0003956: resin incorrectly builds JSP tag classes - Mantis

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ID

Category

Severity

Reproducibility

Date Submitted

Last Update

0003956

[Resin]

minor

always

03-19-10 19:19

03-22-10 12:51

Reporter

rmann

View Status

public

Assigned To

Priority

normal

Resolution

fixed

Status

closed

Product Version

Summary

0003956: resin incorrectly builds JSP tag classes

Description

I have a JSP tag that invokes the fmt:formatNumber tag. When resin generates the Java for this tag, it attempts to set my tag's instance as the parent of the format number instance. To do this, it attempts to cast it to a javax.servlet.jsp.tagext.Tag. Unfortunately, the class my tag inherits is com.caucho.jsp.java.JspTagSupport, which inherits ultimately JspTag, not Tag, which is what it's trying to cast to.

I've enclosed the generated Java. The offending line is 0000213.

As near as I can tell, my tag's inheritance chain is:

_jsp._WEB_22dINF._tags._lz._durT__tag extends
com.caucho.jsp.java.JspTagSupport extends
com.caucho.jsp.java.JspTagSupport extends
javax.servlet.jsp.tagext.SimpleTagSupport (extends java.lang.Object, implements javax.servlet.jsp.tagext.SimpleTag)

javax.servlet.jsp.tagext.SimpleTag extends javax.servlet.jsp.tagext.JspTag extends nothing.

And it's calling com.caucho.jstl.rt.FormatNumberTag.setParent(), which is really
javax.servlet.jsp.tagext.BodyTagSupport.setParent(), which is really
javax.servlet.jsp.tagext.TagSupport.setParent(javax.servlet.jsp.tagext.Tag).

javax.servlet.jsp.tagext.Tag inherits from javax.servlet.jsp.tagext.JspTag

So, while they both have a common parent interface in JspTag, the case is from one branch to another under that.

Additional Information

Stack trace of the exception:

[03-19 18:44:38.037] {http://*:80-6} [^] WARNING (com.caucho.server.webapp.ErrorPageManager) javax.servlet.ServletException: javax.servlet.ServletException: com.caucho.jsp.QJspException: java.lang.ClassCastException: _jsp._WEB_22dINF._tags._lz._durT__tag cannot be cast to javax.servlet.jsp.tagext.Tag
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:286)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
[03-19 18:44:38.037] {http://*:80-6} [^] at javax.servlet.http.HttpServlet.service(HttpServlet.java:119)
[03-19 18:44:38.037] {http://*:80-6} [^] at javax.servlet.http.HttpServlet.service(HttpServlet.java:96)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:109)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:124)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:88)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:88)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.latencyzero.satdb.SecurityFilter.doFilter(SecurityFilter.java:215)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:88)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:183)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:103)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:286)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:780)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection.dispatchRequest(TcpConnection.java:600)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection.handleRequestsImpl(TcpConnection.java:566)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection.handleRequests(TcpConnection.java:519)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection$AcceptTask.doTask(TcpConnection.java:1100)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection$ConnectionReadTask.runThread(TcpConnection.java:1037)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.connection.TcpConnection$AcceptTask.run(TcpConnection.java:1068)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.util.ThreadPool$PoolThread.runTasks(ThreadPool.java:901)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.util.ThreadPool$PoolThread.run(ThreadPool.java:866)
[03-19 18:44:38.037] {http://*:80-6} [^] Caused by: javax.servlet.ServletException: com.caucho.jsp.QJspException: java.lang.ClassCastException: _jsp._WEB_22dINF._tags._lz._durT__tag cannot be cast to javax.servlet.jsp.tagext.Tag
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.jsp.PageContextImpl.handlePageException(PageContextImpl.java:1255)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._jsp._mission__jsp._jspService(_mission__jsp.java:30)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.jsp.JavaPage.service(JavaPage.java:61)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.jsp.Page.pageservice(Page.java:535)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:195)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:286)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:283)
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:121)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.commands.servlet.PerformForward.handleAsForward(PerformForward.java:113)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:96)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:54)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
[03-19 18:44:38.037] {http://*:80-6} [^] at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
[03-19 18:44:38.037] {http://*:80-6} [^] ... 24 more
[03-19 18:44:38.037] {http://*:80-6} [^] Caused by: com.caucho.jsp.QJspException: java.lang.ClassCastException: _jsp._WEB_22dINF._tags._lz._durT__tag cannot be cast to javax.servlet.jsp.tagext.Tag
[03-19 18:44:38.037] {http://*:80-6} [^] at com.caucho.jsp.QJspException.createJspException(QJspException.java:74)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._tags._lz._durT__tag.doTag(_durT__tag.java:39)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._jsp._mission__jsp._jspService(_mission__jsp.java:194)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._jsp._mission__jsp._jspService(_mission__jsp.java:28)
[03-19 18:44:38.037] {http://*:80-6} [^] ... 38 more
[03-19 18:44:38.037] {http://*:80-6} [^] Caused by: java.lang.ClassCastException: _jsp._WEB_22dINF._tags._lz._durT__tag cannot be cast to javax.servlet.jsp.tagext.Tag
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._tags._lz._durT__tag$TagState.get_jsp_FormatNumberTag_0(_durT__tag.java:213)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._tags._lz._durT__tag.doTag(_durT__tag.java:90)
[03-19 18:44:38.037] {http://*:80-6} [^] at _jsp._WEB_22dINF._tags._lz._durT__tag.doTag(_durT__tag.java:35)
[03-19 18:44:38.037] {http://*:80-6} [^] ... 40 more

tagcast.zip [^] (4,147 bytes) 03-19-10 19:19

Relationships

Notes
(0004477) alex 03-22-10 08:45	Rick, 4.0.5 has had many changes done to JSP generation in the area of tag generation. We also run JSP TCK against it. There may still be errors that we did not catch but you may want to go straight to 4.0.5, the problem is very likely to have been fixed in that version.

(0004478) rmann 03-22-10 12:38	I'd love to go to 4.0.5, but it won't stay up. It dies after less than an hour.

(0004479) rmann 03-22-10 12:45	I can verify the the tag issue is fixed in 4.0.5. Now, if I can just rely on 4.0.5 staying up. I fails to run for long on both my old Linux RH 7.2, and my new Nexenta/OpenSolaris. 4.0.4 runs solidly.

(0004480) alex 03-22-10 12:50	OK. I'll close this issue then. Can you open a new one with the 'finest' logs from your unstable 4.0.5 (resin.xml/resin/log/level finest for com.caucho). Please attach the configuration too. Also, when you start resin please make sure to supply -verbose, that way we get more info on your environment. Thanks a bunch!

Issue History
Date Modified	Username	Field	Change
03-19-10 19:19	rmann	New Issue
03-19-10 19:19	rmann	File Added: tagcast.zip
03-19-10 19:19	rmann	Issue Monitored: rmann
03-22-10 08:45	alex	Note Added: 0004477
03-22-10 12:38	rmann	Note Added: 0004478
03-22-10 12:45	rmann	Note Added: 0004479
03-22-10 12:50	alex	Note Added: 0004480
03-22-10 12:51	alex	Status	new => closed
03-22-10 12:51	alex	Resolution	open => fixed
03-22-10 12:51	alex	Fixed in Version	=> 4.0.5

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