An error occurred while processing the template.
The following has evaluated to null or missing:
==> .vars['reserved-article-group-id']  [in template "161555#161602#ARTICLE-PAGE---HERO" at line 14, column 20]

----
Tip: It's the final [] step that caused this error, not those before it.
----
Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: #assign groupId = .vars["reserved-art...  [in template "161555#161602#ARTICLE-PAGE---HERO" at line 14, column 1]
----
1<#assign namespace = randomNamespace /> 
2<#assign JSONFactoryUtil = staticUtil["com.liferay.portal.kernel.json.JSONFactoryUtil"] /> 
3<#assign journalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService") /> 
4<#assign containerId = randomNamespace /> 
5<#assign shareURL = themeDisplay.getPortalURL()+themeDisplay.getURLCurrent()/> 
6 
7<#-- Auto-assign ALL category to every article --> 
8<#assign assetCategoryLocalService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetCategoryLocalService") /> 
9<#assign assetEntryLocalService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetEntryLocalService") /> 
10<#assign journalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService") /> 
11  
12<#-- Get current JournalArticle --> 
13<#assign articleId = .vars['reserved-article-id'].data /> 
14<#assign groupId = .vars['reserved-article-group-id'].data?number /> 
15<#assign journalArticle = journalArticleLocalService.getArticle(groupId, articleId) /> 
16  
17<#-- Get AssetEntry for this article --> 
18<#assign assetEntry = assetEntryLocalService.getEntry("com.liferay.journal.model.JournalArticle", journalArticle.getResourcePrimKey()) /> 
19  
20<#-- Your ALL category ID --> 
21<#assign allCategoryId = 4614994 /> 
22  
23<#-- Assign ALL category if not already set --> 
24<#if !assetEntry.getCategories()?seq_contains(assetCategoryLocalService.getCategory(allCategoryId))> 
25    <#assign categoryIds = assetEntry.getCategoryIds() + [allCategoryId] /> 
26    ${assetEntryLocalService.updateEntry( 
27        assetEntry.getUserId(), 
28        assetEntry.getGroupId(), 
29        assetEntry.getClassName(), 
30        assetEntry.getClassPK(), 
31        assetEntry.getUuid(), 
32        assetEntry.getClassTypeId(), 
33        categoryIds, 
34        assetEntry.getTagNames() 
35    )} 
36</#if> 
37 
38<div class="hero jmarticle__hero-main-container"> 
39    <div class="container"> 
40        <div class="row"> 
41            <div class="article__cont"> 
42                <h1 class="article__heading">${Title.getData()}</h1> 
43                <#if (SubTitle.getData())??> 
44                    <p class="article__para"> 
45                        ${SubTitle.getData()} 
46                    </p> 
47                </#if> 
48 
49                <#assign Date_Data=getterUtil.getString(Date.getData())> 
50                <#if validator.isNotNull(Date_Data)> 
51                    <p class="article__date"> 
52                        <#assign Date_DateObj=dateUtil.parseDate("yyyy-MM-dd", Date_Data, locale)> 
53                        ${dateUtil.getDate(Date_DateObj, "dd MMMM yyyy", locale)} 
54                    </p> 
55                </#if> 
56 
57                <#if Link_Title?? && Link_Title.getData()?has_content> 
58                    <#list Link_Title.getSiblings() as cur_Link_Title> 
59						<#if cur_Link_Title?? && cur_Link_Title.getData()?has_content> 
60							<#assign linkHref="#" /> 
61							<#assign target="" /> 
62							 
63							<#assign rowId = containerId + cur_Link_Title?index /> 
64							<#if cur_Link_Title.Link_Internal?? && cur_Link_Title.Link_Internal.getFriendlyUrl()?has_content> 
65								<#assign linkHref=cur_Link_Title.Link_Internal.getFriendlyUrl() /> 
66							<#elseif cur_Link_Title.Link_Media?? && cur_Link_Title.Link_Media.getData()?has_content> 
67								<#assign linkHref=cur_Link_Title.Link_Media.getData() /> 
68							<#elseif cur_Link_Title.Link_Mailto?? && cur_Link_Title.Link_Mailto.getData()?has_content> 
69								<#assign linkHref="mailto:" + cur_Link_Title.Link_Mailto.getData() /> 
70							<#elseif cur_Link_Title.Link_External?? && cur_Link_Title.Link_External.getData()?has_content> 
71								<#assign linkHref=cur_Link_Title.Link_External.getData() /> 
72							</#if> 
73							<#if (cur_Link_Title.Link_Target??) && (cur_Link_Title.Link_Target.getData())?has_content> 
74								<#assign target=cur_Link_Title.Link_Target.getData() /> 
75							</#if> 
76							<div id="blue_button_click_div" data-analytics-asset-type="custom"> 
77								<div class="jmarticle__hero-btn-list"> 
78									<a id="panel_blue_button_${rowId}" class="article__btn" href="${linkHref}" title="${cur_Link_Title.getData()}" target="${target}" data-analytics-asset-action="click" onclick="onBlueButtonClick(this)" > 
79										<span class="btn__text">${cur_Link_Title.getData()}</span> 
80										<span class="arrow__forward"></span> 
81									</a> 
82								</div> 
83							</div> 
84						</#if> 
85					</#list> 
86                </#if> 
87				  <div class="article-download-share"> 
88                
89                    <#if PDFTitle?? && PDFTitle.getData()?has_content> 
90                        <#assign title = PDFTitle.getData() /> 
91                        <#assign pdf_link = "#" /> 
92                        <#assign pdfrowId = containerId /> 
93                        <#if PDFTitle.PDF?? && PDFTitle.PDF.getData()?has_content> 
94                            <#assign pdf_link = PDFTitle.PDF.getData() /> 
