returns true if the environment is configured to ipv6 . i.e. values of the relevant system properties are following : java.net.preferipv4stack = false java.net.preferipv6addresses = true concode_field_sep Logger LOGGER concode_elem_sep boolean PREFER_IPV6_ADDR concode_elem_sep boolean PREFER_IPV4_STACK concode_field_sep void assumeEjbKerberosAuthenticationSupported concode_elem_sep void assumeKerberosAuthenticationSupported concode_elem_sep boolean isIPv6Hostname concode_elem_sep void assumeCLIKerberosAuthenticationSupported
boolean function ( ) { return ! PREFER_IPV4_STACK && PREFER_IPV6_ADDR ; }