Why Does My Java Application Still Show 'Unable to Verify Server Certificate' After Importing the Certificate?

Unable to Verify Server Certificate: Troubleshooting and Resolution

Problem Description:

When attempting to establish a secure connection with a server using Java, an error message may be encountered: "unable to find valid certification path to requested target."

Possible Cause and Solution:

After importing the server's self-signed certificate into the cacerts trust store, the error persists. This suggests that the Glassfish server might not be accessing the correct cacerts file.

Troubleshooting Steps:

1. Set Debugging Properties: Execute the following command:

   java -Djavax.net.debug=all -Djavax.net.ssl.trustStore=trustStore ...

   Copy after login

   Replace "trustStore" with the actual filepath of the trust store that contains the server's certificate.

2. Examine Debug Output: Check the debug output for clues regarding which trust store is being used. Key words to look for include "TrustStore:" and "Certificate Chain."
3. Verify Trust Chain: Ensure that the server's certificate has a valid trust chain that extends to a trusted root certificate in the cacerts trust store.
4. Restart Server: Restart the Glassfish server after making any changes to the cacerts file or debugging properties.
5. Alternative Trust Store Location: Consider verifying that the Glassfish server is using the expected cacerts file location by checking the server's JVM startup arguments or configuration settings.

Additional Notes:

• The keystore contains the private key and certificate used by the server to verify its identity.
• The trust store contains certificates of trusted authorities that the client uses to verify the server's certificate.
• The server's certificate may need to be reimported into the correct cacerts file if the file was modified or the server was reconfigured.

The above is the detailed content of Why Does My Java Application Still Show 'Unable to Verify Server Certificate' After Importing the Certificate?. For more information, please follow other related articles on the PHP Chinese website!