[SunONE-JATO] Illegal target of jump or branch
Greetings All,
According to the JLS, no single method on a class can be greater than
32K bytes of byte-code. As you know, the bulk of what's in a JSP goes
into it's _jspService method of the resulting translated Servlet. I've
seen several JSP engines that can generate and compile JSP (Servlet)
classes in which the _jspService method is larger than the legal limit.
The result is that you get the exceptions you've described.
If you're using translation-time includes (using the <%@ include ... %>
directive) instead of run-time includes (using the <jsp:include ...>
action tag) then that is contributing to your problem. You should
consider switching to run-time includes. While run-time includes make
the building of the JSP result a little slower, it does help reduce the
size of your generated Servlet code.
If you have JavaScript function definitions in your JSP content,
consider moving that to a separate JavaScript file and referencing the
file with a <script language="JavaScript"...> tag. This can help cut
down the size of the JSP (and the resulting Servlet code) as well as
give the browser a chance to cache the file to avoid downloading it
repetitively on subsequent views of the JSP result (thus saving
bandwidth).
Usually, I find value in reviewing the translated Servlet code to see
where the bulk of the generated code is coming from.
Unfortunately, this is one issue where the same JSP can work on one web
container and break on another. It's all an issue of how your JSP
translator generates the Servlet code - does it generate code that is
very small and concise or not. iPlanet's old JSP engine used to
generate code in such a way that it did a nice job of keeping the
Servlet code small - the translated Servlet would open the original JSP
source file, read it's source into a buffer, and then write out
fragments from that buffer as needed. This was great for keeping down
the size of the _jspService method - several lines of static JSP text
were translated into a single, simple statement that wrote a range of
bytes from a buffer. However, the last time I checked on this, the
newer JSP engine ends up generating a separate out.write(...) statement
for each line of static content in the JSP source. Obviously, this
makes the resulting Servlet code much larger.
Louis W. Lembcke, Principal
Chicago Systems Group
180 N. Stetson, Suite 3200
Chicago, IL 60601 USA
Main Tele: +1 312.444.2760
Facsimile: +1 425.969.6391
<a href="/group/SunONE-JATO/post?protectID=226151192213093194213038203156244089098 144038051217098250238073067158159228020180222009204035181">LLembcke@C...</ a>
<a href="http://www.ChicagoSystemsGroup.com/">http://www.ChicagoSystemsGroup.co m/</a>
--Original Message--
From: Billy Lam [mailto:<a href="/group/SunONE-JATO/post?protectID=014128113213146202169232186219161248102 048234051197">blam@b...</a>]
Sent: Thursday, August 22, 2002 8:28 AM
Subject: RE: [SunONE-JATO] Illegal target of jump or branch
It is working with Resin 2.1.4. However, our targeting container will
be
SunOne. My question is "does SunOne has the same limitation ?"
Thanks
Billy
--Original Message--
From: Todd Fast [mailto:<a href="/group/SunONE-JATO/post?protectID=101233080150035167169232031248066077000 048234051197">Todd.Fast@S...</a>]
Sent: Wednesday, August 21, 2002 7:53 PM
Subject: Re: [SunONE-JATO] Illegal target of jump or branch
This is basically a container bug caused by poor JSP code generation.
The
size of the JSP is definitely the issue. You will need to reduce the
size--possibly substantially--to avoid the issue. One way of doing this
would be to use JATO pagelets to dynamically include portions of the
page
during rendering. (You cannot use translation-time includes because
that
will not avoid the problem.)
Todd
-- Original Message --
From: "billyjolam" <<a href="/group/SunONE-JATO/post?protectID=014128113213146202169232186219161248102 048234051197">blam@b...</a>>
Sent: Wednesday, August 21, 2002 11:59 AM
Subject: [SunONE-JATO] Illegal target of jump or branch
> I got the "Illegal target of jump or branch" one of the page in my
> project. The JSP of this page is large, about 128K. Is this the
> cause? I'm running under Resin 2.0.5.
