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http://jira.jboss.com/jira/browse/JBSEAM-1822?page=comments#action_12376024 ]
Sam Roberton commented on JBSEAM-1822:
--------------------------------------
Shane, I have seen your comments and am working on creating a test case (or set of test
cases) which cause(s) the IllegalStateException. That's proving harder than I would
have thought, unfortunately. I'm observing them in code for a decent-sized project
(I'm working in a branch trying to upgrade that codebase to Seam 2, still), but
I'm having trouble getting them to happen in a smaller scale test project.
Unfortunately, I doubt my employer would appreciate me sending you all our code so you
could reproduce it, and regardless, I doubt you'd want to wade through it.
I am still working on getting you a test case (probably test cases, plural, plus build
file, etc. --- the difficulty in reproduction makes me think it is heavily dependent on
concurrently executing tests), anyhow, but it might take me a bit longer to nail down the
exact circumstances that cause it.
BaseSeamTest does not properly emulateJsfLifecycle does not handle
phase listeners per the jsf 1.2 spec.
--------------------------------------------------------------------------------------------------------
Key: JBSEAM-1822
URL:
http://jira.jboss.com/jira/browse/JBSEAM-1822
Project: JBoss Seam
Issue Type: Bug
Components: Test Harness
Affects Versions: 2.0.0.BETA1
Reporter: Chris Rudd
Assigned To: Shane Bryzak
Fix For: 2.0.0.CR1
Under the 1.2 JSF spec, all phase listeners are called with the after phase events
reguarless of if an exception was thrown during the phase processing.
The resulting issue is that when Init.isTransactionMangementEnabled is true, and and an
exception (or an AssertionError) is thrown from within the phase method, the SeamPhase
listner does not get a chance to handle the condition and rollback the transaction. This
leaves the transaction open, and all further tests run for that class are now
"tainted" as there is a transaction running that will never be completed.
Wrapping code in the phase methods
(restoreViewPhase,applyRequestValuesPhase,processValidationsPhase,updateModelValuesPhase,invokeApplicationsPhase,
renderResponsePhase) like this will resolve the issue :
private void renderResponsePhase() throws Exception
{
phases.beforePhase(new PhaseEvent(facesContext, PhaseId.RENDER_RESPONSE,
MockLifecycle.INSTANCE));
+ try
+ {
updateConversationId();
renderResponseBegun = true;
renderResponse();
renderResponseComplete = true;
facesContext.getApplication().getStateManager().saveView(facesContext);
updateConversationId();
+ }
+ finally
+ {
phases.afterPhase(new PhaseEvent(facesContext, PhaseId.RENDER_RESPONSE,
MockLifecycle.INSTANCE));
+ }
}
it may be cleaner to refactor the phase methods into PhaseExection classes. (remove
firing of phase events from the phase methods )
public class PhaseExecution {
private PhaseId phaseId;
public PhaseExecution(PhaseId phaseId)
{
this.phaseId = phaseId;
}
protected abstract void execute() throws Exception
public void run() throws Exception {
fireBefore();
try
{
execute();
}
finally
{
afterPhase();
}
}
protected void fireBefore()
{
phases.beforePhase(new PhaseEvent(facesContext, phaseId,
MockLifecycle.INSTANCE));
}
protected void fireAfter()
{
phases.afterPhase(new PhaseEvent(facesContext, phaseId,
MockLifecycle.INSTANCE));
}
}
final private PhaseExcecution RESTORE_VIEW_PHASE= new
PhaseExecution(PhaseId.RESTORE_VIEW) {
protected void execute() throws Exception {
restoreViewPhase();
}
};
final private PhaseExcecution RENDER_RESPONSE_PHASE= new
PhaseExecution(PhaseId.RENDER_RESPONSE) {
protected void execute() throws Exception {
renderResponsePhase();
}
};
...
/**
* @return true if a response was rendered
*/
private boolean emulateJsfLifecycle() throws Exception
{
RESTORE_VIEW_PHASE.run();
if ( !isGetRequest() && !skipToRender() )
{
APPLY_REQUEST_VALUES_PHASE.run();
if (!skipToRender())
{
PROCESS_VALIDATIONS_PHASE.run();
if ( !skipToRender() )
{
UPDATE_MODEL_VALUES_PHASE.run();
if ( !skipToRender() )
{
INVOKE_APPLICATION_PHASE.run();
}
}
}
}
if ( skipRender() )
{
// we really should look at redirect parameters here!
return false;
}
else
{
RENDER_RESPONSE_PHASE.run();
return true;
}
}
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