SSLSocketChannel2: throttle processHandshake() if no handshake is done

Signed-off-by: Juhyung Park <[email protected]>

Author: arter97

src/main/java/org/java_websocket/SSLSocketChannel2.java

@@ -190,6 +190,14 @@ private synchronized void processHandshake(boolean isReading) throws IOException
       if (writeEngineResult.getHandshakeStatus() == HandshakeStatus.FINISHED) {
         createBuffers(sslEngine.getSession());
         return;
+      } else {
+        // processHandshake() can spin in a loop if a connection is made with no SSL handshake,
+        // throttle this by delaying 10ms to avoid consuming a CPU core.
+        try {
+          Thread.sleep(10);
+        } catch (InterruptedException e) {
+          // Ignore
+        }
       }
     }
     assert (sslEngine.getHandshakeStatus()