I need to call a rest web service in playframework 2 and I need

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Asked: June 18, 20262026-06-18T05:47:14+00:00 2026-06-18T05:47:14+00:00

I need to call a rest web service in playframework 2 and I need

0

I need to call a rest web service in playframework 2 and I need to send a query parameter which is an array. In regular html I would send it like:

GET http://host.com?a=1&a=2&a=3

But when I do it when I try to do it with the playframework 2 WS api I do the next:

Map<String,String[]> paramMap = new HashMap<String, String[]>();
paramMap.put("a",new String[]{"value1","value2"});

WS.WSRequestHolder holder = WS.url("http://host.com");

Set<String> keys = paramMap.keySet();
for (int i = 0; i < paramMap.get(key).length; i++)
{
    holder.setQueryParameter(key, paramMap.get(key)[i]);
}

And the first time that setQueryParamater() arrives, everything goes perfect but the second time I get a NullPointerException and paramMap.get(key)[i] is not null. Is this possible? is there any workaround?

Thanks in advance!