JAVA - Java, JDK, Applets, AWT, Swing, Thread, Networking, IO, Log4J etc
J2EE - JSP, JSF, Servlet, EJB, JDBC, JMS, JMX, JTA, JNI, JAAS, JCA, JAXP, JavaMail, JDBC, JNDI, RMI/IIOP
Web Technology - HTML, DHTML, Java Script, Tiles, Ajax
XML - XML, XSL, DTD, XSLT, XPATH, XSL-FO, XQUERY, XLINK, XPOINTER, JAXB, Xerces, JAXP, Xalan, Castor, Apache FOP.
Servers - Jakarta Tomcat, JBoss, Apache Web Server, BEA Weblogic, IBM WebSphere, JRun, JDeveloper Oracle application.
Database - Sybase, DB2, Oracle, MySQL, Postgre SQL, MS Access.
Framework - Struts , JBoss jBPM, Spring, Hibernate, JDO, Top Link, iBatis, Lucene, Nutch, GWT, Adobe Flex, JQuey, DOJO, DWR.
Modeling - Rational Rose 2000.
Web Service - Apache Axis, JAX-WS.
IDE - RAD, WSAD, Eclipse, JDeveloper, JBuilder, NetBeans, Intellij, Aqua Studio, Squirrel, TOAD.
Reporting - iReports, Jasper, jrxml, Coocon, jFree Chart, Apache POI-HSSF.
Build - Ant, Maven, Hudson.
Testing - Junit, JWebUnit, JMock, Cactus, FireBug, YSlow.
Scripting - Bash, KSH, CHS, SH, Perl, Python, PHP, AWK.
Version Control - CVS.
Work Flow - JBoss Business Process Management (iBPM)
Operating Systems - Solaris, Unix, Linux, Mainframe AS/400, Windows NT/2000