type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: /main/index.jsp(79,6) "${not empty(LOGINNAME_OA)&¬ empty(LOGINPWD_OA)&¬ empty(ISCHECK_OA)&¬ empty(OAIP)}" contains invalid expression(s): javax.el.ELException: Function ':empty' not found
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:198)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1151)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:821)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1512)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2393)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2399)
org.apache.jasper.compiler.Node$Root.accept(Node.java:489)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
org.apache.jasper.compiler.Validator.validate(Validator.java:1739)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:166)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:315)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:282)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.philisense.base.MessageFilter.doFilter(MessageFilter.java:26)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
com.philisense.base.AuthenticationFilter.doFilter(AuthenticationFilter.java:105)
com.philisense.base.MessageFilter.doFilter(MessageFilter.java:26)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
今天在用EL表达式时发现empty不太好使出现如上的错误，但在同样的代码在他人机器好使，于是查了一下发现反应此问题还挺多的，有许多人反映跟jdk和tomcat的版本相关，无意间在网上发现了这篇贴子的回帖解决了此问题（将not empty(xx)改为not empty (xx),即是在empty与()之间加上空格，具体看帖子的绿色字体的回帖解释），在此分享一下：
链接地址：http://jira.codehaus.org/browse/MRM-905
EL Expression failed with empty/not functions
Details
-
Type: Bug
-
Status: Closed
-
Priority: Blocker
-
Resolution:Fixed
-
Affects Version/s:1.1
-
Fix Version/s:1.1.2
-
Component/s:Web Interface
-
Labels:None
-
Environment:activation-1.1.jar
mail-1.4.jar
derby-10.1.3.1.jar
-
Number of attachments :3
Description
After installing as Wiki said, as a tomcat WAR, i get parsing error in some JSP/TAG code.
Some examples :
org.apache.jasper.JasperException: /WEB-INF/jsp/components/companyLogo.jsp(22,0) "${!empty(organisationLogo)}" contient d'incorrecte(s) expression(s): javax.el.ELException: Function ':empty' not found
org.apache.jasper.JasperException: /WEB-INF/tags/currentWWUrl.tag(29,0) "${!empty(action) && !empty(namespace)}" contient d'incorrecte(s) expression(s): javax.el.ELException: Function ':empty' not found
I've added logs as attachments.
The workaround is very simple :
replace EL exepressions containing "empty(" with "empty (", and "not(" with "not (" as EL expression requires.
This is a VERY strange error since i've successufully setup Archiva on my profesionnal server, and i got these error on two distinct personnal systems.
I'll check the professionnal/personnal system differences.
Attachments
Activity
I couldn't replicate this on trunk (-r685734), with the following environment:
- ubuntu linux
- java version "1.5.0_11"
- tomcat 6.0.14
- activation-1.1.jar, derby-10.1.3.1.jar and mail-1.4.jar
I was now able to replicate this issue when I deployed Archiva to Tomcat 6.0.18. I don't see the error in 5.5.17 and 6.0.14 though.. there must be a conflict with the EL lib included in 6.0.18. I'll try your suggestion above to fix this, thanks!
Yes!
that's what i just found during the professionnal/personnal system differences.
Same JDK, but 6.0.14 Tomcat version.
Same here.
My configuration:
Ubuntu Server 8.04
java 1.6.0_06
tomcat 6.0.18
Archiva 1.1.1 deployed as a .war
Stacktrace starts with:
org.apache.jasper.JasperException: /WEB-INF/jsp/admin/repositories.jsp(53,0) "${empty(managedRepositories)}" contains invalid expression(s): javax.el.ELException: Function ':empty' not found
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
The suggested fix works for me. Fabrice, you made my day!
I ran
sudo sed -i.BAK -e "s/empty(/empty (/g" *.jsp*
sudo sed -i.BAK -e "s/not(/not (/g" *.jsp*
over the jsp folder and it works like a charm.
So the question is, is "empty(" invalid or not. There have been quite some changes in jasper between
6.0.14 and 6.0.18 (http://tomcat.apache.org/tomcat-6.0-doc/changelog.html), but i'm really not into the jsp stuff, so I couldn't tell...
Also, i think there are some common code with Continuum, since the same error (but non blocker) occurs in the header.
As said in the EL specification (simplified version)
http://java.sun.com/products/jsp/syntax/2.0/syntaxref207.html
${ Expression }
Expression = {(UnaryOp Expression) | Value }
UnaryOp = {'-' | ! | not | empty }
Value = {ValuePrefix | (Value ValueSuffix) }
ValuePrefix = {Literal | '('Expression')' | ImplicitObject | Java language identifier}
ValueSuffix = { . Identifier | '['Expression']'}
Literal = {StringLiteral | null}
StringLiteral = {'[^(' | \) | \' | \\]+' | "[^(" | \) | \" | \\]+"}
If we read well the Tomcat error is right : since the grammar does not validate :
empty("hello")
but validate :
empty ("hello")
Ok, thanks a lot for both of your help on this! Would either of you like or is interested to submit a patch for the fix?
The patch did from the revision 686186.
The root path of this patch is http://svn.apache.org/repos/asf/archiva/trunk/archiva-modules/archiva-web/archiva-webapp
Thanks for the patch Fabrice! I already applied it in trunk -r686665 and tested it with Tomcat versions 5.5.17, 6.0.14 and 6.0.18. It works nicely