Add repo

pom.xml

@@ -20,6 +20,16 @@
         <maven>3.5.0</maven>
     </prerequisites>
 
+    <repositories>
+        <repository>
+            <id>oss-snapshots</id>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+            <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
+        </repository>
+    </repositories>
+
     <dependencies>
         <dependency>
             <groupId>org.eclipse.jetty.websocket</groupId>