Shader Program Fatal Error

OpenGL Development
#1

Hello, I was wondering if someone could help fix a fatal error I receive with my shader program. It is a run-time error that is thrown by the glValidateProgram method. Here is my code:

public class ShaderProgram
{
	int objectID;
	int vertexShaderID;
	int fragmentShaderID;
	
	public void initialise()
	{
		loadShader("shaders/vertex.shader", GL_VERTEX_SHADER);
		loadShader("shaders/fragment.shader", GL_FRAGMENT_SHADER);
		
		objectID = glCreateProgram();
		
		glAttachShader(objectID, vertexShaderID);
		glAttachShader(objectID, fragmentShaderID);
		glLinkProgram(objectID);
		glBindAttribLocation(objectID, 0, "in_Position");
		glBindAttribLocation(objectID, 1, "in_Color");
		glBindAttribLocation(objectID, 2, "in_TextureCoord");
		glValidateProgram(objectID);
	}
	
	public void terminate()
	{
		glUseProgram(0);
		glDetachShader(objectID, vertexShaderID);
		glDetachShader(objectID, fragmentShaderID);
		glDeleteShader(vertexShaderID);
		glDeleteShader(fragmentShaderID);
		glDeleteProgram(objectID);
	}
	
	public void select()
	{
		glUseProgram(objectID);
	}
	
	public void deselect()
	{
		glUseProgram(0);
	}
	
	public int loadShader(String fileLocation, int type)
	{
		StringBuilder stringBuilder = new StringBuilder();
		int shaderID = 0;
		
		try
		{
			BufferedReader bufferedReader = new BufferedReader(new FileReader(fileLocation));
			String line;
			
			while((line = bufferedReader.readLine()) != null)
			{
				stringBuilder.append(line);
				stringBuilder.append("\n");
			}
			
			bufferedReader.close();
		}
		catch(IOException exception)
		{
			exception.printStackTrace();
		}
		
		shaderID = glCreateShader(type);
		
		glShaderSource(shaderID, stringBuilder);
		glCompileShader(shaderID);
		
		return shaderID;
	}
}