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diff --git a/jdisc_core/src/main/java/com/yahoo/jdisc/handler/OverloadException.java b/jdisc_core/src/main/java/com/yahoo/jdisc/handler/OverloadException.java
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+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.jdisc.handler;
+
+/**
+ * An exception to signal abort current action, as the container is overloaded.
+ * Just unroll state as cheaply as possible.
+ *
+ * <p>
+ * The contract of OverloadException (for Jetty) is:
+ * </p>
+ *
+ * <ol>
+ * <li>You must set the response yourself first, or you'll get 500 internal
+ * server error.</li>
+ * <li>You must throw it from handleRequest synchronously.</li>
+ * </ol>
+ *
+ * @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
+ */
+public class OverloadException extends RuntimeException {
+    public OverloadException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}