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

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at java.util.Hashtable.put(
at java.util.Hashtable.putAll(
at org.aeonbits.owner.PropertiesManager.merge(
at org.aeonbits.owner.PropertiesManager.load(
at org.aeonbits.owner.PropertiesManager.load(
at org.aeonbits.owner.PropertiesInvocationHandler.(
at org.aeonbits.owner.DefaultFactory.create(
at org.aeonbits.owner.ConfigFactory.create(
at org.aeonbits.owner.issues.Issue184.before(

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