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java.lang.NullPointerException: null	at org.artifactory.repo.service.RepositoryServiceImpl.calculateMavenMetadata(RepositoryServiceImpl.java:1275)	at org.artifactory.repo.service.RepositoryServiceImpl.calculateMavenMetadataAsync(RepositoryServiceImpl.java:1271)	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 org.artifactory.schedule.aop.CompoundInvocation.proceed(CompoundInvocation.java:61)	at org.artifactory.schedule.aop.AsyncAdvice.invoke(AsyncAdvice.java:115)	at org.artifactory.schedule.aop.AsyncAdvice.access$000(AsyncAdvice.java:45)	at org.artifactory.schedule.aop.AsyncAdvice$1.run(AsyncAdvice.java:104)	at org.artifactory.schedule.ArtifactoryConcurrentExecutor$RunnableWrapper.run(ArtifactoryConcurrentExecutor.java:90)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)	at java.util.concurrent.FutureTask.run(FutureTask.java:138)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)	at java.lang.Thread.run(Thread.java:619)