[OLINGO-45] ClassCastException on Entity update

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: V2 1.0.0, V2 1.1.0
• Fix Version/s: V2 1.1.0
• Component/s: odata2-jpa
• Assignee: Chandan V.A
• Reporter: Georgi
• Created: 26/Oct/13 21:01
• Updated: 10/Feb/14 15:15
• Resolved: 04/Jan/14 08:48

Description

You might want to doublecheck the logic in
org.apache.olingo.odata2.processor.core.jpa.access.data.JPAEntity:write(final Map<String, Object> oDataEntryProperties, final boolean isCreate)

On line 141 there's an explicit cast to List<ODataEntry>. However I found out that during update, when the property is a 1:1..0 relation to another Entity, the returned type is ODataEntry. And that causes the ClassCastException.

I managed to solve this for me with a simple if/else block:

List<ODataEntry> relatedEntries = null;
if(oDataEntryProperties.get(propertyName) instanceof ODataEntry){
relatedEntries = new ArrayList<ODataEntry>();
relatedEntries.add((ODataEntry)oDataEntryProperties.get(propertyName));
} else {
relatedEntries = (List<ODataEntry>)oDataEntryProperties.get(propertyName);
}

The code is from the 1.1.0-SNAPSHOT master branch HEAD.
I hope that helps.