Bug: Class Cast Exception (DetailsI to ObjectI)

[jburel]

The following java test testResetDefaultInSetForScreen in integration/RenderingSettingsServiceTest leads to the following exception.

testResetDefaultInSetForScreen on instance null(integration.RenderingSettingsServiceTest) 	0.911s 	omero.InternalException
    serverStackTrace = "java.lang.ClassCastException: ome.model.internal.Details$1 cannot be cast to ome.model.IObject
                        at omero.util.IceMapper.reverse(IceMapper.java:949)
                        at omero.model.ImageI.fillDetails(ImageI.java:222)
                        at omero.model.ImageI.fillObject(ImageI.java:1213)
                        at omero.util.IceMapper.reverse(IceMapper.java:953)
                        at omero.model.WellSampleI.fillImage(WellSampleI.java:188)
                        at omero.model.WellSampleI.fillObject(WellSampleI.java:548)
                        at omero.util.IceMapper.reverse(IceMapper.java:953)
                        at omero.util.IceMapper.reverse(IceMapper.java:798)
                        at omero.util.IceMapper.reverse(IceMapper.java:862)
                        at omero.model.WellI.fillWellSamples(WellI.java:392)
                        at omero.model.WellI.fillObject(WellI.java:710)
                        at omero.util.IceMapper.reverse(IceMapper.java:953)
                        at omero.util.IceMapper.reverse(IceMapper.java:798)
                        at omero.util.IceMapper.reverse(IceMapper.java:862)
                        at omero.model.PlateI.fillWells(PlateI.java:676)
                        at omero.model.PlateI.fillObject(PlateI.java:1112)
                        at omero.util.IceMapper.reverse(IceMapper.java:953)
                        at omero.model.ScreenPlateLinkI.fillChild(ScreenPlateLinkI.java:177)
                        at omero.model.ScreenPlateLinkI.fillObject(ScreenPlateLinkI.java:229)
                        at omero.util.IceMapper.reverse(IceMapper.java:953)
                        at omero.util.IceMapper.handleInput(IceMapper.java:1055)
                        at ome.services.blitz.util.IceMethodInvoker.arguments(IceMethodInvoker.java:229)
                        at ome.services.blitz.util.IceMethodInvoker.invoke(IceMethodInvoker.java:175)
                        at ome.services.throttling.Callback.run(Callback.java:56)
                        at ome.services.throttling.InThreadThrottlingStrategy.callInvokerOnRawArgs(InThreadThrottlingStrategy.java:56)
                        at ome.services.blitz.impl.AbstractAmdServant.callInvokerOnRawArgs(AbstractAmdServant.java:137)
                        at ome.services.blitz.impl.UpdateI.saveAndReturnObject_async(UpdateI.java:64)
                        at sun.reflect.GeneratedMethodAccessor772.invoke(Unknown Source)
                        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
                        at java.lang.reflect.Method.invoke(Method.java:597)
                        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
                        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
                        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
                        at omero.cmd.CallContext.invoke(CallContext.java:59)
                        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
                        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
                        at $Proxy88.saveAndReturnObject_async(Unknown Source)
                        at omero.api._IUpdateTie.saveAndReturnObject_async(_IUpdateTie.java:92)
                        at omero.api._IUpdateDisp.___saveAndReturnObject(_IUpdateDisp.java:185)
                        at omero.api._IUpdateDisp.__dispatch(_IUpdateDisp.java:365)
                        at IceInternal.Incoming.invoke(Incoming.java:159)
                        at Ice.ConnectionI.invokeAll(ConnectionI.java:2037)
                        at Ice.ConnectionI.message(ConnectionI.java:972)
                        at IceInternal.ThreadPool.run(ThreadPool.java:577)
                        at IceInternal.ThreadPool.access$100(ThreadPool.java:12)
                        at IceInternal.ThreadPool$EventHandlerThread.run(ThreadPool.java:971)
                        "
    serverExceptionClass = "java.lang.ClassCastException"
    message = "ome.model.internal.Details$1 cannot be cast to ome.model.IObject"

[cblackburn]

I'm seeing the same exception in a couple of tests in integration/ishare.py.

[jmoore]

Fixed and pushing to schema branch:

commit 2fff5b683cf1169e23ec7a18e1b3dc1c25399ee6
Author: jmoore <josh@glencoesoftware.com>
Date:   Tue May 29 08:46:02 2012 +0200

    Fix ClassCastException of Details (Fix #8908)
    
    I'm not sure what changed to make this now throw,
    but the return type of the failing method is
    Filterable rather than IObject so there's no need
    to be so strict.

diff --git a/components/blitz/src/omero/util/IceMapper.java b/components/blitz/src/omero/util/IceMapper.java
index 586500c..c2f5638 100644
--- a/components/blitz/src/omero/util/IceMapper.java
+++ b/components/blitz/src/omero/util/IceMapper.java
@@ -946,7 +946,7 @@ public class IceMapper extends ome.util.ModelMapper implements
 
         } else if (target2model.containsKey(source)) {
 
-            return (ome.model.IObject) target2model.get(source);
+            return (Filterable) target2model.get(source);^M