SPR-7553 - DefaultServletHttpRequestHandler fails on Google App Engine

git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@3679 50f2f4bb-b051-0410-bef5-90022cba6387

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/resource/DefaultServletHttpRequestHandler.java

@@ -52,6 +52,9 @@ public class DefaultServletHttpRequestHandler implements HttpRequestHandler, Ser
 	/** Default Servlet name used by Tomcat, Jetty, JBoss, and GlassFish */
 	private static final String COMMON_DEFAULT_SERVLET_NAME = "default";
 	
+	/** Default Servlet name used by Google App Engine */
+	private static final String GAE_DEFAULT_SERVLET_NAME = "_ah_default";
+	
 	/** Default Servlet name used by Resin */
 	private static final String RESIN_DEFAULT_SERVLET_NAME = "resin-file";
 	
@@ -85,6 +88,9 @@ public class DefaultServletHttpRequestHandler implements HttpRequestHandler, Ser
 			if (this.servletContext.getNamedDispatcher(COMMON_DEFAULT_SERVLET_NAME) != null) {
 				this.defaultServletName = COMMON_DEFAULT_SERVLET_NAME;
 			}
+			else if (this.servletContext.getNamedDispatcher(GAE_DEFAULT_SERVLET_NAME) != null) {
+				this.defaultServletName = GAE_DEFAULT_SERVLET_NAME;
+			}
 			else if (this.servletContext.getNamedDispatcher(RESIN_DEFAULT_SERVLET_NAME) != null) {
 				this.defaultServletName = RESIN_DEFAULT_SERVLET_NAME;
 			}