(LWJGL) Shader not working and GL context problems

I’m following the LWJGL shader tutorial http://wiki.lwjgl.org/wiki/GLSL_Shaders_with_LWJGL and the code isn’t working correctly. I tried moving around shader files and I still get

java.lang.RuntimeException: No OpenGL context found in the current thread.
	at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
	at org.lwjgl.opengl.ARBShaderObjects.glDeleteObjectARB(ARBShaderObjects.java:63)
	at com.pong.main.Box.createShader(Box.java:124)
	at com.pong.main.Box.<init>(Box.java:37)
	at com.pong.main.a.<init>(a.java:20)
	at com.pong.main.a.main(a.java:72)

Main Class (renamed a) http://pastebin.com/4ueWTJLJ
Box class http://pastebin.com/XFZVxBSj