https://issues.apache.org/bugzilla/show_bug.cgi?id=56179
Bug ID: 56179
Summary: ParseException for EL expression "${((test == true))}"
Product: Tomcat 8
Version: 8.0.3
Hardware: PC
OS: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: EL
Assignee: dev@tomcat.apache.org
Reporter: holger.stenzh...@gmail.com
I have the following JSP (test) file:
<html>
<body>
${((test == true))}
</body>
</html>
In Tomcat 7.0.52 this works fine but in Tomcat 8.0.3 the contained EL
expression throws the following ParseException:
org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for
servlet [jsp] in context with path [/test] threw exception [An exception
occurred processing JSP page /test.jsp at line 3
1: <html>
2: <body>
3: ${((test == true))}
4: </body>
5: </html>
Stacktrace:] with root cause
org.apache.el.parser.ParseException: Encountered " "==" "== "" at line 1,
column 10.
Was expecting one of:
")" ...
"," ...
at org.apache.el.parser.ELParser.generateParseException(ELParser.java:3068)
at org.apache.el.parser.ELParser.jj_consume_token(ELParser.java:2950)
at org.apache.el.parser.ELParser.LambdaParameters(ELParser.java:380)
at
org.apache.el.parser.ELParser.LambdaExpressionOrInvocation(ELParser.java:419)
at org.apache.el.parser.ELParser.NonLiteral(ELParser.java:1533)
at org.apache.el.parser.ELParser.ValuePrefix(ELParser.java:1369)
at org.apache.el.parser.ELParser.Value(ELParser.java:1316)
at org.apache.el.parser.ELParser.Unary(ELParser.java:1298)
at org.apache.el.parser.ELParser.Multiplication(ELParser.java:1060)
at org.apache.el.parser.ELParser.Math(ELParser.java:980)
at org.apache.el.parser.ELParser.Concatenation(ELParser.java:936)
at org.apache.el.parser.ELParser.Compare(ELParser.java:747)
at org.apache.el.parser.ELParser.Equality(ELParser.java:641)
at org.apache.el.parser.ELParser.And(ELParser.java:585)
at org.apache.el.parser.ELParser.Or(ELParser.java:529)
at org.apache.el.parser.ELParser.Choice(ELParser.java:486)
at org.apache.el.parser.ELParser.Assignment(ELParser.java:243)
at org.apache.el.parser.ELParser.Semicolon(ELParser.java:182)
at org.apache.el.parser.ELParser.Expression(ELParser.java:175)
at org.apache.el.parser.ELParser.DynamicExpression(ELParser.java:147)
at org.apache.el.parser.ELParser.CompositeExpression(ELParser.java:44)
at
org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:111)
at org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:168)
at
org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:230)
at
org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:67)
at
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:955)
at org.apache.jsp.test_jsp._jspService(test_jsp.java:65)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:403)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:347)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
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