https://issues.apache.org/bugzilla/show_bug.cgi?id=48112
Summary: Closing curly brace in literal string incorrectly
treated as expression terminator.
Product: Tomcat 6
Version: 6.0.20
Platform: PC
OS/Version: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: Jasper
AssignedTo: dev@tomcat.apache.org
ReportedBy: schnake.mich...@t-online.de
On tomcat 6.0.20 something like the following line in a JSP causes a exception:
<c:out value="${fn:trim('{world}')}"/>
After removing the closing curly brace from the literal ('{world}' -> '{world')
the JSP works. This behaviour seems specific to 6.0.20, as on 6.0.18 and 6.0.16
the line above works fine.
Example of exception:
=====================
org.apache.jasper.JasperException: An exception occurred processing JSP page
/test.jsp at line 11
8: <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
9: </head>
10: <body>
11: <c:out value="${fn:trim('{world}')}"/>
12: </body>
13: </html>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
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)
root cause
javax.el.ELException: Error Parsing: ${fn:trim('{world}
org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:125)
org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:150)
org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:194)
org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:934)
org.apache.jsp.test_jsp._jspx_meth_c_005fout_005f0(test_jsp.java:98)
org.apache.jsp.test_jsp._jspService(test_jsp.java:72)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
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)
root cause
org.apache.el.parser.ParseException: Encountered " <ILLEGAL_CHARACTER> "\' ""
at line 1, column 11.
Was expecting one of:
<INTEGER_LITERAL> ...
<FLOATING_POINT_LITERAL> ...
<STRING_LITERAL> ...
"true" ...
"false" ...
"null" ...
"(" ...
")" ...
"!" ...
"not" ...
"empty" ...
"-" ...
<IDENTIFIER> ...
org.apache.el.parser.ELParser.generateParseException(ELParser.java:2142)
org.apache.el.parser.ELParser.jj_consume_token(ELParser.java:2024)
org.apache.el.parser.ELParser.Function(ELParser.java:1207)
org.apache.el.parser.ELParser.NonLiteral(ELParser.java:1114)
org.apache.el.parser.ELParser.ValuePrefix(ELParser.java:1016)
org.apache.el.parser.ELParser.Value(ELParser.java:965)
org.apache.el.parser.ELParser.Unary(ELParser.java:947)
org.apache.el.parser.ELParser.Multiplication(ELParser.java:711)
org.apache.el.parser.ELParser.Math(ELParser.java:631)
org.apache.el.parser.ELParser.Compare(ELParser.java:443)
org.apache.el.parser.ELParser.Equality(ELParser.java:337)
org.apache.el.parser.ELParser.And(ELParser.java:281)
org.apache.el.parser.ELParser.Or(ELParser.java:225)
org.apache.el.parser.ELParser.Choice(ELParser.java:182)
org.apache.el.parser.ELParser.Expression(ELParser.java:174)
org.apache.el.parser.ELParser.DynamicExpression(ELParser.java:146)
org.apache.el.parser.ELParser.CompositeExpression(ELParser.java:43)
org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:93)
org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:150)
org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:194)
org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:934)
org.apache.jsp.test_jsp._jspx_meth_c_005fout_005f0(test_jsp.java:98)
org.apache.jsp.test_jsp._jspService(test_jsp.java:72)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
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)
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