MailEngine.send throws java.lang.ClassNotFoundException: org.apache.commons.lang.time.StopWatch when is invoked from a portlet

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE
• Fix Version/s: 6.2.2 CE GA3 , 6.2.X EE, 7.0.0 M3
• Component/s: Util
• Labels:
  • liferay-fixpack-collaboration-15-6210
  • liferay-fixpack-development-8-6210
  • liferay-fixpack-document-management-13-6210
  • liferay-fixpack-platform-29-6210
  • liferay-fixpack-search-11-6210
  • liferay-fixpack-wcm-core-19-6210
  • liferay-fixpack-web-content-14-6210
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 15
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/21687

After adding LPS-45492 fix, If a portlet invokes MailEngine.send, a java.lang.ClassNotFoundException is thrown:

09:43:31,192 ERROR [http-bio-8080-exec-9][render_portlet_jsp:132] null
java.lang.ClassNotFoundException: org.apache.commons.lang.time.StopWatch
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	at com.liferay.util.mail.MailEngine.send(MailEngine.java:180)
	at com.liferay.util.mail.MailEngine.send(MailEngine.java:423)
	at ................ContactLocalPortlet.doView(ContactLocalPortlet.java:37)
	at com.liferay.portal.kernel.portlet.LiferayPortlet.doDispatch(LiferayPortlet.java:213)
	at com.liferay.util.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:323)
	at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
	at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:55)
	at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
	at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
	at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
	at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

The root cause is that LPS-45492 add a "new StopWatch" that was missing:

 
-		StopWatch stopWatch = null;
+		StopWatch stopWatch = new StopWatch();

This change create a new dependence between "util-java.jar" and "commons-lang.jar" (StopWatch is included at that jar) so all portlets that use MailEngine.send stop working