diff --git a/jetty-servlets/src/main/java/org/eclipse/jetty/servlets/PushSessionCacheFilter.java b/jetty-servlets/src/main/java/org/eclipse/jetty/servlets/PushSessionCacheFilter.java
index 3ed504fe19e5..592a4c080f42 100644
--- a/jetty-servlets/src/main/java/org/eclipse/jetty/servlets/PushSessionCacheFilter.java
+++ b/jetty-servlets/src/main/java/org/eclipse/jetty/servlets/PushSessionCacheFilter.java
@@ -37,6 +37,9 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+/**
+ * @deprecated no replacement for this deprecated http feature
+ */
 @Deprecated
 public class PushSessionCacheFilter implements Filter
 {
@@ -47,6 +50,11 @@ public class PushSessionCacheFilter implements Filter
     private final ConcurrentMap<String, Target> _cache = new ConcurrentHashMap<>();
     private long _associateDelay = 5000L;
 
+    public PushSessionCacheFilter()
+    {
+        LOG.warn(PushSessionCacheFilter.class.getSimpleName() + " is an example class not suitable for production.");
+    }
+
     @Override
     public void init(FilterConfig config) throws ServletException
     {