1.0 TesterFunctions http://tomcat.apache.org/testerFunctions trim org.apache.el.TesterFunctions java.lang.String trim(java.lang.String) concat org.apache.el.TesterFunctions java.lang.String concat(java.lang.String[]) toArray org.apache.el.TesterFunctions java.lang.String toArray(java.lang.String,java.lang.String)