使用最新版本(2.10.0到3.1.0) Java DocuSignAPI的ClientHandlerException

import com.docusign.esign.client.ApiClient;
import com.docusign.esign.client.ApiException;
import com.docusign.esign.client.Configuration;
import com.docusign.esign.client.auth.OAuth;

public class DocuSignExample {
    public static void main(String[] args) {
        try {
            ApiClient apiClient = new ApiClient();
            apiClient.setBasePath("https://demo.docusign.net/restapi");
            Configuration.setDefaultApiClient(apiClient);

            OAuth.OAuthToken token = // 获取 OAuth Token 的逻辑

            apiClient.setAccessToken(token.getAccessToken(), token.getTokenType());

            // 发送签名请求的逻辑

        } catch (ApiException e) {
            System.err.println("Status code: " + e.getCode());
            System.err.println("Reason: " + e.getResponseBody());
            System.err.println("Response headers: " + e.getResponseHeaders());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import com.docusign.esign.api.EnvelopesApi;
import com.docusign.esign.model.EnvelopeDefinition;
import com.docusign.esign.model.Document;
import com.docusign.esign.model.Recipients;
import com.docusign.esign.model.Signer;
import com.docusign.esign.model.SignHere;

public class DocuSignExample {
    public static void main(String[] args) {
        try {
            EnvelopesApi envelopesApi = new EnvelopesApi();
            EnvelopeDefinition envelopeDefinition = new EnvelopeDefinition();

            Document doc = new Document();
            doc.setDocumentBase64("Base64 encoded document content");
            doc.setName("Example Document");
            doc.setDocumentId("1");

            envelopeDefinition.setDocuments(Collections.singletonList(doc));

            Signer signer = new Signer();
            signer.setEmail("signer@example.com");
            signer.setName("John Doe");
            signer.setRoutingOrder("1");

            SignHere signHere = new SignHere();
            signHere.setDocumentId("1");
            signHere.setPageNumber("1");
            signHere.setRecipientId("1");
            signHere.setXPosition("100");
            signHere.setYPosition("150");

            signer.setTabs(Collections.singletonList(signHere));

            Recipients recipients = new Recipients();
            recipients.setSigners(Collections.singletonList(signer));

            envelopeDefinition.setRecipients(recipients);
            envelopeDefinition.setStatus("sent");

            envelopesApi.createEnvelope("accountID", envelopeDefinition);

        } catch (ApiException e) {
            System.err.println("Status code: " + e.getCode());
            System.err.println("Reason: " + e.getResponseBody());
            System.err.println("Response headers: " + e.getResponseHeaders());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}