95                        </#if> 
96                        <div class="article-download"> 
97                            <div id="blue_button_click_div" data-analytics-asset-type="custom"> 
98                                <div class="jmarticle__hero-btn-list"> 
99                                    <a id="panel_blue_button_${pdfrowId}" class="article__btn" href="${pdf_link}" title="${title}" data-analytics-asset-action="click" onclick="onBlueButtonClick(this)"> 
100                                        <span class="btn__text">${title}</span> 
101                                        <span class="arrow__forward"></span> 
102                                    </a> 
103                                   <a id="panel_blue_button_${pdfrowId}" class="article__btn-mobile" href="${pdf_link}"             title="${title}" data-analytics-asset-action="click" onclick="onBlueButtonClick(this)"> 
104                                       <img src="${themeDisplay.getPathThemeImages()}/new__jm__images/download-white-icon.svg" alt="twitter image"/> 
105                                    </a> 
106                                </div> 
107                            </div> 
108                        </div> 
109                    </#if> 
110                                 
111                </div> 
112                 
113            </div> 
114        </div> 
115       <#if (ImageLarge.getData())?? && ImageLarge.getData() != ""> 
116            <div class="row jmarticle__hero-banner" id="jmarticle__hero-${namespace}"  
117            style="background-image: url(${ImageLarge.getData()})"> 
118        </#if> 
119 
120        </div> 
121    </div> 
122</div> 
123 
124<#if Author?? && Author.getData()?has_content> 
125    <div class="jmarticle__author-info"> 
126        <div class="container"> 
127            <div class="hero__bar"> 
128                     <#list Author.getSiblings() as cur_Author> 
129                            <#if cur_Author?? && cur_Author.getData()?has_content> 
130                                <#assign 
131                                    webContentData = jsonFactoryUtil.createJSONObject(cur_Author.getData()) 
132                                    gId = groupId 
133                                    journalArticle = journalArticleLocalService.getArticleByUrlTitle(gId, webContentData.title) 
134                                    docXML = saxReaderUtil.read(journalArticle.getContent()) 
135 
136                                    fName = docXML.valueOf("//dynamic-element[@name='FullName']/dynamic-content/text()") 
137                                    jobTitle = docXML.valueOf("//dynamic-element[@name='JobTitle']/dynamic-content/text()") 
138                                    role = docXML.valueOf("//dynamic-element[@name='ContactInfo']/dynamic-content/text()") 
139                                    photoXML = docXML.valueOf("//dynamic-element[@name='Photo']/dynamic-content/text()") 
140                                    photoSrc = JSONFactoryUtil.createJSONObject(photoXML).getString("uuid") 
141                                    fullName = docXML.valueOf("//dynamic-element[@name='Title']/dynamic-content/text()") 
142                                    authorImageXML = docXML.valueOf("//dynamic-element[@name='ImageLarge']/dynamic-content/text()") 
143                                    authImageSrc = JSONFactoryUtil.createJSONObject(authorImageXML).getString("uuid") 
144                                    summary = docXML.valueOf("//dynamic-element[@name='Summary']/dynamic-content/text()") 
145                                /> 
146 
147                                    <div class="author"> 
148                                        <figure class="author__image"> 
149                                            <#if authImageSrc?? && authImageSrc?has_content> 
150                                                <img src="/documents/${groupId}/${authImageSrc}" alt="${fullName}" class="author_img_class_new"> 
151                                            <#elseif photoSrc?? && photoSrc?has_content> 
152                                                <img src="/documents/${groupId}/${photoSrc}" alt="${fName}" class="author_img_class_new"> 
153                                            </#if> 
154                                        </figure> 
155                                        <div class="author__details d-flex flex-column"> 
156                                            <h3 class="author__name"> 
157                                                <a rel="author"> 
158                                                    <#if fullName?? && fullName?has_content> 
159                                                        ${fullName} 
160                                                    <#elseif fName?? && fName?has_content> 
161                                                        ${fName} 
162                                                    </#if> 
163                                                </a> 
164                                            </h3> 
165                                            <p class="author__desc text-size-a author_job_title"> 
166                                                <#if jobTitle?? && jobTitle?has_content> 
167                                                    ${jobTitle} 
168                                                </#if> 
169                                            </p> 
