“PKIX path building failed” and “unable to find valid certification path to requested target”

  1. Go to URL in your browser:
  • firefox – click on HTTPS certificate chain (the lock icon right next to URL address). Click "more info" > "security" > "show certificate" > "details" > "export..". Pickup the name and choose file type example.cer
  • chrome – click on site icon left to address in address bar, select “Certificate” -> “Details” -> “Export” and save in format “Der-encoded binary, single certificate”.
  1. Now you have file with keystore and you have to add it to your JVM. Determine location of cacerts files, eg. C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts.
  2. Next import the example.cer file into cacerts in command line (may need administrator command prompt):

keytool -import -alias example -keystore "C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts" -file example.cer

You will be asked for password which default is changeit

Restart your JVM/PC.

source: http://magicmonster.com/kb/prg/java/ssl/pkix_path_building_failed.html

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