Unable to Find Valid Certification Path to Requested Target


Error 1303 typically appears when there is something amiss with the certificate configuration on a client machine, making it essential to understand its significance and how best to overcome it.

The Certification Path API contains basic classes to encode and represent certification paths. A certification path consists of an ordered series of certificates starting with an issuer public key certificate to reach an ultimately trusted CA (or trust anchor), supported by an instance of CertPathValidator to validate the path.


Error “Unable to Locate Valid Certification Path to Requested Target” occurs when Java tries to connect to a secured website, possibly due to invalid certificate configuration on client machines or network issues, and when trying to use third-party libraries that access APIs via SSL.

This issue usually stems from an untrustworthy server you are trying to connect to, such as one using self-signed certificates or expired certificates; when this occurs, web browsers typically warn users about insecure sites.

To rectify this problem, add the server certificate to your Java trust store directly through Portecle or import it now. Also, ensure the certificate chain is complete and validated – once this is done, you should no longer experience issues with not finding valid certification paths to request servers.

The error should be resolved.

Another frequent cause of this error is when root or intermediate certificates are missing from the Java trust store, preventing Java from establishing an SSL connection with a server. To fix this, add these certificates back into the Java trust store.

Error 7 can also occur due to misconfiguration of your root certificate on your machine, in which case manual installation for the server may be necessary to resolve it. You should also ensure that the SSL certificate does not expire and that the server name matches the hostname on the certificate to avoid man-in-the-middle attacks such as entering the hostname into the commonName and subjectAltName (SAN) fields on leaf certificates help avoid redirecting you away to an alternate website by malicious servers that would otherwise take control.


Error “Unable to Locate Valid Certification Path to Requested Target” occurs when making a secure connection to a server using Java runtime errors, typically caused by self-signed certificates or expired ones, making troubleshooting difficult due to the hard-to-d pinpoint causes of the error.

To resolve this issue, the first step should be confirming that the certificate is valid and has a proper chain. You can do this using OpenSSL to examine it closely; otherwise, you’ll need to contact the server administrator for new ones if yours are invalid. Otherwise, you could import them into Java’s trust store so Java recognizes them when connecting to that server.

Another potential cause for this error could be that the hostname does not match that listed on your certificate, which can be rectified by verifying whether your code matches that in your certificate and checking firewall settings to make sure incoming connections do not get blocked.

Error 519 occurs frequently when trying to connect to websites using SSL encryption. This indicates that your computer doesn’t trust the certificate, typically because it has expired or lacks a root CA certificate. You can resolve this by verifying it using OpenSSL or adding it to your trust store.

Error messages like this can be frustrating because they limit your use of websites or services, making life more complicated than necessary. Therefore, any issues with them must be promptly rectified so you can continue using the service in question. If this error persists for too long, contact your service provider to pinpoint its source – although sometimes upgrades to Java runtime or network configuration changes might provide solutions.


Error 33268 occurs when Java Framework attempts to connect to an SSL encrypted service but fails, typically due to not finding valid certification paths or invalid certificates. This could happen for various reasons, most frequently when an SSL service’s certificate doesn’t belong in its list of trusted certificates – either because it wasn’t issued from a root or intermediate certificate authority trusted by the Java framework or is invalid otherwise.

Troubleshooting an error that occurs under various scenarios is often challenging, as its source could vary widely. An SSL connection could have been made during a package build or automated deployment process, or an error in an endpoint’s parent certificate, such as expired or invalid dates, should cause problems; should that occur, reach out to the organization responsible and request them to update it immediately.

An additional source of this error occurs when a Java application attempts to access a secured service, and the certificate presented by the server does not match up with the hostname in the URL. This can be resolved by verifying that the certificate in Trust Store matches the hostname in the URL; cert util’s DER encoded binary generator tool or manually adding it directly can accomplish this goal.

Finally, this error may also be caused by issues with Java runtime. This might occur if the version of Java running on the machine is too old and doesn’t recognize the certificate authority that issued the certificate in question. Importing or creating custom trust stores are two options to resolve the problem; you could also temporarily disable certificate validation; however, this should only be done during testing environments as this exposes your app to potential security risks.


If you encounter the error “Unable to Find Valid Certification Path to Requested Target,” this could indicate that the certificates presented by an SSL endpoint do not match. To resolve this, check that your hostname matches what’s written on their certificate and ensure they come from a reputable CA. If that fails, contact them directly and request they update their credentials.

Error 405, “unable to find valid certification path,” occurs frequently when making secure connections to SSL/TLS servers, usually due to self-signed certificates or certificate chains that don’t exist in Java’s trust store. Either import the server certificate into this trust store or disable certificate validation within your application to remedy this.

If you are experiencing this problem, use the tips in this article to troubleshoot and connect to an SSL server. Alternatively, contacting your server administrator might also help. We wish you good luck!