Fixed - UpdateValue throws NPE if getNext() returns null. #2751

redisson-tomcat/redisson-tomcat-7/src/main/java/org/redisson/tomcat/UpdateValve.java

@@ -40,7 +40,11 @@ public class UpdateValve extends ValveBase {
 
     @Override
     public void invoke(Request request, Response response) throws IOException, ServletException {
-        //check if we already filtered/processed this request 
+        if (getNext() == null) {
+            return;
+        }
+
+        //check if we already filtered/processed this request
         if (request.getNote(ALREADY_FILTERED_NOTE) == null) {
             request.setNote(ALREADY_FILTERED_NOTE, Boolean.TRUE);
             try {

redisson-tomcat/redisson-tomcat-8/src/main/java/org/redisson/tomcat/UpdateValve.java

@@ -40,7 +40,11 @@ public class UpdateValve extends ValveBase {
 
     @Override
     public void invoke(Request request, Response response) throws IOException, ServletException {
-        //check if we already filtered/processed this request 
+        if (getNext() == null) {
+            return;
+        }
+
+        //check if we already filtered/processed this request
         if (request.getNote(ALREADY_FILTERED_NOTE) == null) {
             request.setNote(ALREADY_FILTERED_NOTE, Boolean.TRUE);
             try {

redisson-tomcat/redisson-tomcat-9/src/main/java/org/redisson/tomcat/UpdateValve.java

@@ -40,6 +40,10 @@ public class UpdateValve extends ValveBase {
 
     @Override
     public void invoke(Request request, Response response) throws IOException, ServletException {
+        if (getNext() == null) {
+            return;
+        }
+
         //check if we already filtered/processed this request 
         if (request.getNote(ALREADY_FILTERED_NOTE) == null) {
             request.setNote(ALREADY_FILTERED_NOTE, Boolean.TRUE);