Groovy 2 List 转换成 Map(String,List<String> )

Question

I have 2 List, details are below

def value =['a','b','c']
def recId =['R1','R2']

I need to create a single Map (string, List) with the above two lists, like

[R1:[a,b,c]
R2:[a,b,c]]

can anyone suggest me the solution?

Answer 1

def value =['a','b','c']
def recId =['R1','R2']

def map = recId.collectEntries{e-> [e,value] }

but each entry will reference the same value array. so, changing one of them will change all.

the following code will create a copy of value list for each entry

def map = recId.collectEntries{e-> [e,value.clone()] }