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Posted to dev@tomcat.apache.org by bu...@apache.org on 2010/10/20 10:04:43 UTC

DO NOT REPLY [Bug 50120] New: .class in a jsp results in an invalid idetifier

https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

           Summary: .class in a jsp results in an invalid idetifier
           Product: Tomcat 7
           Version: 7.0.2
          Platform: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Jasper
        AssignedTo: dev@tomcat.apache.org
        ReportedBy: joker8achtung1@googlemail.com


when trying to access a getClass() method within a jsp, the following exception
occurs:

org.apache.jasper.JasperException: /jsp/example.jsp(68,6) "${memBean.class.name
== text}" 
contains invalid expression(s): javax.el.ELException: [class] is not a valid
Java identifier

is this a bug or a desired feature of 7.0.2?

as far as i've noticed, the validation is done in org.pache.el.util.Validation
whereby invalidIdentifiers contains the class keyword
by the way, validation is done currently case-insensitive, so *.Class.Name
would be a work-around

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

--- Comment #2 from Konstantin Kolinko <kn...@gmail.com> 2010-10-20 06:48:36 EDT ---
"class" is a reserved word in Java. Note, that you can write your expression as
"${memBean['class'].name == text}"

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

Eugene Petrenko <eu...@jetbrains.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |

--- Comment #4 from Eugene Petrenko <eu...@jetbrains.com> 2010-11-15 09:48:01 EST ---
This is the breaking change for us to switch to Tomcat7. We have quite a big
codebase to search for keyword usages in .jsp/.tag files. Is there a
property/parameters/setting to enforce older behavior (like in 6.0) of jsp
compiler?

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

Konstantin Kolinko <kn...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |DUPLICATE

--- Comment #6 from Konstantin Kolinko <kn...@gmail.com> 2010-11-15 10:57:23 EST ---


*** This bug has been marked as a duplicate of bug 49217 ***

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID
         OS/Version|                            |All

--- Comment #1 from Mark Thomas <ma...@apache.org> 2010-10-20 06:39:52 EDT ---
This is spec required behaviour. Further questions should be addressed to the
users mailing list.

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |INVALID

--- Comment #5 from Mark Thomas <ma...@apache.org> 2010-11-15 10:51:46 EST ---
The same fix has been / will be applied to Tomcat 6.

In the short-term you can use org.apache.el.parser.SKIP_IDENTIFIER_CHECK to
bypass the check but that is not a viable long term solution. As time consuming
as it may be, you'll need to review your apps for illegal EL and fix any
issues.

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DO NOT REPLY [Bug 50120] .class in a jsp results in an invalid idetifier

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=50120

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |eugene.petrenko@jetbrains.c
                   |                            |om

--- Comment #3 from Mark Thomas <ma...@apache.org> 2010-11-15 07:48:45 EST ---
*** Bug 50272 has been marked as a duplicate of this bug. ***

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