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https://issues.apache.org/jira/browse/TAP5-2421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14224468#comment-14224468
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Jochen Kemnade commented on TAP5-2421:
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I'm beginning to understand the problem:
{{java.lang.reflect.Method.getExceptionTypes()}} is badly named because it
returns everything that the method declares to throw, {{Exception}}s as well as
{{Error}}s.
{{org.apache.tapestry5.internal.plastic.MethodAdviceManager.createProceedToAdvisedMethod()}}
generates a {{catch}} clause for each of those types, in which
{{MethodInvocation.setCheckedException(Exception)}} is called with the caught
object. If that is an {{Error}} rather than an {{Exception}}, the JRE throws a
VerifyError with an unhelpful error message.
I wonder why the error (the VerifyError) occurs on the other machine but not on
mine. The Error from the method is thrown on neither one.
> @Operation usage leads to java.lang.VerifyError if annotated method throws
> Error
> --------------------------------------------------------------------------------
>
> Key: TAP5-2421
> URL: https://issues.apache.org/jira/browse/TAP5-2421
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.4
> Reporter: Jochen Kemnade
>
> I have annotated a method in a page class with {{@Operation}}. When the
> method is called, a {{VerifyError}} is thrown:
> {code}
> 2014-11-24 13:19:46,685 [ajp-nio-9209-exec-33] ERROR
> o.a.t.m.T.RequestExceptionHandler - Processing of request failed with
> uncaught exception: java.lang.VerifyError: (class:
> pages/PageName$Invocation_methodName_1d10f8d1d549bc, method:
> proceedToAdvisedMethod signature: ()V) Incompatible argument to function
> {code}.
> The problem occurs with Java 7 as well as with Java 8 and regardless of
> whether the operation description contains a {{%}} or not.
> Unfortunately, I cannot reproduce the problem on a different machine.
> If I use {{OperationTracker}} "manually", no {{VerifyError}} is thrown.
> The advised method throws multiple checked exceptions and an {{Error}}.
> I'm not entirely sure what the error means, but I assume, the
> {{proceedToAdvisedMethod}} method is invoked with parameters, so it might be
> an issue with plastic rather than with tapestry-core.
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