Self-signed certificate is not trusted during and after upgrade from 8.0 Platform Edition (PE) to 8.1 Enterprise Edition (EE) UR2. (ID 6296105)

Remove the following entries from the target domain.xml (after the upgrade) and restart the server:

<jvm-options>-Djavax.net.ssl.keyStore=${com.sun.aas.instanceRoot}
/config/keystore.jks</jvm-options>-
<jvm-options>Djavax.net.ssl.trustStore=${com.sun.aas.instanceRoot}
/config/cacerts.jks</jvm-options>