I found the problem:
I was using javax.el:javax.el-api:3.0.0 as EL api jar... now, if I use the
el-api provided by tomcat, everything works fine.
Xavier
----------------------------------------
> Subject: Re: Using EL expressions in an ObjectFactory
> From: dmik...@gopivotal.com
> Date: Mon, 16 Sep 2013 10:05:14 -0400
> To: users@tomcat.apache.org
>
> On Sep 16, 2013, at 9:43 AM, Xavier Dury <kal...@hotmail.com> wrote:
>
>> I built tomcat from trunk (rev 1523639) and I'm having the same issue I had
>> with glassfish EL implementation when using overloaded methods:
>>
>> javax.el.ELException: Cannot convert ./ of type class java.lang.String to
>> class java.net.URI
>> at org.apache.el.lang.ELSupport.coerceToType(ELSupport.java:482)
>> at
>> org.apache.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:48)
>> at javax.el.ELContext.convertToType(ELContext.java:473)
>> at
>> org.apache.el.lang.EvaluationContext.convertToType(EvaluationContext.java:155)
>> at javax.el.ELUtil.invokeConstructor(ELUtil.java:261)
>> at javax.el.StaticFieldELResolver.invoke(StaticFieldELResolver.java:203)
>> at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
>> at org.apache.el.parser.AstFunction.getValue(AstFunction.java:138)
>> at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:188)
>> at javax.el.ELProcessor.getValue(ELProcessor.java:129)
>> at javax.el.ELProcessor.eval(ELProcessor.java:115)
>> at
>> org.apache.naming.factory.ExpressionFactoryTest.elImplementationShouldWork(ExpressionFactoryTest.java:43)
>>
>> So I guess it's normal behaviour, isn't it?
>
> No. Your example works fine for me, rev# 1523651.
>
> public class ElFileTest {
> @Test
> public void testElAndFile() throws IOException {
> ELProcessor proc = new ELProcessor();
> proc.getELManager().importClass("java.io.File");
> File f = (File) proc.eval("File('./')");
> Assert.assertEquals(new File("./").getCanonicalPath(), f.getCanonicalPath());
> }
> }
>
> Dan
>
>>
>> I don't think EL spec does mandate implementations to make their best effort
>> to find a suitable method when invoking overloaded methods.
>>
>> Xavier
>>
>> ----------------------------------------
>>> Subject: Re: Using EL expressions in an ObjectFactory
>>> From: dmik...@gopivotal.com
>>> Date: Mon, 16 Sep 2013 07:48:33 -0400
>>> To: users@tomcat.apache.org
>>>
>>> On Sep 16, 2013, at 3:03 AM, Xavier Dury <kal...@hotmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I switched to org.apache.tomcat:tomcat-jasper-el:8.0.0-RC1 as javax.el 3.0
>>>> implementation and tested with the following code:
>>>>
>>>> ELProcessor processor = new ELProcessor();
>>>> processor.getELManager().importClass("java.io.File");
>>>> processor.eval("File('./')");
>>>>
>>>> but I get the following error:
>>>>
>>>> javax.el.ELException: Function ':File' not found
>>>> at org.apache.el.parser.AstFunction.getValue(AstFunction.java:136)
>>>> at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:188)
>>>> at javax.el.ELProcessor.getValue(ELProcessor.java:129)
>>>> at javax.el.ELProcessor.eval(ELProcessor.java:115)
>>>> at
>>>> org.apache.naming.factory.ExpressionFactoryTest.elImplementationShouldWork(ExpressionFactoryTest.java:43)
>>>>
>>>> Are methods importClass, importStatic and importPackage on ELManager
>>>> already implemented in apache EL?
>>>
>>> Sorry, I don't think I was clear enough in my last response. This does not
>>> work with Tomcat 8.0.0-RC1, but has been fixed (see the bug I referenced
>>> earlier). You'll need to either build and use Tomcat trunk or wait until
>>> the next RC release is available.
