9:18 a.m.
Paul Pogonyshev created WFLY-4455:
-------------------------------------
Summary: JSP function lookup is broken if EL expression contains map or set
literal
Key: WFLY-4455
URL: https://issues.jboss.org/browse/WFLY-4455
Project: WildFly
Issue Type: Bug
Affects Versions: 8.2.0.Final
Reporter: Paul Pogonyshev
Assignee: Jason Greene
The attached trivial applications consists of 'test.jsp' and
'WEB-INF/bug.tld' files. The latter includes only one function mapped from the
standard Java library. It is not relevant what it does, only that it is mapped. File
'test.jsp' contains this expession:
${{}; bug:dummy()}
Please note that without '{};' (if it is removed or e.g. replaced with '1;) it
works correctly, printing something like 'java.lang.Runtime@...'. (In my real
application this is 'my:function1 ({ x: y }) && my:function2 (...)'.
Lookup of the first function succeeds, but lookup of the second one fails. If I replace
map literal with something else, expression is compiled just fine.)
However, if expression contains set (or map) literal, JSP compiler fails with this
exception:
15:05:24,317 ERROR [io.undertow.request] (default task-1) UT005023: Exception handling
request to /jsp-bug/test.jsp: org.apache.jasper.JasperException: JBWEB004038: An exception
occurred processing JSP page /test.jsp at line 7
4: </head>
5:
6: <body>
7: ${{}; bug:dummy()}
8: </body>
9: </html>
Stacktrace:
at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:494)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:408)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
[jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]
at
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
[undertow-servlet-1.1.0.Final.jar:1.1.0.Final]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
[undertow-core-1.1.0.Final.jar:1.1.0.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[rt.jar:1.8.0_40]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[rt.jar:1.8.0_40]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_40]
Caused by: java.lang.NullPointerException
at
org.apache.jasper.el.FunctionMapperImpl.resolveFunction(FunctionMapperImpl.java:32)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at
com.sun.el.lang.FunctionMapperFactory.resolveFunction(FunctionMapperFactory.java:71)
[javax.el-3.0.1-b05.jar:]
at com.sun.el.lang.ExpressionBuilder.visit(ExpressionBuilder.java:272)
[javax.el-3.0.1-b05.jar:]
at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:172)
[javax.el-3.0.1-b05.jar:]
at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:175)
[javax.el-3.0.1-b05.jar:]
at com.sun.el.lang.ExpressionBuilder.prepare(ExpressionBuilder.java:227)
[javax.el-3.0.1-b05.jar:]
at com.sun.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:238)
[javax.el-3.0.1-b05.jar:]
at
com.sun.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:295)
[javax.el-3.0.1-b05.jar:]
at
com.sun.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:112)
[javax.el-3.0.1-b05.jar:]
at
org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:897)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jsp.test_jsp._jspService(test_jsp.java:61)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69)
[jastow-1.0.0.Final.jar:1.0.0.Final]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
[jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:366)
[jastow-1.0.0.Final.jar:1.0.0.Final]
... 29 more
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Paul Pogonyshev (JIRA)