--- impl/src/main/java/org/apache/taglibs/standard/tag/common/core/ImportSupport.java.orig	2015-06-01 22:34:34.882000000 +0000
+++ impl/src/main/java/org/apache/taglibs/standard/tag/common/core/ImportSupport.java	2015-06-01 22:35:29.078000000 +0000
@@ -36,6 +36,7 @@
 import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;
+import javax.servlet.WriteListener;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpServletResponseWrapper;
@@ -430,6 +431,24 @@
             public void write(int b) throws IOException {
                 bos.write(b);
             }
+
+            @Override
+            public boolean isReady() {
+                return true;
+            }
+
+            @Override
+            public void setWriteListener(WriteListener writeListener) {
+            }
+
+            @Override
+            public void close() throws IOException {
+            }
+
+            @Override
+            public void flush() throws IOException {
+            }
+
         };
 
         /**