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via Google Groups by Mikko Kokkonen, 1 year ago
java.lang.NullPointerException: 	at io.grpc.internal.InternalHandlerRegistry$Builder.addService(InternalHandlerRegistry.java:60)	at io.grpc.internal.AbstractServerImplBuilder.addService(AbstractServerImplBuilder.java:97)	at io.grpc.internal.AbstractServerImplBuilder.addService(AbstractServerImplBuilder.java:103)	at io.grpc.internal.AbstractServerImplBuilder.addService(AbstractServerImplBuilder.java:57)	at testing.Server.start(Server.java:31)	at testing.Server.main(Server.java:26)