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Handlingjava.lang.NullPointerException: null	at org.eclipse.equinox.internal.cm.ConfigurationDictionary.put(ConfigurationDictionary.java:106)	at org.eclipse.equinox.internal.cm.ConfigurationDictionary.put(ConfigurationDictionary.java:1)	at org.eclipse.smarthome.io.rest.core.config.ConfigurationService.update(ConfigurationService.java:83)	at org.eclipse.smarthome.io.rest.core.config.ConfigurationService.update(ConfigurationService.java:56)	at org.eclipse.smarthome.io.rest.core.service.ConfigurableServiceResource.updateConfiguration(ConfigurableServiceResource.java:136)	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.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)