>>>
>>> Dan
>>>
>>>>
>>>> Regards,
>>>>
>>>> Xavier
>>>>
>>>> ----------------------------------------
>>>>> Subject: Re: Using EL expressions in an ObjectFactory
>>>>> From: dmik...@gopivotal.com
>>>>> Date: Fri, 13 Sep 2013 15:38:29 -0400
>>>>> To: users@tomcat.apache.org
>>>>>
>>>>> On Sep 13, 2013, at 3:27 AM, Xavier Dury <kal...@hotmail.com> wrote:
>>>>>
>>>>>> When I try the following:
>>>>>>
>>>>>> ELProcessor processor = new ELProcessor();
>>>>>> processor.getELManager().importClass("java.io.File");
>>>>>> processor.eval("File('./')");
>>>>>>
>>>>>> I get javax.el.ELException: java.lang.IllegalArgumentException: Cannot
>>>>>> convert ./ of type class java.lang.String to class java.net.URI.
>>>>>>
>>>>>> I'm using glassfish javax.el 3.0 implementation for my tests. Maybe the
>>>>>> problem comes from this specific implementation.
>>>>>
>>>>> Yes, that would be the problem. I've noticed the same behavior
>>>>> w/GlassFish's EL 3.0 implementation. Try building Tomcat trunk and using
>>>>> it's implementation or using the next Tomcat 8 RC when it's available.
>>>>> Neither should have that problem.
>>>>>
>>>>> Dan
>>>>>
>>>>>
>>>>>>
>>>>>> ----------------------------------------
>>>>>>> Subject: Re: Using EL expressions in an ObjectFactory
>>>>>>> From: dmik...@gopivotal.com
>>>>>>> Date: Thu, 12 Sep 2013 17:10:21 -0400
>>>>>>> To: users@tomcat.apache.org
>>>>>>>
>>>>>>> On Sep 12, 2013, at 7:58 AM, Xavier Dury <kal...@hotmail.com> wrote:
>>>>>>>
>>>>>>>> Ok,
>>>>>>>>
>>>>>>>> I fixed the styling and the documentation. If anything else must be
>>>>>>>> changed, don't hesitate.
>>>>>>>
>>>>>>> In your docs, you state the following remark...
>>>>>>>
>>>>>>> "Try to avoid overloaded methods/constructors as much as possible in EL
>>>>>>> 3.0 expression as the ELProcessor will use the first one it will find
>>>>>>> by reflection."
>>>>>>>
>>>>>>> Can you clarify what you mean by this? There was a problem in RC-1 that
>>>>>>> sounds similar, but it's been fixed.
>>>>>>>
>>>>>>> https://issues.apache.org/bugzilla/show_bug.cgi?id=55483
>>>>>>>
>>>>>>> Is this a problem in trunk? Point being, if you're seeing an issue with
>>>>>>> EL 3.0, we should try to fix it.
>>>>>>>
>>>>>>> Dan
>>>>>>>
>>>>>>>
>>>>>>>> ----------------------------------------
>>>>>>>>> Date: Thu, 12 Sep 2013 12:01:26 +0100
>>>>>>>>> From: ma...@apache.org
>>>>>>>>> To: users@tomcat.apache.org
>>>>>>>>> Subject: Re: Using EL expressions in an ObjectFactory
>>>>>>>>>
>>>>>>>>> On 12/09/2013 11:49, Xavier Dury wrote:
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> I implemented a simple ExpressionFactory @
>>>>>>>>>> https://github.com/kalgon/expression-factory.
>>>>>>>>>>
>>>>>>>>>> I would love to see this ExpressionFactory next to
>>>>>>>>>> org.apache.naming.factory.BeanFactory in tomcat.
>>>>>>>>>
>>>>>>>>> No objections in principle.
>>>>>>>>>
>>>>>>>>> Haven't looked at the new code in detail. A few initial observations:
>>>>>>>>> - I'm assuming this is a contribution as per section 5 of the Apache
>>>>>>>>> License, version 2.0
>>>>>>>>> - There is no documentation
>>>>>>>>> - Tomcat code standards use 4 spaces for indents, not tabs
>>>>>>>>> - Some @Override markers look to be missing
>>>>>>>>>
>>>>>>>>> Mark
>>>>>>>>>
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>>>>>>>
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>>>>>
>>>>>
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