Java HTTPS connection with SSL certificate Error

Question

I'm trying to use the SSL certificate obtained with StartSSL.com on an Apache server. The connection with browser is fine, but when I try to use a Java application, I got this exeption:

Exception in thread "main" 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

I don't understand what could be the problem, because with the browser, I got the SSL with green label.

Answer 1

The problem is your Java is not trusting the certificate. You have to import it to your java's truststore.

# Copy the certificate into the directory Java_home\Jre\Lib\Security
# Change your directory to Java_home\Jre\Lib\Security>
# Import the certificate to a trust store.
# Here's the import command:

keytool -import -alias ca -file somecert.cer -keystore cacerts -storepass changeit [Return]

Trust this certificate: [Yes]

changeit is default truststore password.

For every certificate that you imported into your truststore you have to provide a new alias.

The import method is a quote from Here