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Key: OGNL-31
Type: Bug Bug
Status: Resolved Resolved
Resolution: Fixed
Priority: Major Major
Assignee: Jesse Kuhnert
Reporter: Ben Dotte
Votes: 0
Watchers: 1
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OGNL

Caching problem when looping over different implementations of the same interface

Created: 27/Mar/07 02:07 PM   Updated: 01/Apr/07 05:42 PM
Component/s: ExpressionCompiler
Affects Version/s: 2.7
Fix Version/s: 2.7

Environment: Tapestry 4.1.2 snapshot from 3-21, OGNL 2.7 snapshot from 3-27, Firefox 2, WinXP


 Description  « Hide
Perhaps this is a regression from OGNL-24? Here is a simple example that demonstrates the problem:

Template:
<loop jwcid="@For" source="ognl:testObjs" value="ognl:curObj">
<span jwcid="@Insert" value="ognl:curObj.myString" />
</loop>

Java:
public abstract TestOgnl getCurObj();

public List<TestOgnl> getTestObjs()
{
TestOgnl o1 = new TestOgnl1();
TestOgnl o2 = new TestOgnl2();
return Arrays.asList(o1, o2);
}

TestOgnl.java:
public interface TestOgnl
{
String getMyString();
}

TestOgnl1.java:
public class TestOgnl1 implements TestOgnl
{
public String getMyString()
{
return "ognl1String";
}
}

TestOgnl2.java:
public class TestOgnl2 implements TestOgnl
{
public String getMyString()
{
return "testognl2";
}
}

It seems to evaluate the first implementation of the interface fine, then fails when it hits a different one. The same error occurs if you change getTestObjs() to return Arrays.asList(o2, o1);. Here is the error and stack trace:

Unable to read OGNL expression '<parsed OGNL expression>' of $DirectorAccount_142@3c1[DirectorAccount]: collective.TestOgnl2

