SunCertPathBuilderException: unable to find validcertification path to requested

package example.codes;

import java.io.BufferedReader;

import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.file.Files;

import javax.net.ssl.HttpsURLConnection;

public class CreateAndSendPackageRest {

	public static void main(String[] args) throws MalformedURLException, IOException {

		HttpsURLConnection connection = null;

		String requestURL = "https://sandbox.esignlive.com/api/packages";
		String apiKey = "api_key";
		String charset = "UTF-8";
		File uploadFile1 = new File("C:/Users/hhaidary/Desktop/PDFs/doc1.pdf");
		String boundary = Long.toHexString(System.currentTimeMillis());
		String CRLF = "\r\n"; // Line separator used in multipart/form-data.
		String jsonContent = "{\"roles\":[{\"locked\":false,\"emailMessage\":{\"content\":\"\"},\"attachmentRequirements\":[],\"reassign\":false,\"specialTypes\":[],\"id\":\"Sender\",\"data\":null,\"type\":\"SIGNER\",\"index\":0,\"signers\":[{\"auth\":{\"challenges\":[],\"scheme\":\"NONE\"},\"company\":\"Silanis\",\"firstName\":\"yourFirst\",\"lastName\":\"yourLast\",\"phone\":\"\",\"email\":\"[email protected]\",\"knowledgeBasedAuthentication\":null,\"language\":\"en\",\"title\":\"Silanis\",\"external\":null,\"professionalIdentityFields\":[],\"userCustomFields\":[],\"delivery\":{\"email\":true,\"provider\":false,\"download\":true},\"group\":null,\"signature\":null,\"address\":null,\"data\":null,\"name\":\"\",\"specialTypes\":[]}],\"name\":\"Sender\"},{\"locked\":false,\"emailMessage\":{\"content\":\"\"},\"attachmentRequirements\":[],\"reassign\":false,\"specialTypes\":[],\"id\":\"Signer\",\"data\":null,\"type\":\"SIGNER\",\"index\":0,\"signers\":[{\"auth\":{\"challenges\":[],\"scheme\":\"NONE\"},\"company\":\"\",\"firstName\":\"signerFirst\",\"lastName\":\"signerLast\",\"phone\":\"\",\"email\":\"[email protected]\",\"knowledgeBasedAuthentication\":null,\"language\":\"en\",\"title\":\"\",\"external\":null,\"professionalIdentityFields\":[],\"userCustomFields\":[],\"delivery\":{\"email\":false,\"provider\":false,\"download\":false},\"group\":null,\"id\":\"Signer\",\"signature\":null,\"address\":null,\"data\":null,\"name\":\"\",\"specialTypes\":[]}],\"name\":\"Signer\"}],\"documents\": [{\"approvals\":[{\"role\":\"Signer\",\"signed\":null,\"accepted\":null,\"data\":null,\"fields\":[{\"page\":0,\"subtype\":\"FULLNAME\",\"width\":200,\"binding\":null,\"extract\":false,\"extractAnchor\":null,\"left\":175,\"top\":165,\"validation\":null,\"height\":50,\"data\":null,\"type\":\"SIGNATURE\",\"value\":\"\"}],\"name\":\"\"},{\"role\":\"Sender\",\"signed\":null,\"accepted\":null,\"data\":null,\"fields\":[{\"page\":0,\"subtype\":\"FULLNAME\",\"width\":200,\"binding\":null,\"extract\":false,\"extractAnchor\":null,\"left\":550,\"top\":165,\"validation\":null,\"height\":50,\"data\":null,\"type\":\"SIGNATURE\",\"value\":\"\"}],\"name\":\"\"}],\"name\": \"sampleAgreement\"}],\"name\": \"Test Package REST\", \"type\":\"PACKAGE\", \"language\":\"en\", \"emailMessage\":\"\", \"description\":\"New Package\",\"autoComplete\":true,\"status\":\"SENT\"}";

		URL url = new URL(requestURL);
		connection = (HttpsURLConnection) url.openConnection();
		connection.setDoOutput(true);
		connection.setDoInput(true);
		connection.setRequestMethod("POST");
		connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
		connection.setRequestProperty("Authorization", "Basic " + apiKey);
		connection.setRequestProperty("Accept", "application/json; esl-api-version=11.0");
		OutputStream output = connection.getOutputStream();
		PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true);

		try {

			// Add pdf file.
			writer.append("--" + boundary).append(CRLF);
			writer.append("Content-Disposition: form-data; name=\"file\"; filename=\"" + uploadFile1.getName() + "\"")
					.append(CRLF);
			writer.append("Content-Type: " + URLConnection.guessContentTypeFromName(uploadFile1.getName()))
					.append(CRLF);
			writer.append("Content-Transfer-Encoding: application/pdf").append(CRLF);
			writer.append(CRLF).flush();
			Files.copy(uploadFile1.toPath(), output);
			output.flush();
			writer.append(CRLF).flush();

			// add json payload
			writer.append("--" + boundary).append(CRLF);
			writer.append("Content-Disposition: form-data; name=\"payload\"").append(CRLF);
			writer.append("Content-Type: application/json; charset=" + charset).append(CRLF);
			writer.append(CRLF).append(jsonContent).append(CRLF).flush();

			// End of multipart/form-data.
			writer.append("--" + boundary + "--").append(CRLF).flush();
		} catch (IOException ex) {
			System.err.println(ex);
		}

		// get and write out response code
		int responseCode = ((HttpURLConnection) connection).getResponseCode();
		System.out.println(responseCode);

		if (responseCode == 200) {

			// get and write out response
			BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
			String inputLine;
			StringBuffer response = new StringBuffer();

			while ((inputLine = in.readLine()) != null) {
				response.append(inputLine);
			}
			in.close();

			// print result
			System.out.println(response.toString());

		} else {

			// get and write out response
			BufferedReader in = new BufferedReader(new InputStreamReader(connection.getErrorStream()));
			String inputLine;
			StringBuffer response = new StringBuffer();

			while ((inputLine = in.readLine()) != null) {
				response.append(inputLine);
			}
			in.close();

			// print result
			System.out.println(response.toString());

		}
	}
}

Hello, I am getting same error when I am initiating REST service from Pega. Do I need to install any certificate? Link give above by Harish is not opening now, seems URl has changed. Can anyone help me with it?

Exceptioncom.pega.pegarules.pub.services.ConnectorException: Caught unhandled exception: java.lang.RuntimeException: javax.net.ssl.SSLHandshakeException: com.ibm.jsse2.util.h: PKIX path building failed: com.ibm.security.cert.IBMCertPathBuilderException: unable to find valid certification path to requested target

Hi Shashikant,

You can find and download the latest leaf certificates for all environments in this document, or simply download the root certificate "GlobalSign Root CA -R3", here. Let me know if this solved the exception.

Duo