Null value in a map throws NPE in objectToValue [moved]

[jyemin]

This is Issue 30 moved from a Google Code project.
Added by 2010-04-07T05:29:35.000Z by mmast...@gmail.com.
Please review that bug for more context and additional comments, but update this bug.
Closed (Fixed).

Original labels: Type-Defect, Priority-Medium, Milestone-Release0.93

Original description

If you attempt to serialize a map with a null value, objectToValue throws a 
NullPointerException:

    public Object objectToValue(Object obj) {
        return objectToValue(obj.getClass(), obj);
    }

This is probably an issue in a few other collections as well.