# org.apache.hivemind.ApplicationRuntimeException: Unable to read OGNL expression '<parsed OGNL expression>' of $DirectorAccount_142@3c1[DirectorAccount]: collective.TestOgnl2
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl#read (ExpressionEvaluatorImpl.java:126)
$ExpressionEvaluator_11194c93861#read ($ExpressionEvaluator_11194c93861.java:-1)
org.apache.tapestry.binding.ExpressionBinding#resolveExpression (ExpressionBinding.java:126)
org.apache.tapestry.binding.ExpressionBinding#getObject (ExpressionBinding.java:111)
org.apache.tapestry.binding.AbstractBinding#getObject (AbstractBinding.java:84)
$Insert_151#getValue ($Insert_151.java:-1)
org.apache.tapestry.components.Insert#renderComponent (Insert.java:48)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.ForBean#renderComponent (ForBean.java:181)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.IfBean#renderComponent (IfBean.java:96)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.Any#renderComponent (Any.java:53)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.html.Body#renderComponent (Body.java:38)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.html.Shell#renderComponent (Shell.java:64)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:182)
org.apache.tapestry.AbstractPage#renderPage (AbstractPage.java:237)
org.apache.tapestry.engine.RequestCycle#renderPage (RequestCycle.java:397)
org.apache.tapestry.services.impl.DefaultResponseBuilder#renderResponse (DefaultResponseBuilder.java:158)
org.apache.tapestry.services.impl.ResponseRendererImpl#renderResponse (ResponseRendererImpl.java:33)
$ResponseRenderer_11194c936f0#renderResponse ($ResponseRenderer_11194c936f0.java:-1)
org.apache.tapestry.engine.PageService#service (PageService.java:68)
$IEngineService_11194c93780#service ($IEngineService_11194c93780.java:-1)
org.apache.tapestry.services.impl.EngineServiceOuterProxy#service (EngineServiceOuterProxy.java:72)
org.apache.tapestry.engine.AbstractEngine#service (AbstractEngine.java:246)
org.apache.tapestry.services.impl.InvokeEngineTerminator#service (InvokeEngineTerminator.java:54)
$WebRequestServicer_11194c9375d#service ($WebRequestServicer_11194c9375d.java:-1)
org.apache.tapestry.services.impl.DisableCachingFilter#service (DisableCachingFilter.java:54)
$WebRequestServicerFilter_11194c9375f#service ($WebRequestServicerFilter_11194c9375f.java:-1)
$WebRequestServicer_11194c93761#service ($WebRequestServicer_11194c93761.java:-1)
$WebRequestServicer_11194c93759#service ($WebRequestServicer_11194c93759.java:-1)
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge#service (WebRequestServicerPipelineBridge.java:61)
$ServletRequestServicer_11194c9373b#service ($ServletRequestServicer_11194c9373b.java:-1)
org.apache.tapestry.request.DecodedRequestInjector#service (DecodedRequestInjector.java:55)
$ServletRequestServicerFilter_11194c93737#service ($ServletRequestServicerFilter_11194c93737.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
collective.ui.custom.HibernateFilter#service (HibernateFilter.java:37)
$ServletRequestServicerFilter_11194c93735#service ($ServletRequestServicerFilter_11194c93735.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
collective.ui.custom.LuceneIndexFilter#service (LuceneIndexFilter.java:24)
$ServletRequestServicerFilter_11194c93733#service ($ServletRequestServicerFilter_11194c93733.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
org.apache.tapestry.multipart.MultipartDecoderFilter#service (MultipartDecoderFilter.java:52)
$ServletRequestServicerFilter_11194c93731#service ($ServletRequestServicerFilter_11194c93731.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
org.apache.tapestry.services.impl.SetupRequestEncoding#service (SetupRequestEncoding.java:53)
$ServletRequestServicerFilter_11194c93739#service ($ServletRequestServicerFilter_11194c93739.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
$ServletRequestServicer_11194c9372a#service ($ServletRequestServicer_11194c9372a.java:-1)
org.apache.tapestry.ApplicationServlet#doService (ApplicationServlet.java:123)
collective.ui.CollectiveApplicationServlet#doService (CollectiveApplicationServlet.java:71)
org.apache.tapestry.ApplicationServlet#doGet (ApplicationServlet.java:104)
javax.servlet.http.HttpServlet#service (HttpServlet.java:743)
javax.servlet.http.HttpServlet#service (HttpServlet.java:856)
org.mortbay.jetty.servlet.ServletHolder#handle (ServletHolder.java:427)
... 15 more not displayed
# caused by java.lang.ClassCastException: collective.TestOgnl2
ognl.ASTChain28419276Accessor#get (ASTChain28419276Accessor.java:-1)
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl#read (ExpressionEvaluatorImpl.java:122)
$ExpressionEvaluator_11194c93861#read ($ExpressionEvaluator_11194c93861.java:-1)
