LWJGL: Getting a "Unrecognized profile specifier "mediump" fragment shader error

Newbie & Debugging Questions
#1

Here’s the fragment shader code:

		this.fragmentShaderCode = ""
				+ "precision mediump float;\n"
				+ "\n"
				+ "uniform sampler2D u_tex;\n"
				+ "uniform vec3 u_color;\n"
				+ "\n"
				+ "varying vec2 v_texcoord;\n"
				+ "\n"
				+ "void main(){\n"
				+ "		vec4 color = texture2D(u_tex, v_texcoord);\n"
				+ "		color = vec4(1.0, 0.0, 1.0, 1.0);\n"
				+ "		if (color.a>0.0){\n"
				+ "			gl_FragColor = color*u_color;\n"
				+ "		} else {\n"
				+ "			discard;\n"
				+ "		}\n"
				+ "}\n"
				+ "\n"
				+ "\n";

And here’s the error dump:

Anyone knows what’s going on?