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Posted to taglibs-user@tomcat.apache.org by Georg Filios <fi...@creative-tank.com> on 2004/06/24 21:09:15 UTC
Undeterministic Reflection Exception, Using EL, JSTL, and Torque Objects
Hi,
I do hope that I am here in the right group.
I have a unpleasent error, for which I havent found a solution on
several days research.
Here is my Scenario:
I do have a bug i.e. an Exception which occurs ocassionally but not
always.
Using Tomcat 5.0.24 and Servlet 2.4 I try to display a User-Object with
the <c:out tag.
The User-Object was generated with Torque, has different getters and
setters.
The setters in my User-Object class are Torque generated. I have listed
these setters below.
Only 3 of them have different parameters for the same Name - the
setPrimaryKey setters,
which I cant unfortunately not change (since generated by Torque).
Sometimes, but not always, I get during the display with <c:out
value="${User.userName}" />
a java.lang.NoClassDefFoundError Exception.
Any Ideas how to solve this and what might be the cause??
This is a bit annoying, since I I dont want to wrap all my Torque
Classes.
Thanks,
Georg
Here is the exception:
2004-06-24 20:26:18 StandardWrapperValve[action]: Servlet.service() for
servlet action threw exception
java.lang.NoClassDefFoundError
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at
org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluat
orImpl.java:263)
at
org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluat
orImpl.java:190)
at
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContex
tImpl.java:899)
at
org.apache.jsp.WEB_002dINF.jsp.app.security.manage.user_jsp._jspx_meth_c
_out_0(user_jsp.java:338)
Here are the setters
setAccessCounterForSession OUT=void IN=int
setAccessCounter OUT=void IN=int
setCity OUT=void IN=java.lang.String
setConfirmedBool OUT=void IN=boolean
setConfirmed OUT=void IN=java.lang.String
setCountry OUT=void IN=java.lang.String
setCreateDate OUT=void IN=java.util.Date
setEmail OUT=void IN=java.lang.String
setFirstName OUT=void IN=java.lang.String
setId OUT=void IN=int
setLastAccessDate OUT=void IN=
setLastAccessDate OUT=void IN=java.util.Date
setLastLogin OUT=void IN=java.util.Date
setLastModified OUT=void IN=java.util.Date
setLastName OUT=void IN=java.lang.String
setLoggedIn OUT=void IN=boolean
setModified OUT=void IN=boolean
setName OUT=void IN=java.lang.String
setNew OUT=void IN=boolean
setPassword OUT=void IN=java.lang.String
setPhone OUT=void IN=java.lang.String
setPostCode OUT=void IN=java.lang.String
setPrimaryKey OUT=void IN=[Lorg.apache.torque.om.SimpleKey;
setPrimaryKey OUT=void IN=java.lang.String
setPrimaryKey OUT=void IN=org.apache.torque.om.ObjectKey
setStreet OUT=void IN=java.lang.String
setUserId OUT=void IN=int
setUserName OUT=void IN=java.lang.String
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Re: Undeterministic Reflection Exception, Using EL, JSTL, and Torque Objects
Posted by Georg Filios <fi...@creative-tank.com>.
Hi Martin,
hmm, It was my guess from the last line of the Stacktrace (as I pasted
it), that the root is in the CompiledJspPage:
> at
org.apache.jsp.WEB_002dINF.jsp.app.security.manage.user_jsp._jspx_meth_c
_out_0(user_jsp.java:338)
Here is the Line 338 of user_jsp.java. As I understand this, that this
is the cause where the User Object, which is stored
under the key "RequestUser" is evaluated.
> _jspx_th_c_out_0.setValue((java.lang.Object)
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(
> "${RequestUser.userName}",
java.lang.Object.class,
> (PageContext)_jspx_page_context,
null, false));
Am 24.06.2004 um 21:29 schrieb Martin Cooper:
> Something doesn't jibe here. You are saying that the evaluation of
> ${User.userName} is failing, but the stack trace you provide shows
> ArraySuffix in the call stack. I can't see how that class could be
> involved in evaluating the expression you give. Are you sure that is
> the expression that's failing?
>
> --
> Martin Cooper
>
>
> On Thu, 24 Jun 2004, Georg Filios wrote:
>
>> Hi,
>>
>> I do hope that I am here in the right group.
>> I have a unpleasent error, for which I havent found a solution on
>> several days research.
>>
>> Here is my Scenario:
>> I do have a bug i.e. an Exception which occurs ocassionally but not
>> always.
>> Using Tomcat 5.0.24 and Servlet 2.4 I try to display a User-Object
>> with
>> the <c:out tag.
>>
>> The User-Object was generated with Torque, has different getters and
>> setters.
>> The setters in my User-Object class are Torque generated. I have
>> listed these setters below.
>> Only 3 of them have different parameters for the same Name - the
>> setPrimaryKey setters,
>> which I cant unfortunately not change (since generated by Torque).
>>
>> Sometimes, but not always, I get during the display with <c:out
>> value="${User.userName}" />
>> a java.lang.NoClassDefFoundError Exception.
>>
>> Any Ideas how to solve this and what might be the cause??
>>
>> This is a bit annoying, since I I dont want to wrap all my Torque
>> Classes.
