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java.lang.NullPointerException: null	at org.artifactory.logging.sumo.SumoLogicServiceImpl.fetchOrRefreshToken(SumoLogicServiceImpl.java:283)	at org.artifactory.logging.sumo.SumoLogicServiceImpl.refreshToken(SumoLogicServiceImpl.java:268)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201)	at com.sun.proxy.$Proxy116.refreshToken(Unknown Source)