[WICKET-2099] NullPointerException after jetty restart with persistent sessions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4-RC2
• Component/s: wicket
• Assignee: Matej Knopp
• Reporter: Adriano dos Santos Fernandes
• Created: 12/Feb/09 15:13
• Updated: 05/May/09 15:22
• Resolved: 05/May/09 15:15

Description

I start Jetty with a savePeriod (HashSessionManager) of 4 seconds. When I restart it, a NPE is logged each 4s. After some (not all) page loads, the exception stop.

Since NPE is never a feature, I suggest to apply that patch. Or something else more appropriate, if you understand the problem better.

Index: wicket/src/main/java/org/apache/wicket/protocol/http/pagestore/DiskPageStore.java
===================================================================
— wicket/src/main/java/org/apache/wicket/protocol/http/pagestore/DiskPageStore.java (revisão 740670)
+++ wicket/src/main/java/org/apache/wicket/protocol/http/pagestore/DiskPageStore.java (cópia de trabalho)
@@ -1165,7 +1165,7 @@
else if (page instanceof SerializedPageWithSession)
{
SerializedPageWithSession serialized = (SerializedPageWithSession)page;

• if (serialized.page.get() == SerializedPageWithSession.NO_PAGE)
  + if (serialized.page != null && serialized.page.get() == SerializedPageWithSession.NO_PAGE)
  {
  // stripped page, need to restore it first
  result = restoreStrippedSerializedPage(serialized);