Error:javax.net.ssl.SSLHandshakeException Error?

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Connected with VPN to setup the inventory API to get product list and it works fine.

Once I get the result from the web-service and I bind to UI. And also I integrated PayPal with my application for make Express checkout when I make a call for payment I'm facing this error.

 I use servlet for back-end process. How to fix this issue?

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException:
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException:
unable to find valid certification path to requested target
May 21 in Java by kartik
• 27,140 points
244 views

1 answer to this question.

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Hello @kartik,

First, you need to obtain the public certificate from the server you're trying to connect to. That can be done in a variety of ways, such as contacting the server admin and asking for it, using OpenSSL to download it, or, since this appears to be an HTTP server, connecting to it with any browser, viewing the page's security info, and saving a copy of the certificate.

Now that you have the certificate saved in a file, you need to add it to your JVM's trust store. At $JAVA_HOME/jre/lib/security/ for JREs or $JAVA_HOME/lib/security for JDKs, there's a file named cacerts, which comes with Java and contains the public certificates of the well-known Certifying Authorities. To import the new cert, run keytool as a user who has permission to write to cacerts:

keytool -import -file <the cert file> -alias <some meaningful name> -keystore <path to cacerts file>

It will most likely ask you for a password. The default password as shipped with Java is changeit. Almost nobody changes it. 

Hope this is helpful!!

answered May 21 by Niroj
• 58,500 points

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