diff --git a/src/testcase/twitter/OAuthHeader.java b/src/testcase/twitter/OAuthHeader.java
deleted file mode 100644
index c16ea94..0000000
--- a/src/testcase/twitter/OAuthHeader.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package testcase.twitter;
-
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-import java.io.UnsupportedEncodingException;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.net.URLEncoder;
-import java.util.Map.Entry;
-import java.util.SortedMap;
-import java.util.TreeMap;
-
-import javax.crypto.Mac;
-import javax.crypto.spec.SecretKeySpec;
-
-import sun.misc.BASE64Encoder;
-
-public class OAuthHeader {
-	private String consumer_key = "";
-	private String consumer_secret = "";
-	private String oauth_token = "";
-	private String oauth_secret = "";
-	private String method = "POST";
-	private String url = "https://api.twitter.com/oauth/request_token";
-	private SortedMap<String, String> params = new TreeMap<String, String>();
-
-	public static void main(String[] args) throws Exception {
-		// OAuth�ɂ����ė��p����ϐ��錾
-		String consumerkey = "xPk6o11catewYwxGcXvvvqo2I";
-		String consumerSecret = "P9oXQstrFURXcbV8qT4OJzLjNfgYkpo1AvJzUnbywsEiDpuytb";
-		String oauthToken = "E7D28QAAAAAA9Im2AAABaCZ6YNc";
-		String oauthTokenSecret = "zdhnHCamrW3jLSb3GbwhVlnmJZsOqX1V";
-		String method = "POST";
-		String urlStr = "https://api.twitter.com/oauth/access_token";
-
-		// ���ʃp�����[�^�[
-		SortedMap<String, String> params = new TreeMap<String, String>();
-		params.put("oauth_consumer_key", consumerkey);
-		params.put("oauth_signature_method", "HMAC-SHA1");
-		params.put("oauth_timestamp", String.valueOf(getUnixTime()));
-		params.put("oauth_nonce", String.valueOf(Math.random()));
-		params.put("oauth_version", "1.0");
-		params.put("oauth_token", oauthToken);
-
-		// �A�N�Z�X�g�[�N���擾���ɂ̂ݗ��p����p�����[�^�[
-		// �A�v���P�[�V�����̋��‚������ꍇ�ɕ\�������Ïؔԍ���ݒ肷��
-		params.put("oauth_verifier", "�Ïؔԍ�");
-
-		{
-			/*
-			 * �����ioauth_signature�j�̐���
-			 * ���N�G�X�g�g�[�N���擾���ƑS����������
-			 */
-			String paramStr = "";
-			for (Entry<String, String> param : params.entrySet()) {
-				paramStr += "&" + param.getKey() + "=" + param.getValue();
-			}
-			paramStr = paramStr.substring(1);
-
-			String text = method + "&" + urlEncode(urlStr) + "&"
-					+ urlEncode(paramStr);
-
-			String key = urlEncode(consumerSecret) + "&"
-					+ urlEncode(oauthTokenSecret);
-
-			SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(),
-					"HmacSHA1");
-			Mac mac = Mac.getInstance(signingKey.getAlgorithm());
-			mac.init(signingKey);
-			byte[] rawHmac = mac.doFinal(text.getBytes());
-			String signature = new BASE64Encoder().encode(rawHmac);
-
-			params.put("oauth_signature", signature);
-		}
-
-		/*
-		 * Authorization�w�b�_�̍쐬��API�̌Ăяo��
-		 * ���N�G�X�g�g�[�N���擾���ƑS����������
-		 */
-		// Authorization�w�b�_�̍쐬
-		String paramStr = "";
-		for (Entry<String, String> param : params.entrySet()) {
-			paramStr += ", " + param.getKey() + "=\""
-					+ urlEncode(param.getValue()) + "\"";
-		}
-		paramStr = paramStr.substring(2);
-		String authorizationHeader = "OAuth " + paramStr;
-
-		// API�ɃA�N�Z�X
-		URL url = new URL(urlStr);
-		HttpURLConnection connection = (HttpURLConnection) url.openConnection();
-		connection.setRequestMethod(method);
-		connection.setRequestProperty("Authorization", authorizationHeader);
-		connection.connect();
-		BufferedReader reader = new BufferedReader(new InputStreamReader(
-				connection.getInputStream()));
-		String response;
-		while ((response = reader.readLine()) != null) {
-			System.out.println(response);
-		}
-	}
-
-	private static int getUnixTime() {
-		return (int) (System.currentTimeMillis() / 1000L);
-	}
-
-	private static String urlEncode(String string) {
-		try {
-			return URLEncoder.encode(string, "UTF-8");
-		} catch (UnsupportedEncodingException e) {
-			throw new RuntimeException(e);
-		}
-	}
-}