crypto.SunJCE_b
at javax.crypto.KeyGenerator.a(DashoA13*..)
at javax.crypto.KeyGenerator.(DashoA13*..)
at javax.crypto.KeyGenerator.getInstance(DashoA13*..)

You get this error because you need to have Java 6 installed on your Mac. To get rid of this error, just download the Java from this link https://support.apple.com/kb/DL1572?locale=en_US. Once Java 6 is installed, open the Android Studio app again and you will be able to work with Android Studio 🙂

How to resize a Virtual Box virtual machine hard disk size

Today while working on a project I had to resize hard disk size of one of the virtual machines. The Windows virtual machine was created using veewee. To resize a VM hard disk size, you have to perform couple of steps:

1. Run the $ VBoxManage modifyhd ~/VirtualBox\ VMs/windows2008/windows20081.vdi –resize 20480 command.

2. Follow the steps mentioned in this post http://derekmolloy.ie/resize-a-virtualbox-disk/ to understand how you can use the gparted to allocate the unallocated space.

Writing Test Automation Framework for Installers

Last few weeks I have spent considerable time writing integration test suite for one of our product installers. The goal of this test suite is to automatically test functionality of the product on various operating systems. Currently, we are running our automated test suite on Windows 2008, Windows 7, and Windows 8 systems. In this blog, I will first talk about the technology stack that we used to build our automation framework and then I explain  how you can write such test suite using Java installer as an example. Continue reading