[playframework#3] Result now extends FastRuntimeException. All exisin…

…g tests pass - cannot see any speed improvemet when runing the tests. Note sure if this is a needed patch

framework/src/play/mvc/results/Result.java

@@ -1,11 +1,12 @@
 package play.mvc.results;
 
 import play.mvc.Http;
+import play.utils.FastRuntimeException;
 
 /**
  * Result support
  */
-public abstract class Result extends RuntimeException {
+public abstract class Result extends FastRuntimeException {
 
     public Result() {
         super();

framework/src/play/utils/FastRuntimeException.java

@@ -0,0 +1,33 @@
+package play.utils;
+
+/**
+ * Fast Exception - skips creating stackTrace.
+ *
+ * More info here: http://www.javaspecialists.eu/archive/Issue129.html
+ */
+public class FastRuntimeException extends RuntimeException {
+
+    public FastRuntimeException(){
+        super();
+    }
+
+    public FastRuntimeException( String desc){
+        super(desc);
+    }
+
+    public FastRuntimeException(String desc, Throwable cause){
+        super(desc, cause);
+    }
+
+    public FastRuntimeException(Throwable cause){
+        super(cause);
+    }
+
+    /**
+     * Since we override this method, no stacktrace is generated - much faster
+     * @return always null
+     */
+    public Throwable fillInStackTrace() {
+        return null;
+    }
+}