Error while sending sms using java with way2sms.com as getactionstring failed!

Hello sir,Thanks for reply,i get error from this method,
i get "getActionString failed!" error
private void getActionString()

{
URLConnector.connect("http://" + site + "/jsp/InstantSMS.jsp", false,
"GET", cookie, null);
responseCode = URLConnector.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_MOVED_TEMP
|| responseCode == HttpURLConnection.HTTP_OK) {
String str = URLConnector.getResponse();
String aStr = "name=\"Action\" id=\"Action\"";
int aStrLen = aStr.length();
int index = str.indexOf(aStr);
if (index > 0) {
str = str.substring(index + aStrLen);
index = str.indexOf("\"");
if (index > 0) {
str = str.substring(index + 1);
index = str.indexOf("\"");
if (index > 0)
actionStr = str.substring(0, index);
}
}
} else
exit("getActionString failed!");
URLConnector.disconnect();
}


//** i tried by changeing url to this
URLConnector.connect("http://" + site + "/main.action?Token=" + token, false,"GET", cookie, null);
now it is not showing that error but another error is there, that is Action string missing ,encoding error something it is....


it is when i callthis method from here..
private void sendSMS(String receiversMobNo, String msg)

{
getActionString();
credentials.reset();
credentials.set("HiddenAction", "instantsms");
credentials.set("t_15_k_5", random1);
credentials.append("catnamedis", "Birthday");

if (actionStr != null)
credentials.append("Action", actionStr);
else
exit("Action string missing!");
credentials.append("chkall", "on");
credentials.append(random1, token);
credentials.append("MobNo", receiversMobNo);
credentials.append("textArea", msg);
userCredentials = credentials.getUserCredentials();
//URLConnector.connect("http://" + site + "/main.action", true,"POST", cookie, userCredentials);//quicksms.action
URLConnector.connect("http://" + site + "/main.action?Token=" + token, true,"POST", cookie, userCredentials);
responseCode = URLConnector.getResponseCode();
..............}

thanks sir,for reply,
i'm getting->
name="Action" id="Action"
Encoding error
Action string missing!
->as error

the encoding error msg produced by following method..getUTF8String()

public class Credentials {
private ArrayList<string> list = new ArrayList<string>();

public void set(String name, String value) {
StringBuilder buffer = new StringBuilder();
buffer.append(name);
buffer.append("=");
buffer.append(getUTF8String(value));
add(buffer.toString());
}

public void append(String name, String value) {
StringBuilder buffer = new StringBuilder();
buffer.append("&");
buffer.append(name);
buffer.append("=");
buffer.append(getUTF8String(value));
add(buffer.toString());
}

private void add(String item) {
list.add(item);
}

private String getUTF8String(String value) {
String encodedValue = null;
try {
encodedValue = URLEncoder.encode(value, "UTF-8");
} catch (Exception exception) {
System.err.println("Encoding error");
}
return encodedValue;
}