170                                            <span> 
171                                                <p class="author__desc text-size-a"> 
172                                                    <#if summary?? && summary?has_content> 
173                                                        ${summary} 
174                                                    </#if> 
175                                                    <#if role?? && role?has_content> 
176                                                        ${role} 
177                                                    </#if> 
178                                                </p> 
179                                            </span> 
180                                        </div> 
181                                        <div> 
182                                            <div class="author__contact"> 
183                                                <ul class="author__contact-list"> 
184                                                </ul> 
185                                            </div> 
186                                        </div> 
187                                    </div> 
188                             </#if> 
189                     </#list> 
190            </div> 
191    	</div> 
192    </div> 
193</#if> 
194 
195 
196 
197<div class="container"> 
198    <div class="row"> 
199        <div class="article__intro"> 
200            <#if (Introduction.getData())??> 
201            	${Introduction.getData()} 
202            </#if> 
203 
204           <div class="article-download-share"> 
205                
206                    <#if PDFTitle?? && PDFTitle.getData()?has_content> 
207                        <#assign title = PDFTitle.getData() /> 
208                        <#assign pdf_link = "#" /> 
209                        <#assign pdfrowId = containerId /> 
210                        <#if PDFTitle.PDF?? && PDFTitle.PDF.getData()?has_content> 
211                            <#assign pdf_link = PDFTitle.PDF.getData() /> 
212                        </#if> 
213                        <div class="article-download"> 
214                            <div id="blue_button_click_div" data-analytics-asset-type="custom"> 
215                                <div class="jmarticle__hero-btn-list"> 
216                                    <a id="panel_blue_button_${pdfrowId}" class="article__btn" href="${pdf_link}" title="${title}" data-analytics-asset-action="click" onclick="onBlueButtonClick(this)"> 
217                                        <span class="btn__text">${title}</span> 
218                                        <span class="arrow__forward"></span> 
219                                    </a> 
220                                   <a id="panel_blue_button_${pdfrowId}" class="article__btn-mobile" href="${pdf_link}"             title="${title}" data-analytics-asset-action="click" onclick="onBlueButtonClick(this)"> 
221                                       <img src="${themeDisplay.getPathThemeImages()}/new__jm__images/download-white-icon.svg" alt="twitter image"/> 
222                                    </a> 
223                                </div> 
224                            </div> 
225                        </div> 
226                    </#if>               
227                
228                   
229               <div class="article-share"> 
230                   <a href="https://linkedin.com/shareArticle?url=${shareURL}&title=<#if (Title.getData())??>${Title.getData()}</#if>" target="_blank"> 
231                       <img class="socialicons__img" src="${themeDisplay.getPathThemeImages()}/new__jm__images/social_icons-LinkedIN.png" alt="twitter image"/> 
232                    </a> 
233                      <a  href="https://twitter.com/share?url=${shareURL}&text=<#if (Title.getData())??>${Title.getData()}</#if>" target="_blank"> 
234                       <img class="socialicons__img" src="${themeDisplay.getPathThemeImages()}/new__jm__images/social_icons-Twitter.png" alt="twitter image"/> 
235                    </a> 
236                </div> 
237            </div> 
238       
239        </div> 
240    </div> 
241</div> 
242 
243<style> 
244    img.author_img_class_new { 
245        width: 100% !important; 
246        height: 100% !important; 
247        position: absolute; 
248        margin: auto; 
249        top: 0; 
250        bottom: 0; 
251
252     
253    .article__btn:focus-visible { 
254    outline: 2px solid blue !important; 
255
256 
257@media (min-width: 320px) and (max-width: 650px) { 
258	.article__intro li { 
259	   margin-left: -32px !important;		 
260
261	.journal-content-article .container .article__intro { 
262    margin-top: 22px !important; 
263
264
265@media (min-width: 540px) and (max-width: 834px) { 
266    .article__intro li { 
267	      margin-left: -32px !important;		 
268
269    .article__intro { 
270        margin: 60px 15px 0 5px !important;         
271
272
273  
274@media (min-width: 320px) and (max-width: 539px){ 
275.jmarticle__author-info { 
276    padding: 0px 0; 
277
278.jmarticle__author-info .author__image { 
279    width: 39px; 
280    height: 40px; 
281
282 
283.jmarticle__author-info .author__name a { 
284    line-height: 0px; 
285    font-size: 18px !important; 
286    margin-right: 10px; 
287
288 
289.jmarticle__author-info .author__desc { 
290     
291    line-height: 14px; 
292    font-size: 12px !important; 
293    margin-bottom: 7px; 
294
295
296  
297</style> 

