Hi everyone,

I'm trying to set a customized Timestamp field via the 4.0.1 plain java API. We have some imported work items which are displaying a resolution date as the date of their import, and it does not appear that I can modify this field, which is why I have made my own.

The code is as follows:

            IAttribute att = null;
            att = workItemClient.findAttribute(projectArea, "ImportedResolutionDate", null);
           
            Timestamp timeStamp = workItem.getResolutionDate();
           
            System.out.println(att.getIdentifier());
            System.out.println(att.getAttributeType());
            if(att != null){
                if(workItem.hasCustomAttribute(att)){
                    workItem.setValue(att, timeStamp);
                }else{
                    throw new Exception("Work item does not have attribute " + att);
                }
            }else{
                throw new Exception("Attribute is null");
            }

So, I'm trying to set the value of my attribute - which has an ID of ImportedResolutionDate - to the existing resolution date (for testing purposes. This will eventually be expanded to pull the correct data from a database, but for now I wanted easy access to a value). When the code hits the line where the value is set, I get the following error:

Wed Jan 30 13:53:02 EST 2013 ERROR - null
class com.ibm.team.repository.common.internal.ImmutablePropertyException
com.ibm.team.repository.common.internal.ImmutablePropertyException
    at com.ibm.team.repository.common.internal.util.ItemUtil$ProtectAdapter.notifyChanged(ItemUtil.java:2051)
    at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:380)
    at com.ibm.team.repository.common.model.impl.TimestampExtensionEntryImpl.setTypedValue(TimestampExtensionEntryImpl.java:180)
    at com.ibm.team.repository.common.model.impl.TimestampExtensionEntryImpl.setValue(TimestampExtensionEntryImpl.java:362)
    at org.eclipse.emf.common.util.BasicEMap.putEntry(BasicEMap.java:303)
    at org.eclipse.emf.common.util.BasicEMap.put(BasicEMap.java:584)
    at org.eclipse.emf.common.util.BasicEMap$DelegatingMap.put(BasicEMap.java:799)
    at com.ibm.team.repository.common.model.impl.ItemImpl.setTimestampExtension(ItemImpl.java:1253)
    at com.ibm.team.workitem.common.internal.model.impl.WorkItemImpl.setValue(WorkItemImpl.java:2938)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.ibm.team.repository.common.internal.util.ItemStore$ItemInvocationHandler.invoke(ItemStore.java:597)
    at $Proxy16.setValue(Unknown Source)
    at <various lines in my classes>

So the attribute exists in the project area, I can call various get methods on the attribute and it returns the correct information, the work item is of a type which uses the attribute, and I do not see anywhere the attribute itself is set to be readonly or anything else that makes me think it is immutable. Anyone seen this before?