FileInputStream myFile = new FileInputStream("/home/..../workspace/..../myFile");

private InputStream openContentStream()
	{
		return this.getClass()
		.getResourceAsStream("/file path in my plugin package ");
	}

InputStream stream = openContentStream();
BufferedReader br = new BufferedReader(new InputStreamReader(stream));
         .....
stream.close();

File localPath = new File("/home/..../runtime-EclipseApplication/....");