fixes #3244, null check for non existing variable

svn changeset:8597/svn branch:6.1

diff --git a/src/com/vaadin/terminal/gwt/client/ui/VScrollTable.java b/src/com/vaadin/terminal/gwt/client/ui/VScrollTable.java
index 32808e36c6914bbc37352ec0e08ea44156ce21dc..ead68311ed2315f4970fbfbde11150aebd03f3dc 100644 (file)
--- a/src/com/vaadin/terminal/gwt/client/ui/VScrollTable.java
+++ b/src/com/vaadin/terminal/gwt/client/ui/VScrollTable.java
@@ -196,8 +196,10 @@ public class VScrollTable extends FlowPanel implements Table, ScrollHandler {
 
         recalcWidths = uidl.hasAttribute("recalcWidths");
 
-        pageLength = uidl.getIntAttribute("pagelength");
-        if (pageLength == 0) {
+        if (uidl.hasAttribute("pagelength")) {
+            pageLength = uidl.getIntAttribute("pagelength");
+        } else {
+            // pagelenght is "0" meaning scrolling is turned off
             pageLength = totalRows;
         }
         firstvisible = uidl.hasVariable("firstvisible") ? uidl