consistent mock behavior

org.springframework.web/src/test/java/org/springframework/mock/web/MockPageContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 the original author or authors.
+ * Copyright 2002-2009 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ import java.util.Collections;
 import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
+import javax.el.ELContext;
 import javax.servlet.Servlet;
 import javax.servlet.ServletConfig;
 import javax.servlet.ServletContext;
@@ -34,7 +35,6 @@ import javax.servlet.jsp.JspWriter;
 import javax.servlet.jsp.PageContext;
 import javax.servlet.jsp.el.ExpressionEvaluator;
 import javax.servlet.jsp.el.VariableResolver;
-import javax.el.ELContext;
 
 import org.springframework.util.Assert;
 
@@ -279,11 +279,11 @@ public class MockPageContext extends PageContext {
 	}
 
 	public ELContext getELContext() {
-		throw new UnsupportedOperationException("getELContext");
+		return null;
 	}
 
 	public VariableResolver getVariableResolver() {
-		throw new UnsupportedOperationException("getVariableResolver");
+		return null;
 	}
 
 	public HttpSession getSession() {
@@ -291,7 +291,7 @@ public class MockPageContext extends PageContext {
 	}
 
 	public Object getPage() {
-		throw new UnsupportedOperationException("getPage");
+		return this;
 	}
 
 	public ServletRequest getRequest() {
@@ -303,7 +303,7 @@ public class MockPageContext extends PageContext {
 	}
 
 	public Exception getException() {
-		throw new UnsupportedOperationException("getException");
+		return null;
 	}
 
 	public ServletConfig getServletConfig() {