These are 1.2 libs downloaded from http://jstl.java.net/download.html
Licenses: Common Development and Distribution License (CDDL) version 1.0 + GNU General Public License (GPL) version 2
          https://glassfish.dev.java.net/public/CDDL+GPL.html

1.2 libs are compatible with JSP 2.1 containers.
See http://www.coderanch.com/how-to/java/JstlTagLibDefinitions for more info.

The previous files were version 1.1.2 for JSP 2.0.
Old names kept so they are overwritten in the update and are in the classpath.

jstl-api-1.2.jar  -> jstl.jar
jstl-impl-1.2.jar -> standard.jar