bundles/org.apache.jasper.glassfish/src/org/apache/jasper/compiler/Parser.java
private void addInclude(Node parent, List files) throws JasperException {
        if( files != null ) {
            Iterator iter = files.iterator();
            while (iter.hasNext()) {
                String file = (String) iter.next();
                AttributesImpl attrs = new AttributesImpl();
                attrs.addAttribute("", "file", "file", "CDATA", file);

                // Create a dummy Include directive node
                Node includeNode = new Node.IncludeDirective(attrs, 
                    reader.mark(), parent);
                processIncludeDirective(file, includeNode);
            }
        }
    }
private void addInclude(Node parent, List files) throws JasperException {
        if( files != null ) {
            Iterator iter = files.iterator();
            while (iter.hasNext()) {
                String file = (String) iter.next();
                AttributesImpl attrs = new AttributesImpl();
                attrs.addAttribute("", "file", "file", "CDATA", file);

                // Create a dummy Include directive node
                Node includeNode = new Node.IncludeDirective(attrs, 
                    reader.mark(), parent);
                processIncludeDirective(file, includeNode);
            }
        }
    }
Add a list of files.  This is used for implementing include-prelude
and include-coda of jsp-config element in web.xml