How get a list with all items beginning with request param from optional stream

I want write a method where when you post a parameter fooName it returns a list with all values that start with the given parameter. I wrote such a function but unfortunately it returns a list with only one, first found value that starts with fooName. How to return a list with all matching values?

My getAllStreams method looks like:

@GetMapping
@ResponseBody
public List<Stream> getAllStreams(@RequestParam("fooName") String fooName){
    var optionalStream = streamService.getAllStreams().stream()
            .filter(str -> str.getFooName().startsWith(fooName)).findAny();
    if (optionalStream.isPresent()) {
        List<Stream> targetLongList = optionalStream.stream()
                .filter(str -> str.getFooName().startsWith(fooName))
                .collect(Collectors.toCollection(ArrayList::new));
        return targetLongList;
    }
        return null;
}

When I post the following example:

[
    {
        "value": "c30",
        "fooName": "example2"
    },
    {
        "value": "90",
        "fooName": "example1"
    }
]

I only get:

[
    {
        "value": "c30",
        "fooName": "example2"
    }
]

Why are doing it to two times. Also findAny will only give you one item

You could just do it with one line

return streamService.getAllStreams().stream()
        .filter(str -> str.getFooName().startsWith(fooName)).collect(Collectors.toList())