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Relative references are only usable when a base reference is set.
java.lang.IllegalArgumentException: Relative references are only usable when a base reference is set.	at org.restlet.data.Reference.getTargetRef(Reference.java:1674)	at org.restlet.Directory.(Directory.java:104)	at org.restlet.Directory.(Directory.java:142)	at com.usersmarts.ksb.services.servlet.TestReference.main(TestReference.java:23)