static FreeMarkerPageContext create() throws TemplateModelException 
{
        return new FreeMarkerPageContext21();
}

 public ELContext getELContext() 
{
        if(elContext == null) { 
            JspApplicationContext jspctx = JspFactory.getDefaultFactory().getJspApplicationContext(getServletContext());
            if(jspctx instanceof FreeMarkerJspApplicationContext) {
                elContext = ((FreeMarkerJspApplicationContext)jspctx).createNewELContext(this);
                elContext.putContext(JspContext.class, this);
            }
            else {
                throw new UnsupportedOperationException(
                        "Can not create an ELContext using a foreign JspApplicationContext\n" +
                        "Consider dropping a private instance of JSP 2.1 API JAR file in\n" +
                        "your WEB-INF/lib directory and then try again.");
            }
        }
        return elContext;
}

 public ExpressionEvaluator getExpressionEvaluator() 
{
        try {
            Class type = ((ClassLoader)AccessController.doPrivileged(
                    new PrivilegedAction() {
                        public Object run() {
                            return Thread.currentThread().getContextClassLoader();
                        }
                    })).loadClass
                    ("org.apache.commons.el.ExpressionEvaluatorImpl");
            return (ExpressionEvaluator) type.newInstance();
        }
        catch (Exception e) {
            throw new UnsupportedOperationException("In order for the getExpressionEvaluator() " +
                "method to work, you must have downloaded the apache commons-el jar and " +
                "made it available in the classpath.");
        }
}

Attempts to locate and manufacture an expression evaulator instance. For this to work you must have the Apache Commons-EL package in the classpath. If Commons-EL is not available, this method will throw an UnsupportedOperationException.

 public VariableResolver getVariableResolver() 
{
        final PageContext ctx = this;
        return new VariableResolver() {
            public Object resolveVariable(String name) throws ELException {
                return ctx.findAttribute(name);
            }
        };
}

Returns a variable resolver that will resolve variables by searching through the page scope, request scope, session scope and application scope for an attribute with a matching name.