diff --git a/webapp/test/stubs/javax/servlet/http/HttpServletResponseStub.java b/webapp/test/stubs/javax/servlet/http/HttpServletResponseStub.java
index 53b24c5ca..e32afa373 100644
--- a/webapp/test/stubs/javax/servlet/http/HttpServletResponseStub.java
+++ b/webapp/test/stubs/javax/servlet/http/HttpServletResponseStub.java
@@ -4,6 +4,7 @@ package stubs.javax.servlet.http;
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.io.StringWriter;
 import java.util.Locale;
 
 import javax.servlet.ServletOutputStream;
@@ -19,11 +20,22 @@ public class HttpServletResponseStub implements HttpServletResponse {
 	// ----------------------------------------------------------------------
 
 	private String redirectLocation;
+	private int status = 200;
+	private String errorMessage;
+	private StringWriter outputWriter = new StringWriter();
 
 	public String getRedirectLocation() {
 		return redirectLocation;
 	}
 
+	public int getStatus() {
+		return status;
+	}
+
+	public String getErrorMessage() {
+		return errorMessage;
+	}
+
 	// ----------------------------------------------------------------------
 	// Stub methods
 	// ----------------------------------------------------------------------
@@ -33,6 +45,22 @@ public class HttpServletResponseStub implements HttpServletResponse {
 		this.redirectLocation = location;
 	}
 
+	@Override
+	public void sendError(int status) throws IOException {
+		this.status = status;
+	}
+
+	@Override
+	public void sendError(int status, String message) throws IOException {
+		this.status = status;
+		this.errorMessage = message;
+	}
+
+	@Override
+	public PrintWriter getWriter() throws IOException {
+		return new PrintWriter(outputWriter);
+	}
+
 	// ----------------------------------------------------------------------
 	// Un-implemented methods
 	// ----------------------------------------------------------------------
@@ -73,12 +101,6 @@ public class HttpServletResponseStub implements HttpServletResponse {
 				"HttpServletResponseStub.getOutputStream() not implemented.");
 	}
 
-	@Override
-	public PrintWriter getWriter() throws IOException {
-		throw new RuntimeException(
-				"HttpServletResponseStub.getWriter() not implemented.");
-	}
-
 	@Override
 	public boolean isCommitted() {
 		throw new RuntimeException(
@@ -181,18 +203,6 @@ public class HttpServletResponseStub implements HttpServletResponse {
 				"HttpServletResponseStub.encodeUrl() not implemented.");
 	}
 
-	@Override
-	public void sendError(int arg0) throws IOException {
-		throw new RuntimeException(
-				"HttpServletResponseStub.sendError() not implemented.");
-	}
-
-	@Override
-	public void sendError(int arg0, String arg1) throws IOException {
-		throw new RuntimeException(
-				"HttpServletResponseStub.sendError() not implemented.");
-	}
-
 	@Override
 	public void setDateHeader(String arg0, long arg1) {
 		throw new RuntimeException(