We were using java 8 version 65 and we started getting this error with our webstart program. We tried upgrading to java 8 version 161 but that did not fix the issue.
java.lang.SecurityException: Can not verify security pack jar
at com.sun.deploy.util.SecurityBaseline.verifyJar(Unknown Source)
at com.sun.deploy.util.SecurityBaseline.access$200(Unknown Source)
at com.sun.deploy.util.SecurityBaseline$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)