Bug: NPE on thumbnail retrieval

[cxallan]

/Users/callan/code/ome.git/dist/lib/python/omero_ServerErrors_ice.py:35: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  self.message = message
/Users/callan/code/ome.git/dist/lib/python/omero_api_ThumbnailStore_ice.py:136: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  return _M_omero.api.ThumbnailStore._op_getThumbnailByLongestSideDirect.invoke(self, ((size, ), _ctx))
Traceback (most recent call last):
  File "thumbnail.py", line 15, in <module>
    thumb = t.getThumbnailByLongestSideDirect(omero.rtypes.rint(size))
  File "/Users/callan/code/ome.git/dist/lib/python/omero_api_ThumbnailStore_ice.py", line 136, in getThumbnailByLongestSideDirect
    return _M_omero.api.ThumbnailStore._op_getThumbnailByLongestSideDirect.invoke(self, ((size, ), _ctx))
omero.InternalException/Users/callan/code/ome.git/dist/lib/python/omero_ServerErrors_ice.py:212: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  return IcePy.stringifyException(self)
: exception ::omero::InternalException
{
    serverStackTrace = ome.conditions.InternalException:  Wrapped Exception: (java.lang.NullPointerException):
null
	at ome.io.bioformats.BfPyramidPixelBuffer.getResolutionLevels(BfPyramidPixelBuffer.java:1052)
	at ome.services.ThumbnailBean.createScaledImage(ThumbnailBean.java:510)
	at ome.services.ThumbnailBean.retrieveThumbnailDirect(ThumbnailBean.java:999)
	at ome.services.ThumbnailBean._getThumbnailByLongestSideDirect(ThumbnailBean.java:1039)
	at ome.services.ThumbnailBean.getThumbnailByLongestSideDirect(ThumbnailBean.java:1054)
	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: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 ome.security.basic.EventHandler.invoke(EventHandler.java:150)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at ome.tools.hibernate.SessionHandler.doStateful(SessionHandler.java:182)
	at ome.tools.hibernate.SessionHandler.invoke(SessionHandler.java:166)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:108)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at ome.tools.hibernate.ProxyCleanupFilter$Interceptor.invoke(ProxyCleanupFilter.java:231)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at ome.services.util.ServiceHandler.invoke(ServiceHandler.java:111)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy74.getThumbnailByLongestSideDirect(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: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 ome.security.basic.BasicSecurityWiring.invoke(BasicSecurityWiring.java:83)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at ome.services.blitz.fire.AopContextInitializer.invoke(AopContextInitializer.java:43)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy74.getThumbnailByLongestSideDirect(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:597)
	at ome.services.blitz.util.IceMethodInvoker.invoke(IceMethodInvoker.java:179)
	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:136)
	at ome.services.blitz.impl.ThumbnailStoreI.getThumbnailByLongestSideDirect_async(ThumbnailStoreI.java:79)
	at omero.api._ThumbnailStoreTie.getThumbnailByLongestSideDirect_async(_ThumbnailStoreTie.java:134)
	at omero.api._ThumbnailStoreDisp.___getThumbnailByLongestSideDirect(_ThumbnailStoreDisp.java:381)
	at omero.api._ThumbnailStoreDisp.__dispatch(_ThumbnailStoreDisp.java:651)
	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
}

[Chris Allan <callan@…>]

(In [8dbfd62453d9d2d92f559f15389b9a3fadb0bf8f/ome.git] on branch develop) Ensure pyramid pixel buffers are re-usable. (Fixes #5171)