Description of problem:
When connecting to a https server, if the certificate is not in keystore, it will fail with exception:
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

Version-Release number of selected component (if applicable):
3.4.0-

How reproducible:
Always

Steps to Reproduce:
1. Make a self signed certificate and deploy to a test server
2. Try to connect to it using zanata client

Actual results:
SSLHandshakeException

Expected results:
Prompt the server certificate digest etc and ask if the user trust it and willing to add it to the keystore (maybe password protected). If user agrees then import the certificate chain to the store.

Additional Information:
Code sample that may be borrowed: 
https://code.google.com/p/java-use-examples/source/browse/trunk/src/com/aw/ad/util/InstallCert.java

Additional info: