Is there a java setting for disabling certificate validation?

Use cli utility keytool from java software distribution for import (and trust!) needed certificates

Sample:

1. From cli change dir to jre\bin

2. Check keystore (file found in jre\bin directory)
   keytool -list -keystore ..\lib\security\cacerts
   Enter keystore password: changeit

3. Download and save all certificates chain from needed server.

4. Add certificates (before need to remove "read-only" attribute on file "..\lib\security\cacerts") keytool -alias REPLACE_TO_ANY_UNIQ_NAME -import -keystore ..\lib\security\cacerts -file "r:\root.crt"

accidentally I found such a simple tip. Other solutions require the use of InstallCert.Java and JDK

source: http://www.java-samples.com/showtutorial.php?tutorialid=210

Not exactly a setting but you can override the default TrustManager and HostnameVerifier to accept anything. Not a safe approach but in your situation, it can be acceptable.

Complete example : Fix certificate problem in HTTPS

-Dcom.sun.net.ssl.checkRevocation=false