>>
>> Thanks,
>>
>> Georg
>>
>>
>> Here is the exception:
>> 2004-06-24 20:26:18 StandardWrapperValve[action]: Servlet.service()
>> for servlet action threw exception
>> java.lang.NoClassDefFoundError
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j
>> ava:39)
>> at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess
>> or Impl.java:25)
>> at java.lang.reflect.Method.invoke(Method.java:324)
>> at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314)
>> at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
>> at
>> org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvalu
>> at orImpl.java:263)
>> at
>> org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvalu
>> at orImpl.java:190)
>> at
>> org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageCont
>> ex tImpl.java:899)
>> at
>> org.apache.jsp.WEB_002dINF.jsp.app.security.manage.user_jsp._jspx_meth
>> _c _out_0(user_jsp.java:338)
>>
>>
>>
>>
>>
>> Here are the setters
>> setAccessCounterForSession OUT=void IN=int
>> setAccessCounter OUT=void IN=int
>> setCity OUT=void IN=java.lang.String
>> setConfirmedBool OUT=void IN=boolean
>> setConfirmed OUT=void IN=java.lang.String
>> setCountry OUT=void IN=java.lang.String
>> setCreateDate OUT=void IN=java.util.Date
>> setEmail OUT=void IN=java.lang.String
>> setFirstName OUT=void IN=java.lang.String
>> setId OUT=void IN=int
>> setLastAccessDate OUT=void IN=
>> setLastAccessDate OUT=void IN=java.util.Date
>> setLastLogin OUT=void IN=java.util.Date
>> setLastModified OUT=void IN=java.util.Date
>> setLastName OUT=void IN=java.lang.String
>> setLoggedIn OUT=void IN=boolean
>> setModified OUT=void IN=boolean
>> setName OUT=void IN=java.lang.String
>> setNew OUT=void IN=boolean
>> setPassword OUT=void IN=java.lang.String
>> setPhone OUT=void IN=java.lang.String
>> setPostCode OUT=void IN=java.lang.String
>> setPrimaryKey OUT=void IN=[Lorg.apache.torque.om.SimpleKey;
>> setPrimaryKey OUT=void IN=java.lang.String
>> setPrimaryKey OUT=void IN=org.apache.torque.om.ObjectKey
>> setStreet OUT=void IN=java.lang.String
>> setUserId OUT=void IN=int
>> setUserName OUT=void IN=java.lang.String
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: taglibs-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: taglibs-user-help@jakarta.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: taglibs-user-unsubscribe@jakarta.apache.org
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>
>
cheers,
georg
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Re: Undeterministic Reflection Exception, Using EL, JSTL, and Torque
Objects
Posted by Martin Cooper <ma...@apache.org>.
Something doesn't jibe here. You are saying that the evaluation of
${User.userName} is failing, but the stack trace you provide shows
ArraySuffix in the call stack. I can't see how that class could be
involved in evaluating the expression you give. Are you sure that is the
expression that's failing?
--
Martin Cooper
On Thu, 24 Jun 2004, Georg Filios wrote:
> Hi,
>
> I do hope that I am here in the right group.
> I have a unpleasent error, for which I havent found a solution on several
> days research.
>
> Here is my Scenario:
> I do have a bug i.e. an Exception which occurs ocassionally but not always.
> Using Tomcat 5.0.24 and Servlet 2.4 I try to display a User-Object with
> the <c:out tag.
>
> The User-Object was generated with Torque, has different getters and setters.
> The setters in my User-Object class are Torque generated. I have listed these
> setters below.
> Only 3 of them have different parameters for the same Name - the
> setPrimaryKey setters,
> which I cant unfortunately not change (since generated by Torque).
>
> Sometimes, but not always, I get during the display with <c:out
> value="${User.userName}" />
> a java.lang.NoClassDefFoundError Exception.
>
> Any Ideas how to solve this and what might be the cause??
>
> This is a bit annoying, since I I dont want to wrap all my Torque Classes.
>
> Thanks,
>
> Georg
>
>
> Here is the exception:
> 2004-06-24 20:26:18 StandardWrapperValve[action]: Servlet.service() for
> servlet action threw exception
> java.lang.NoClassDefFoundError
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
> Impl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:324)
> at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314)
> at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
> at
> org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluat
> orImpl.java:263)
> at
> org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluat
> orImpl.java:190)
> at
> org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContex
> tImpl.java:899)
> at
> org.apache.jsp.WEB_002dINF.jsp.app.security.manage.user_jsp._jspx_meth_c
> _out_0(user_jsp.java:338)
>
>
>
>
>
> Here are the setters
> setAccessCounterForSession OUT=void IN=int
> setAccessCounter OUT=void IN=int
> setCity OUT=void IN=java.lang.String
> setConfirmedBool OUT=void IN=boolean
> setConfirmed OUT=void IN=java.lang.String
> setCountry OUT=void IN=java.lang.String
> setCreateDate OUT=void IN=java.util.Date
> setEmail OUT=void IN=java.lang.String
> setFirstName OUT=void IN=java.lang.String
> setId OUT=void IN=int
> setLastAccessDate OUT=void IN=
> setLastAccessDate OUT=void IN=java.util.Date
> setLastLogin OUT=void IN=java.util.Date
> setLastModified OUT=void IN=java.util.Date
> setLastName OUT=void IN=java.lang.String
> setLoggedIn OUT=void IN=boolean
> setModified OUT=void IN=boolean
> setName OUT=void IN=java.lang.String
> setNew OUT=void IN=boolean
> setPassword OUT=void IN=java.lang.String
> setPhone OUT=void IN=java.lang.String
> setPostCode OUT=void IN=java.lang.String
> setPrimaryKey OUT=void IN=[Lorg.apache.torque.om.SimpleKey;
> setPrimaryKey OUT=void IN=java.lang.String
> setPrimaryKey OUT=void IN=org.apache.torque.om.ObjectKey
> setStreet OUT=void IN=java.lang.String
> setUserId OUT=void IN=int
> setUserName OUT=void IN=java.lang.String
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: taglibs-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: taglibs-user-help@jakarta.apache.org
>
>
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