Use the keytool located in \Program Files\AdoptOpenJRE\jdk8uXXX-b10-jre\bin to view the certificates in the keystore and check for valid information i.e. host names, CA Root and Intermediaries, etc.
This will list the certificates and their alias from the keystore.
keytool -list -v -keystore pathto\.keystore
You can remove a certificate with the keytool
keytool -delete -alias CertAlias -keystore .keystore