s:link does not work on failover in a clustered environment
-----------------------------------------------------------
Key: JBSEAM-4800
URL: https://issues.jboss.org/browse/JBSEAM-4800
Project: Seam 2
Issue Type: Bug
Components: JSF Integration
Affects Versions: 2.2.1.Final
Environment: EAP 5.1
Seam 2.2.2.EAP5
Reporter: Samuel Mendenhall
Fix For: 2.3.0.BETA1
When clicking on an s:link after a node has been taken down, the exception
below is thrown.
Method of reproducing:
* Two EAP 5.1 nodes fronted with mod_jk. No firewall, sticky sessions +
session replication definitely enabled.
* JBDS Seam generated ear + a simple @Clustered EJB3 which has a method that
takes a parameter and prints the EL parametrized text (I don't think EL
parametrization is relevant here)
* Click on the s:link on the page, it invokes fine, go back in the browser.
Shutdown the active JBoss instance. Click the s:link again which is redirected
to the 2nd JBoss now and receive:
14:17:42,995 ERROR [Exceptions] handled and logged exception
java.lang.IllegalStateException: Unable to read view /home.xhtml to execute
action "#{someComponent.printText('Hello World')}"
at
org.jboss.seam.navigation.SafeActions.isActionSafe(SafeActions.java:67)
at org.jboss.seam.navigation.Pages.callAction(Pages.java:699)
at org.jboss.seam.navigation.Pages.preRender(Pages.java:331)
at
org.jboss.seam.jsf.SeamPhaseListener.preRenderPage(SeamPhaseListener.java:561)
at
org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:472)
at
org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:148)
at
org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:118)
SafeActions.java:67 isn't so telling:
===================
String viewId = id.substring(0, loc);
String action = "\"#{" + id.substring(loc+1) + "}\"";
InputStream is =
FacesContext.getCurrentInstance().getExternalContext().getResourceAsStream(viewId);
if (is==null) throw new IllegalStateException("Unable to read view " + "/" +
viewId + " to execute action " + action);
===================
The code says the InputStream is null on failover, so the
getResourceAsStream(viewId) failed to return anything.
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