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I've noticed that I cannot use the following as I did in 6.2

<%@ taglib uri="http://liferay.com/tld/theme" prefix="liferay-theme" %><%@taglib uri="http://liferay.com/tld/portlet" prefix="liferay-portlet" %>
<portlet:defineObjects /><liferay-theme:defineObjects /> <%
Role role = RoleLocalServiceUtil.getRole(user.getCompanyId(), "USER_TYPE");
String[] environment = (String[])themeDisplay.getScopeGroup().getExpandoBridge().getAttribute("Environment");

What is the equivalent in Liferay 7.1? In the code it's telling me user and themeDisplay are not defined or that the compiler cannot find the symbol. There doesn't seem to be documentation on this anywhere..