Node cannot re-join cluster after restart if ASYM_ENCRYPT used in JGroups stack

Issue

• With two servers running in a domain, at the first startup the 2nd node joins the cluster successfully.
  After restarting any node in the cluster, via the CLI, the node is no longer able to re-join the cluster.
  • If ASYM_ENCRYPT is commented out from the JGroups stack, in the domain.xml, the restart works i.e. node successfully joins

JGroups snippet

            <subsystem xmlns="urn:jboss:domain:jgroups:4.0">
                <channels default="ee">
                    <channel name="ee" stack="tcpping"></channel>
                </channels>
                <stacks>
                    <stack name="tcpping">
                     .. .. ..
                        <protocol type="VERIFY_SUSPECT"></protocol>
                        <protocol type="ASYM_ENCRYPT">
                            <property name="encrypt_entire_message">true</property>
                            <property name="sym_keylength">128</property>
                            <property name="sym_algorithm">AES/ECB/PKCS5Padding</property>
                            <property name="asym_keylength">512</property>
                            <property name="asym_algorithm">RSA</property>
                        </protocol>
                        <protocol type="pbcast.NAKACK2"></protocol>
                        <protocol type="UNICAST3"></protocol>
                        <protocol type="pbcast.STABLE"></protocol>
                        <protocol type="AUTH">
                            <property name="auth_class">org.jgroups.auth.MD5Token</property>
                            <property name="auth_value">change_it_soon</property>
                            <property name="token_hash">MD5</property>
                        </protocol>
                        <protocol type="pbcast.GMS"></protocol>
                     .. .. ..
                    </stack>