groovy import groovy.transform.CompileStatic @CompileStatic class Example { static void main(String[] args) { List<String> list = ["apple", "banana", "cherry"] List<String> upperCaseList = list.collect { it.toUpperCase() } assert upperCaseList == ["APPLE", "BANANA", "CHERRY"] List<String> filteredList = list.findAll { it.startsWith("b") } assert filteredList == ["banana"] } }