Test Not A Socket

jetty-websocket/websocket-core/src/test/java/org/eclipse/jetty/websocket/annotations/EventMethodsCacheTest.java

@@ -3,6 +3,7 @@ package org.eclipse.jetty.websocket.annotations;
 import static org.hamcrest.Matchers.*;
 
 import org.eclipse.jetty.websocket.api.InvalidWebSocketException;
+import org.eclipse.jetty.websocket.api.WebSocketListener;
 import org.eclipse.jetty.websocket.frames.BaseFrame;
 import org.eclipse.jetty.websocket.frames.TextFrame;
 import org.junit.Assert;
@@ -118,6 +119,25 @@ public class EventMethodsCacheTest
         Assert.assertThat("MyEchoSocket.getOnFrames()",methods.getOnFrames().size(),is(0));
     }
 
+    /**
+     * Test Case for bad declaration (duplicate OnWebSocketBinary declarations)
+     */
+    @Test
+    public void testDiscoverNotASocket()
+    {
+        EventMethodsCache cache = new EventMethodsCache();
+        try
+        {
+            // Should toss exception
+            cache.getMethods(NotASocket.class);
+        }
+        catch (InvalidWebSocketException e)
+        {
+            // Validate that we have clear error message to the developer
+            Assert.assertThat(e.getMessage(),allOf(containsString(WebSocketListener.class.getSimpleName()),containsString(WebSocket.class.getSimpleName())));
+        }
+    }
+
     /**
      * Test Case for no exceptions and 3 methods
      */

jetty-websocket/websocket-core/src/test/java/org/eclipse/jetty/websocket/annotations/NotASocket.java

@@ -0,0 +1,17 @@
+package org.eclipse.jetty.websocket.annotations;
+
+import org.eclipse.jetty.websocket.api.WebSocketConnection;
+
+/**
+ * (Test Case)
+ * <p>
+ * Intentionally not specifying the @WebSocket annotation here
+ */
+public class NotASocket
+{
+    @OnWebSocketConnect
+    public void onConnect(WebSocketConnection conn)
+    {
+        /* do nothing */
+    }
+}