[jira] Created: (CXF-2787) CXF Extension bit @QueryParam("") does not allow null values in the bean

[Matt Inger (JIRA)]

CXF Extension bit @QueryParam("") does not allow null values in the bean
------------------------------------------------------------------------

                 Key: CXF-2787
                 URL: https://issues.apache.org/jira/browse/CXF-2787
             Project: CXF
          Issue Type: Bug
          Components: JAX-RS
    Affects Versions: 2.2.5
            Reporter: Matt Inger


If you use the @QueryParam("") extension bit on a method parameter:

{code}
public void foo(@QueryParam("") Bar bar);
{code}

you cannot have fields in the Bar class with null values.  The problem stems 
from this method:

{code}
org.apache.cxf.jaxrs.utils.InjectionUtils.fillInValuesFromBean(Object, String, 
MultivaluedMap<String, Object>)
{code}


specifically, this piece of code, which assumes the value is not null, and thus 
causes a NullPointerException if it is null:

{code}
                Object value = extractFromMethod(bean, m);
                if (isPrimitive(value.getClass())) {
                    values.putSingle(propertyName, value);
                } else if (isSupportedCollectionOrArray(value.getClass())) {
                    // ignoring arrrays for a moment
                    List<Object> theValues = null;
                    if (value.getClass().isArray()) {
                        theValues = Arrays.asList(value);
                    } else {
                        theValues = CastUtils.cast((List<?>)value);
                    }
                    values.put(propertyName, theValues);
                } else {
                    fillInValuesFromBean(value, propertyName, values);
                }
{code}

Ideally, if a value is null, one should just ignore the property and not add it 
to the parameter map.




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