>
> Here is the Stack dump:
>
> com.iplanet.jato.command.CommandException: Handler
> method "handleBtProceedRequest" threw an exception
> Root cause = [java.lang.VerifyError: (class:
> _mosapp/_mossystem/_pgdealsummary__jsp, method: _jspService
> signature:
> (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServle
> tResponse;)V) Illegal target of jump or branch]
> at
> com.iplanet.jato.view.command.DefaultRequestHandlingCommand.execute
> (DefaultRequestHandlingCommand.java:220)
> at com.iplanet.jato.view.RequestHandlingViewBase.handleRequest
> (RequestHandlingViewBase.java:335)
> at com.iplanet.jato.view.ViewBeanBase.dispatchInvocation
> (ViewBeanBase.java:806)
> at
> com.iplanet.jato.view.ViewBeanBase.invokeRequestHandlerInternal
> (ViewBeanBase.java:637)
> at com.iplanet.jato.view.ViewBeanBase.invokeRequestHandler
> (ViewBeanBase.java:595)
> at com.iplanet.jato.ApplicationServletBase.dispatchRequest
> (ApplicationServletBase.java:760)
> at com.iplanet.jato.ApplicationServletBase.processRequest
> (ApplicationServletBase.java:434)
> at com.iplanet.jato.ApplicationServletBase.doPost
> (ApplicationServletBase.java:312)
> at javax.servlet.http.HttpServlet.service
> (HttpServlet.java:165)
> at javax.servlet.http.HttpServlet.service
> (HttpServlet.java:103)
> at com.caucho.server.http.FilterChainServlet.doFilter
> (FilterChainServlet.java:82)
> at com.caucho.server.http.Invocation.service
> (Invocation.java:288)
> at com.caucho.server.http.CacheInvocation.service
> (CacheInvocation.java:132)
> at com.caucho.server.http.ServletServer.serviceTop
> (ServletServer.java:937)
> at com.caucho.server.http.HttpRequest.handleRequest
> (HttpRequest.java:213)
> at com.caucho.server.http.HttpRequest.handleConnection
> (HttpRequest.java:158)
> at com.caucho.server.TcpConnection.run(TcpConnection.java:140)
> at java.lang.Thread.run(Thread.java:479)
>
> Root cause:
> java.lang.VerifyError: (class:
> _mosapp/_mossystem/_pgdealsummary__jsp, method: _jspService
> signature:
> (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServle
> tResponse;)V) Illegal target of jump or branch
> at java.lang.Class.newInstance0(Native Method)
> at java.lang.Class.newInstance(Class.java:232)
> at com.caucho.jsp.JspManager.loadClass(JspManager.java:275)
> at com.caucho.jsp.JavaGenerator.compile
> (JavaGenerator.java:2430)
> at com.caucho.jsp.JspGenerator.generate(JspGenerator.java:273)
> at com.caucho.jsp.JspParser.parse(JspParser.java:236)
> at com.caucho.jsp.JspParser.parse(JspParser.java:142)
> at com.caucho.jsp.JspManager.createPage(JspManager.java:155)
> at com.caucho.jsp.PageManager.getPage(PageManager.java:340)
> at com.caucho.jsp.PageManager.getPage(PageManager.java:195)
> at com.caucho.jsp.QServlet.getPage(QServlet.java:220)
> at com.caucho.server.http.FilterChainPage.doFilter
> (FilterChainPage.java:128)
> at com.caucho.server.http.Invocation.service
> (Invocation.java:288)
> at com.caucho.server.http.CacheInvocation.service
> (CacheInvocation.java:132)
> at com.caucho.server.http.QRequestDispatcher.forward
> (QRequestDispatcher.java:214)
> at com.caucho.server.http.QRequestDispatcher.forward
> (QRequestDispatcher.java:99)
> at com.caucho.server.http.QRequestDispatcher.forward
> (QRequestDispatcher.java:76)
> at com.iplanet.jato.view.ViewBeanBase.forward
> (ViewBeanBase.java:346)
> at com.iplanet.jato.view.ViewBeanBase.forwardTo
> (ViewBeanBase.java:267)
> at mosApp.MosSystem.PageHandlerCommon.postHandlerProtocol
> (PageHandlerCommon.java:1617)
> at
