https://issues.apache.org/bugzilla/show_bug.cgi?id=56612
Bug ID: 56612
Summary: Jasper is not able to parse two consecutive escaped
single quotes in EL
Product: Tomcat 8
Version: 8.0.5
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Jasper
Assignee: dev@tomcat.apache.org
Reporter: pavel.ho...@orchitech.cz
JSP compiler breaks when it encounters two consecutive escaped single quotes in
EL.
Example JSP:
${'\'\''}
Expected result:
''
Result:
org.apache.jasper.JasperException: /test.jsp (line: 1, column: 3)
Unterminated ${ tag
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:276)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:92)
org.apache.jasper.compiler.Parser.parseELExpression(Parser.java:760)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1473)
org.apache.jasper.compiler.Parser.parse(Parser.java:139)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:229)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:200)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:375)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:355)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:342)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:403)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:347)
javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Bug is also present in Tomcat 7.0.53.
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