[TAPESTRY-2422] The Exception report will itself throw an exception if the exception being reported contains a write-only property

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.11
• Fix Version/s: 5.0.13
• Assignee: Howard Lewis Ship
• Reporter: Alexander Gavrilov
• Created: 16/May/08 09:24
• Updated: 06/Jun/08 23:07
• Resolved: 06/Jun/08 23:07

Description

when displayed exception contains at least one write-only property tapestry failing to render error page.
java.lang.UnsupportedOperationException: Class ui.Exception_detail does not provide an accessor ('getter') method for property 'faultCode'
at org.apache.tapestry.ioc.internal.services.PropertyAdapterImpl.get(PropertyAdapterImpl.java:81)
at org.apache.tapestry.ioc.internal.services.ClassPropertyAdapterImpl.get(ClassPropertyAdapterImpl.java:81)
at org.apache.tapestry.ioc.internal.services.ExceptionAnalyzerImpl.extractInfo(ExceptionAnalyzerImpl.java:105)
at org.apache.tapestry.ioc.internal.services.ExceptionAnalyzerImpl.analyze(ExceptionAnalyzerImpl.java:50)

it seems like error in extractInfo method, which does not analyze can it read property or not before invoking adapter.get(). So, it is simple to patch
Instead of

Object value = adapter.get(t, name);
if (value == null) continue;

Use

PropertyAdapter pa = adapter.getPropertyAdapter(name);
if (!pa.isRead()) continue;

Object value = pa.get(t);
if (value == null) continue;