java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.apache.commons.configuration.event.EventSource.(EventSource.java:76)
at com.netflix.config.ConcurrentMapConfiguration.(ConcurrentMapConfiguration.java:68)
at com.netflix.config.ConcurrentCompositeConfiguration.(ConcurrentCompositeConfiguration.java:172)
at com.netflix.config.ConfigurationManager.getConfigInstance(ConfigurationManager.java:125)
at com.netflix.config.DynamicPropertyFactory.getInstance(DynamicPropertyFactory.java:263)
at com.netflix.config.DynamicProperty.getInstance(DynamicProperty.java:245)
at com.netflix.config.PropertyWrapper.(PropertyWrapper.java:58)
at com.netflix.hystrix.strategy.properties.archaius.HystrixDynamicPropertiesArchaius$ArchaiusDynamicProperty.(HystrixDynamicPropertiesArchaius.java:62)
at com.netflix.hystrix.strategy.properties.archaius.HystrixDynamicPropertiesArchaius$StringDynamicProperty.(HystrixDynamicPropertiesArchaius.java:73)
at com.netflix.hystrix.strategy.properties.archaius.HystrixDynamicPropertiesArchaius.getString(HystrixDynamicPropertiesArchaius.java:34)
at com.netflix.hystrix.strategy.HystrixPlugins.getPluginImplementationViaProperties(HystrixPlugins.java:344)
at com.netflix.hystrix.strategy.HystrixPlugins.getPluginImplementation(HystrixPlugins.java:334)
at com.netflix.hystrix.strategy.HystrixPlugins.getPropertiesStrategy(HystrixPlugins.java:243)
at com.netflix.hystrix.strategy.properties.HystrixPropertiesFactory.getCommandProperties(HystrixPropertiesFactory.java:62)
at com.netflix.hystrix.AbstractCommand.initCommandProperties(AbstractCommand.java:204)
at com.netflix.hystrix.AbstractCommand.(AbstractCommand.java:163)
at com.netflix.hystrix.HystrixCommand.(HystrixCommand.java:61)

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