#2362 - ENH: Add lock(bean) method as convenience for DB pessimistic locking

ebean-test/src/test/java/io/ebeaninternal/api/TDSpiServer.java

@@ -137,6 +137,10 @@ public class TDSpiServer implements SpiServer {
     return null;
   }
 
+  @Override
+  public void lock(Object bean) {
+  }
+
   @Override
   public Object nextId(Class<?> beanType) {
     return null;