org.apache.tapestry.binding.ExpressionBinding#resolveExpression (ExpressionBinding.java:126)
org.apache.tapestry.binding.ExpressionBinding#getObject (ExpressionBinding.java:111)
org.apache.tapestry.binding.AbstractBinding#getObject (AbstractBinding.java:84)
$Insert_151#getValue ($Insert_151.java:-1)
org.apache.tapestry.components.Insert#renderComponent (Insert.java:48)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.ForBean#renderComponent (ForBean.java:181)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.IfBean#renderComponent (IfBean.java:96)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.RenderBody#renderComponent (RenderBody.java:41)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.components.Any#renderComponent (Any.java:53)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.html.Body#renderComponent (Body.java:38)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.AbstractComponent#renderBody (AbstractComponent.java:525)
org.apache.tapestry.html.Shell#renderComponent (Shell.java:64)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
collective.ui.components.CollectiveComponent#renderComponent (CollectiveComponent.java:70)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:184)
org.apache.tapestry.BaseComponent#renderComponent (BaseComponent.java:92)
org.apache.tapestry.AbstractComponent#render (AbstractComponent.java:712)
org.apache.tapestry.services.impl.DefaultResponseBuilder#render (DefaultResponseBuilder.java:182)
org.apache.tapestry.AbstractPage#renderPage (AbstractPage.java:237)
org.apache.tapestry.engine.RequestCycle#renderPage (RequestCycle.java:397)
org.apache.tapestry.services.impl.DefaultResponseBuilder#renderResponse (DefaultResponseBuilder.java:158)
org.apache.tapestry.services.impl.ResponseRendererImpl#renderResponse (ResponseRendererImpl.java:33)
$ResponseRenderer_11194c936f0#renderResponse ($ResponseRenderer_11194c936f0.java:-1)
org.apache.tapestry.engine.PageService#service (PageService.java:68)
$IEngineService_11194c93780#service ($IEngineService_11194c93780.java:-1)
org.apache.tapestry.services.impl.EngineServiceOuterProxy#service (EngineServiceOuterProxy.java:72)
org.apache.tapestry.engine.AbstractEngine#service (AbstractEngine.java:246)
org.apache.tapestry.services.impl.InvokeEngineTerminator#service (InvokeEngineTerminator.java:54)
$WebRequestServicer_11194c9375d#service ($WebRequestServicer_11194c9375d.java:-1)
org.apache.tapestry.services.impl.DisableCachingFilter#service (DisableCachingFilter.java:54)
$WebRequestServicerFilter_11194c9375f#service ($WebRequestServicerFilter_11194c9375f.java:-1)
$WebRequestServicer_11194c93761#service ($WebRequestServicer_11194c93761.java:-1)
$WebRequestServicer_11194c93759#service ($WebRequestServicer_11194c93759.java:-1)
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge#service (WebRequestServicerPipelineBridge.java:61)
$ServletRequestServicer_11194c9373b#service ($ServletRequestServicer_11194c9373b.java:-1)
org.apache.tapestry.request.DecodedRequestInjector#service (DecodedRequestInjector.java:55)
$ServletRequestServicerFilter_11194c93737#service ($ServletRequestServicerFilter_11194c93737.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
collective.ui.custom.HibernateFilter#service (HibernateFilter.java:37)
$ServletRequestServicerFilter_11194c93735#service ($ServletRequestServicerFilter_11194c93735.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
collective.ui.custom.LuceneIndexFilter#service (LuceneIndexFilter.java:24)
$ServletRequestServicerFilter_11194c93733#service ($ServletRequestServicerFilter_11194c93733.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
org.apache.tapestry.multipart.MultipartDecoderFilter#service (MultipartDecoderFilter.java:52)
$ServletRequestServicerFilter_11194c93731#service ($ServletRequestServicerFilter_11194c93731.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
org.apache.tapestry.services.impl.SetupRequestEncoding#service (SetupRequestEncoding.java:53)
$ServletRequestServicerFilter_11194c93739#service ($ServletRequestServicerFilter_11194c93739.java:-1)
$ServletRequestServicer_11194c9373d#service ($ServletRequestServicer_11194c9373d.java:-1)
$ServletRequestServicer_11194c9372a#service ($ServletRequestServicer_11194c9372a.java:-1)
org.apache.tapestry.ApplicationServlet#doService (ApplicationServlet.java:123)
collective.ui.CollectiveApplicationServlet#doService (CollectiveApplicationServlet.java:71)
org.apache.tapestry.ApplicationServlet#doGet (ApplicationServlet.java:104)
javax.servlet.http.HttpServlet#service (HttpServlet.java:743)
javax.servlet.http.HttpServlet#service (HttpServlet.java:856)
org.mortbay.jetty.servlet.ServletHolder#handle (ServletHolder.java:427)
... 15 more not displayed

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