Java Map<String,String> data null error

Question

I am using map collection in Java. My code is below;

public void example(String var){
Map<String, String> params = new LinkedHashMap<String, String>();

params.put("data", var);

String jsonResult = Jsoup.connect(url).ignoreContentType(true).data(params).execute().body();
}

When var is null, I take an error which is java.lang.IllegalArgumentException: Data value must not be null.

as far as i know, its valid to put null referenced objects to a Map.. the IllegalArgumentException is not coming from the put statement, can you please post your stack trace. Also split up your long chained function to multiple lines (issue must be in that line), so you can clearly see where the issue is.. — Jos
– Jos, Commented Oct 4, 2015 at 16:04

Luiggi Mendoza · Accepted Answer · 2015-10-04 16:07:26Z

3

The error seems to be in Jsoup#data that doesn't accept null value for any param. If you know var is null, then don't add the key/value pair in the map.

answered Oct 4, 2015 at 16:07

Luiggi Mendoza

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