https://jena.apache.org/documentation/javadoc/shex/org.apache.jena.shex/org/apache/jena/shex/parser/javacc/ShExJavacc.html
ShExJavacc (Apache Jena ShEx)
declaration: module: org.apache.jena.shex, package: org.apache.jena.shex.parser.javacc, class: ShExJavacc
apache jenashex