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Expression parsing failed; nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1007E:(pos 0): Property or field 'artifact' cannot be found on null
org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1007E:(pos 0): Property or field 'artifact' cannot be found on null	at uk.org.ppa.dispatcherapplications.event.ReportCompletedAdaptor.onApplicationEvent(ReportCompletedAdaptor.java:34)	at uk.org.ppa.dispatcherapplications.event.ReportCompletedAdaptor.onApplicationEvent(ReportCompletedAdaptor.java:1)	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166)	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138)	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:382)	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:336)	at uk.org.ppa.dispatcherapplications.ReportRunner.fireReportCompletedEvent(ReportRunner.java:364)	at uk.org.ppa.dispatcherapplications.ReportRunner.doEvent(ReportRunner.java:347)	at uk.org.ppa.dispatcherapplications.ReportRunner.generateReport(ReportRunner.java:252)	at uk.org.ppa.dispatcherapplications.ReportRunner.generateReport(ReportRunner.java:211)	at uk.org.ppa.dispatcherapplications.ReportRunner.createReport(ReportRunner.java:195)	at uk.org.ppa.dispatcherapplications.MultiReportRunner.processReport(MultiReportRunner.java:88)	at uk.org.ppa.dispatcherapplications.MultiReportRunner.run(MultiReportRunner.java:60)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)	at com.sun.proxy.$Proxy17.run(Unknown Source)	at uk.org.ppa.dispatcherapplications.AbstractRunnerWithPeriodTypeParameter.main(AbstractRunnerWithPeriodTypeParameter.java:119)