HTML, HTML5, XHTML, XML, CSS, CSS 3, XUL
W3C Standards
Testing Utilities
Selenium, JUnit, HP LoadRunner, Grinder, NeoLoad, ...
Reporting Libraries
Highcharts, JasperReport, JFreeChart, PDF.js, BIRT
Java EE Compliance
Java EE, Jakarta EE, Servlet 2.3/2.4/+, Portlet, JSP, JSF, JPA, EJB, JDO, CDI, JDK 8+
Supporting Frameworks
Spring, ZK Spring, Grails, ZKGrails, Struts, Tiles, Liferay, JetSpeed 2, Hibernate, Oracle TopLink, Seam, Seasar...
Ajax UI Libraries
jQuery, Flash, CKEditor, SIMILE Timeline, SIMILE Timplot, Google Maps
Scripting Support
Java, Groovy, JavaScript, Ruby, Python, PHP, Scala, Clojure
Browser Support
Chrome, Firefox, IE, Edge, Safari, Mobile Safari, Opera, Webkit, Konqueror, Mozilla
Mobile Platform Support
iPad, iPhone, Android, Blackberry, JavaME enabled mobile devices
Web Servers
Apache Tomcat, IBM WebSphere, IBM WebSphere Process Server, IBM WebSphere Portal, SAP NetWeaver, Spring tc Server, jBoss Application Server, BEA WebLogic, Oracle OC4J, Sun GlassFish, Jetty, Google App Engine, among other application server compliant with servlet 2.3 specification and above.