https://help.eclipse.org/latest/topic/org.eclipse.jdt.doc.isv/reference/api/org/eclipse/jdt/core/ClasspathVariableInitializer.html
ClasspathVariableInitializer (Eclipse JDT API Specification)
declaration: package: org.eclipse.jdt.core, class: ClasspathVariableInitializer
eclipsejdtapispecification