World-class inventions and innovations have had a huge impact on many aspects of modern life, from medicine and computing to travel and infrastructure. To highlight Britain’s contribution, Royal Mail have worked with the Royal Academy of Engineering on a stamp set that features marvels of British engineering from the last 50 years.

In addition to JM’s three-way catalytic converter, the set includes the Raspberry Pi (the smallest of computers), the Falkirk Wheel (the world’s only rotating boat lift) and the monumental tunnel boring project that will enable Crossrail.

Making the air we breathe cleaner and healthier, JM’s three-way catalytic converter scrubs car exhausts of harmful gases. Today cars are far less polluting than they were 50 years ago and JM now supplies the technology in around a third of the cars on the road, preventing 40 tonnes of pollutants from entering the air every minute.

Fitted to petrol powered vehicles worldwide, it turns carbon monoxide, unburnt hydrocarbons and oxides of nitrogen into carbon dioxide, water and nitrogen. It does this with the use of metallic catalysts containing platinum, palladium and rhodium that are coated onto a ceramic honeycomb ‘monolith’ through which the exhaust gases flow.

Chris Morgan, Technology Director at Johnson Matthey, commented: “Being recognised with a stamp celebrating British Engineering is a huge honour for employees past and present who have been involved in Johnson Matthey’s ground-breaking work behind the catalytic converter. Every year, our catalytic converters prevent some 20 million tonnes of pollutants from entering the atmosphere, helping to make the world cleaner and healthier.”

Stamp of approval

The three-way catalytic converter was pioneered in the early 1980s and Johnson Matthey Group was awarded the Royal Academy of Engineering’s MacRobert Award in 1980 for this innovation; the UK’s most prestigious and longest running award for engineering excellence.

Dr Dame Sue Ion DBE FREng FRS, Chair of Judges for the Royal Academy of Engineering MacRobert Award, said: “The UK is a global engineering powerhouse with many world firsts developed here that have both benefitted our economy and helped to transform people’s lives for the better. This wonderful new set of Royal Mail stamps perfectly encapsulates the technical and commercial achievements made by British engineers over the last 50 years.”

Philip Parker, Royal Mail, said: “British innovation in engineering is world renowned. This stamp issue proudly celebrates the projects and inventions which showcase this, as well as demonstrating the extraordinary range of disciplines that British engineers excel in.”

Download the Royal Mail’s press release below for more information on all other stamps in their new collection.

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Press release

Download the Royal Mail's press release

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