[jboss-jira] [JBoss JIRA] Created: (JBWEB-87) JasperException for JSP page using generics

Wed Jul 18 15:58:54 EDT 2007

JasperException for JSP page using generics
-------------------------------------------

                 Key: JBWEB-87
                 URL: http://jira.jboss.com/jira/browse/JBWEB-87
             Project: JBoss Web
          Issue Type: Bug
      Security Level: Public (Everyone can see)
         Environment: Customer submitted using AS 4.2.0.GA and Sun JDK 1.5.0_11.  I verified using AS 4.2.0.GA and AS 4.2.1.GA and Sun JDK 1.6.0_02.
            Reporter: David Ward
         Assigned To: Mladen Turk

I am submitting this as a JBoss Web bug; not sure if it should have been submitted as an AS bug instead...

This test.jsp page does not compile in AS 4.2.0 or AS 4.2.1:

<%@page contentType="text/html" import="java.util.*" %>
<html><head><title>test</title></head><body>
<%
    Vector<String> v = (Vector<String>)request.getSession().getAttribute("v");
    out.println("v: " + v);
%>
</body></html>

However, it does with a workaround (please see "Workaround Description" below).
I believe that this is a bug since we require a 1.5 JVM for AS 4.2.x.

Here is the error without using the workaround:

15:41:21,960 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 4 in the jsp file: /test.jsp
The type Vector is not generic; it cannot be parameterized with arguments <String>
1: <%@page contentType="text/html" import="java.util.*" %>
2: <html><head><title>test</title></head><body>
3: <%
4:     Vector<String> v = (Vector<String>)request.getSession().getAttribute("v");
5:     out.println("v: " + v);
6: %>
7: </body></html>

An error occurred at line: 4 in the jsp file: /test.jsp
Syntax error, parameterized types are only available if source level is 5.0
1: <%@page contentType="text/html" import="java.util.*" %>
2: <html><head><title>test</title></head><body>
3: <%
4:     Vector<String> v = (Vector<String>)request.getSession().getAttribute("v");
5:     out.println("v: " + v);
6: %>
7: </body></html>

An error occurred at line: 4 in the jsp file: /test.jsp
The type Vector is not generic; it cannot be parameterized with arguments <String>
1: <%@page contentType="text/html" import="java.util.*" %>
2: <html><head><title>test</title></head><body>
3: <%
4:     Vector<String> v = (Vector<String>)request.getSession().getAttribute("v");
5:     out.println("v: " + v);
6: %>
7: </body></html>

An error occurred at line: 4 in the jsp file: /test.jsp
Syntax error, parameterized types are only available if source level is 5.0
1: <%@page contentType="text/html" import="java.util.*" %>
2: <html><head><title>test</title></head><body>
3: <%
4:     Vector<String> v = (Vector<String>)request.getSession().getAttribute("v");
5:     out.println("v: " + v);
6: %>
7: </body></html>

Stacktrace:
        at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
        at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
        at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:415)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:619)

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