> mosApp.MosSystem.pgIWorkQueueViewBean.handleBtProceedRequest
> (pgIWorkQueueViewBean.java:1484)
> at java.lang.reflect.Method.invoke(Native Method)
> at
> com.iplanet.jato.view.command.DefaultRequestHandlingCommand.execute
> (DefaultRequestHandlingCommand.java:183)
> at com.iplanet.jato.view.RequestHandlingViewBase.handleRequest
> (RequestHandlingViewBase.java:335)
> at com.iplanet.jato.view.ViewBeanBase.dispatchInvocation
> (ViewBeanBase.java:806)
> at
> com.iplanet.jato.view.ViewBeanBase.invokeRequestHandlerInternal
> (ViewBeanBase.java:637)
> at com.iplanet.jato.view.ViewBeanBase.invokeRequestHandler
> (ViewBeanBase.java:595)
> at com.iplanet.jato.ApplicationServletBase.dispatchRequest
> (ApplicationServletBase.java:760)
> at com.iplanet.jato.ApplicationServletBase.processRequest
> (ApplicationServletBase.java:434)
> at com.iplanet.jato.ApplicationServletBase.doPost
> (ApplicationServletBase.java:312)
> at javax.servlet.http.HttpServlet.service
> (HttpServlet.java:165)
> at javax.servlet.http.HttpServlet.service
> (HttpServlet.java:103)
> at com.caucho.server.http.FilterChainServlet.doFilter
> (FilterChainServlet.java:82)
> at com.caucho.server.http.Invocation.service
> (Invocation.java:288)
> at com.caucho.server.http.CacheInvocation.service
> (CacheInvocation.java:132)
> at com.caucho.server.http.ServletServer.serviceTop
> (ServletServer.java:937)
> at com.caucho.server.http.HttpRequest.handleRequest
> (HttpRequest.java:213)
> at com.caucho.server.http.HttpRequest.handleConnection
> (HttpRequest.java:158)
> at com.caucho.server.TcpConnection.run(TcpConnection.java:140)
> at java.lang.Thread.run(Thread.java:479)
>
>
>
> To download the latest version of JATO, please visit:
> <a href="http://www.sun.com/software/download/developer/5102.html">http://www.s un.com/software/download/developer/5102.html</a>
<<a href="http://www.sun.com/software/download/developer/5102.html">http://www.s un.com/software/download/developer/5102.html</a>>
>
> For more information about JATO, please visit:
> <a href="http://developer.iplanet.com/tech/appserver/framework/index.jsp">http: //developer.iplanet.com/tech/appserver/framework/index.jsp</a>
<<a href="http://developer.iplanet.com/tech/appserver/framework/index.jsp">http: //developer.iplanet.com/tech/appserver/framework/index.jsp</a>>
>
>
>
>
>
To download the latest version of JATO, please visit:
<a href="http://www.sun.com/software/download/developer/5102.html">http://www.s un.com/software/download/developer/5102.html</a>
<<a href="http://www.sun.com/software/download/developer/5102.html">http://www.s un.com/software/download/developer/5102.html</a>>
For more information about JATO, please visit:
<a href="http://developer.iplanet.com/tech/appserver/framework/index.jsp">http: //developer.iplanet.com/tech/appserver/framework/index.jsp</a>
<<a href="http://developer.iplanet.com/tech/appserver/framework/index.jsp">http: //developer.iplanet.com/tech/appserver/framework/index.jsp</a>>
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[Non-text portions of this message have been removed]
To download the latest version of JATO, please visit:
<a href="http://www.sun.com/software/download/developer/5102.html">http://www.s un.com/software/download/developer/5102.html</a>
For more information about JATO, please visit:
<a href="http://developer.iplanet.com/tech/appserver/framework/index.jsp">http: //developer.iplanet.com/tech/appserver/framework/index.jsp</a>
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