private static void testJDTCompile(String commandLine, String destination){
		CompilationProgress progress = null;
		BatchCompiler.compile(commandLine, new PrintWriter(System.out), new PrintWriter(System.err), progress);
		try {
			//FileOutputStream fos = new FileOutputStream("C:\\testing_compile\\bin\\com\\test\\InvoiceClass.class");
			System.out.println("destination: " + destination);
			FileOutputStream fos = new FileOutputStream(destination);
			fos.write(System.out.toString().getBytes());
			fos.flush();
			fos.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}