'How to do a get request to SpringBoot java with an Array<Array<string>>?

I am doing a get request in angular with typescript and here it is:

this.http.get("http://localhost:8080/data-management/data-users/getAllGeneralInfoCV/"+this.listAllCharacteristicsToFind);

The attributte "listAllCharacteristicsToFind" is an Array<Array<string>>. For example, in this case, listAllCharacteristicsToFind[0] will be an array of two strings: [B2,C1]. I have in the controller in Java with SpringBoot this method:

@GetMapping("data-users/getAllGeneralInfoCV/{listAllCharacteristicsToFind}")
    public List<DataCV2> getAllGeneralInfoCV(@PathVariable ArrayList<ArrayList<String>> listAllCharacteristicsToFind){
        System.out.println(listAllCharacteristicsToFind);
        return findUserDataCVService.findAllGeneralCV(listAllCharacteristicsToFind.get(0),listAllCharacteristicsToFind.get(1), listAllCharacteristicsToFind.get(2), listAllCharacteristicsToFind.get(3), listAllCharacteristicsToFind.get(4), listAllCharacteristicsToFind.get(5));
}

In the system.out.println I can see that the array it gets to the controller is [[B2], [C1], [], [], [], [], []]. However, it should be [[B2, C1], [], [], [], [], []]. In Angular it is okey, so what's the problem?

javaarraysspring-bootjpaget


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