Throwing below exception if authorization details are empty
{"exception":{"stacktrace":"java.lang.IndexOutOfBoundsException: Index: 0, Size: 0\n\tat java.util.ArrayList.rangeCheck(Unknown Source)[:1.8.0_151]\n\tat java.util.ArrayList.get(Unknown Source)[:1.8.0_151]\n\tat org.apache.cxf.transport.http.Headers.getAuthorization(Headers.java:540) [1916:org.apache.cxf.cxf-rt-transports-http:3.1.5.redhat-630371]\n\tat org.apache.cxf.transport.http.AbstractHTTPDestination.setupMessage(AbstractHTTPDes tination.java:396)[1916:org.apache.cxf.cxf-rt-transports-http:3.1.5.redhat- 630371]\n\tat org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination .java:239)[1916:org.apache.cxf.cxf-rt-transports-http:3.1.5.redhat-630371]\n\tat org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestinati on.java:234)[1917:org.apache.cxf.cxf-rt-transports-http-jetty:3.1.5.redhat- 630371]\n\tat