KNOX-3238: Fix compilation errors after rebasing on master

Author: smolnar82

gateway-service-admin/src/main/java/org/apache/knox/gateway/service/admin/ServiceDefinitionUnmarshaller.java

@@ -34,6 +34,11 @@
 
 import org.apache.knox.gateway.service.definition.ServiceDefinitionPair;
 
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.transform.stream.StreamSource;
+
 @Provider
 @Consumes({ MediaType.APPLICATION_XML })
 public class ServiceDefinitionUnmarshaller implements MessageBodyReader<ServiceDefinitionPair> {

gateway-service-admin/src/test/java/org/apache/knox/gateway/service/admin/ServiceDefinitionUnmarshallerTest.java

@@ -24,8 +24,7 @@
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 
-import javax.ws.rs.core.MediaType;
-
+import jakarta.ws.rs.core.MediaType;
 import org.apache.knox.gateway.service.definition.ServiceDefinitionPair;
 import org.junit.Test;