[OGNL-46] CLONE -Caching problem when looping over different implementations of the same interface - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 2.7
Fix Version/s: 2.7
Component/s: ExpressionCompiler
Labels:
None
Environment:
Tapestry 4.1.2 snapshot from 3-21, OGNL 2.7 snapshot from 3-27, Firefox 2, WinXP

Description

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

Template:

</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)