Missing Hibernate session after call to iQuery.clear() in Blitz

[cxallan]

In Blitz when calls are made to getThumbnailByLongestSideSet() an exception is thrown:

org.hibernate.LazyInitializationException: could not initialize proxy - no Session
        at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
        at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
        at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
        at ome.model.meta.Event$$EnhancerByCGLIB$$84ec8e1c.getTime(<generated>)
        at ome.services.ThumbnailBean.getThumbnail(ThumbnailBean.java:736)
        at ome.services.ThumbnailBean.getThumbnailByLongestSide(ThumbnailBean.java:787)
        at ome.services.ThumbnailBean.getThumbnailByLongestSideSet(ThumbnailBean.java:703)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:301)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
        at ome.security.basic.EventHandler.invoke(EventHandler.java:112)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at ome.tools.hibernate.SessionHandler.doStateful(SessionHandler.java:173)
        at ome.tools.hibernate.SessionHandler.invoke(SessionHandler.java:158)
        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:169)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at ome.services.util.ServiceHandler.invoke(ServiceHandler.java:92)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.interceptor.JamonPerformanceMonitorInterceptor.invokeUnderTrace(JamonPerformanceMonitorInterceptor.java:105)
        at org.springframework.aop.interceptor.AbstractTraceInterceptor.invoke(AbstractTraceInterceptor.java:110)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at $Proxy80.getThumbnailByLongestSideSet(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:301)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
        at ome.security.basic.BasicSecurityWiring.invoke(BasicSecurityWiring.java:79)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at ome.services.blitz.fire.AopContextInitializer.invoke(AopContextInitializer.java:35)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at $Proxy80.getThumbnailByLongestSideSet(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at ome.services.blitz.util.IceMethodInvoker.invoke(IceMethodInvoker.java:194)
        at ome.services.blitz.impl.Interceptor.invoke(Interceptor.java:58)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at $Proxy81.getThumbnailByLongestSideSet(Unknown Source)
        at omero.api._ThumbnailStoreTie.getThumbnailByLongestSideSet(_ThumbnailStoreTie.java:112)
        at omero.api._ThumbnailStoreDisp.___getThumbnailByLongestSideSet(_ThumbnailStoreDisp.java:285)
        at omero.api._ThumbnailStoreDisp.__dispatch(_ThumbnailStoreDisp.java:557)
        at IceInternal.Incoming.invoke(Incoming.java:147)
        at Ice.ConnectionI.invokeAll(ConnectionI.java:2249)
        at Ice.ConnectionI.message(ConnectionI.java:1362)
        at IceInternal.ThreadPool.run(ThreadPool.java:782)
        at IceInternal.ThreadPool.access$100(ThreadPool.java:12)
        at IceInternal.ThreadPool$EventHandlerThread.run(ThreadPool.java:1242)

This is likely due to the iQuery.clear() that is located in getThumbnailByLongestSide() and is unneeded.

[cxallan]

Potential fix in r2358, Ola can you try this?