NPE in RoiI.getTable()

[jamoore]

For images without overlays, I got the following exception when I view
an image and turn the color model for example.

omero.InternalException
     serverStackTrace = "ome.conditions.InternalException:  Wrapped  
Exception: (java.lang.NullPointerException):
                         null
                         	at ome.services.blitz.impl.RoiI 
$13.doWork(RoiI.java:389)
                         	at  
sun.reflect.GeneratedMethodAccessor463.invoke(Unknown Source)
                         	at  
sun 
.reflect 
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 
25)
                         	at  
java.lang.reflect.Method.invoke(Method.java:592)
                         	at  
org 
.springframework 
.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation 
.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
                         	at ome.services.util.Executor$Impl 
$Interceptor.invoke(Executor.java:394)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at  
ome.security.basic.EventHandler.invoke(EventHandler.java:133)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at  
org 
.springframework 
.orm.hibernate3.HibernateInterceptor.invoke(HibernateInterceptor.java: 
111)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at  
org 
.springframework 
.transaction 
.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java: 
106)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at ome.tools.hibernate.ProxyCleanupFilter 
$Interceptor.invoke(ProxyCleanupFilter.java:175)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at  
ome.services.util.ServiceHandler.invoke(ServiceHandler.java:100)
                         	at  
org 
.springframework 
.aop 
.framework 
.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
                         	at  
org 
.springframework 
.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
                         	at $Proxy55.doWork(Unknown Source)
                         	at ome.services.util.Executor 
$Impl.execute(Executor.java:324)
                         	at  
ome.services.throttling.Adapter.run(Adapter.java:50)
                         	at  
ome 
.services 
.throttling 
.InThreadThrottlingStrategy 
.runnableCall(InThreadThrottlingStrategy.java:51)
                         	at  
ome 
.services 
.blitz.impl.AbstractAmdServant.runnableCall(AbstractAmdServant.java:129)
                         	at  
ome.services.blitz.impl.RoiI.getTable_async(RoiI.java:371)
                         	at  
omero.api._IRoiTie.getTable_async(_IRoiTie.java:148)
                         	at  
omero.api._IRoiDisp.___getTable(_IRoiDisp.java:463)
                         	at  
omero.api._IRoiDisp.__dispatch(_IRoiDisp.java:554)
                         	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 = "ome.conditions.InternalException"
     message = " Wrapped Exception: (java.lang.NullPointerException):
                null"
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native  
Method)
	at  
sun 
.reflect 
.NativeConstructorAccessorImpl 
.newInstance(NativeConstructorAccessorImpl.java:39)
	at  
sun 
.reflect 
.DelegatingConstructorAccessorImpl 
.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:501)
	at java.lang.Class.newInstance0(Class.java:350)
	at java.lang.Class.newInstance(Class.java:303)
	at IceInternal.BasicStream 
$DynamicUserExceptionFactory.createAndThrow(BasicStream.java:2243)
	at IceInternal.BasicStream.throwException(BasicStream.java:1632)
	at IceInternal.Outgoing.throwUserException(Outgoing.java:442)
	at  
omero.api._RenderingEngineDelM.setOverlays(_RenderingEngineDelM.java: 
2050)
	at  
omero 
.api 
.RenderingEnginePrxHelper.setOverlays(RenderingEnginePrxHelper.java: 
2851)
	at  
omero 
.api 
.RenderingEnginePrxHelper.setOverlays(RenderingEnginePrxHelper.java: 
2823)
	at  
org 
.openmicroscopy 
.shoola 
.env.rnd.RenderingControlProxy.setOverlays(RenderingControlProxy.java: 
1764)

[jmoore]

Is it possible that your server needs updating, J-M? The latest code should have a check for an empty overlays map which would prevent getTable() from being called.

[jmoore]

r5796 (trunk) and r5797 (b_4_1) prevent the NPE in RoiI.getTable and instead through an ApiUsageException

[jburel]

we probably fix that one