Unable To Find Valid Certification Path To Requested Target – Error Even After Cert Imported

The "Unable to find valid certification path to requested target" error typically occurs when the Java application is unable to establish a secure connection to the server due to an invalid or untrusted SSL certificate.

Here are some possible solutions for this issue:

  1. Import the server’s SSL certificate into the Java keystore:

    • Obtain the server’s SSL certificate (e.g., from the website’s HTTPS connection).
    • Import the certificate into the Java keystore using the keytool command-line tool.
      $ keytool -import -alias [alias] -file [path/to/certificate.crt] -keystore [path/to/keystore.jks]
      
    • Make sure to provide the correct alias, path/to/certificate.crt, and path/to/keystore.jks values.
    • Restart the Java application to pick up the updated keystore.
  2. Use the javax.net.ssl.trustStore system property:

    • If you don’t want to modify the default Java keystore, you can specify an alternate keystore that contains the trusted certificates.
      $ java -Djavax.net.ssl.trustStore=[path/to/keystore.jks] [MainClass]
      
    • Again, provide the correct path/to/keystore.jks value for your specific case.
    • This approach is useful when you don’t have permission to modify the default Java keystore or want to isolate your application’s trusted certificates.
  3. Disable certificate validation (not recommended for production use):

    • If you’re in a testing or development environment, you can disable certificate validation altogether.
    • Add the following code before establishing the connection (not suitable for production):
      // Create a custom SSL context with a TrustManager that trusts all certificates
      SSLContext sc = SSLContext.getInstance("TLS");
      sc.init(null, new TrustManager[] { new X509TrustManager() {
          public void checkClientTrusted(X509Certificate[] arg0, String arg1) {}
          public void checkServerTrusted(X509Certificate[] arg0, String arg1) {}
          public X509Certificate[] getAcceptedIssuers() { return null; }
      }}, new SecureRandom());
      
      // Set the custom SSL context as the default for HTTPS connections
      HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
      
      // Disable hostname verification
      HttpsURLConnection.setDefaultHostnameVerifier((arg0, arg1) -> true);
      
    • This solution completely bypasses SSL certificate validation, so use it with caution and only in non-production environments.

Note: Ensure that you are importing the correct certificate into the keystore and that you are specifying the correct keystore and alias in your application.

If none of the above solutions work or if you’re still facing issues, provide more details about your specific scenario for further assistance.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!