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import java.util.Base64;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

public class ParseJWT {
    public staticString void mainparseServiceId(String[] argstoken) {
        // Assume token is passed or retrieved from headers
        String token = "your.jwt.token.here";
         // Split token into its parts
        String[] chunks = token.split("\\.");
        Base64.Decoder decoder = Base64.getUrlDecoder();

        // Decode payload
        String payload = new String(decoder.decode(chunks[1]));

        // Parse JSON using Gson
        JsonObject jsonObject = JsonParser.parseString(payload).getAsJsonObject();

        // Extract the client_id
        String clientId = jsonObject.get("client_id").getAsString();
        System.out.println("Client ID: " + clientId)return clientId;
    }
}