Problem in running a jsp page on tomcat 5.0

hi....
i made a java class abc.java and then compiled it to get a java class file named abc.class in a package named pkg.
Then i copied this package in the classes folder of the WEB-INF folder in tomcat 5.0.
After that i created a jsp page in which i imported this class file. Now when i run the jsp page on tomcat 5.0 i get an error saying this:
javax.servlet.ServletException: pkg/abc (Unsupported major.minor version 49.0)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:244)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.UnsupportedClassVersionError: pkg/abc (Unsupported major.minor version 49.0)
     java.lang.ClassLoader.defineClass0(Native Method)
     java.lang.ClassLoader.defineClass(ClassLoader.java:502)
     java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
     org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1634)
     org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:860)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1307)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
     org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1214)
     org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
     org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
     org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
     org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
     org.apache.jasper.compiler.Generator.generate(Generator.java:3272)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:244)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Can anyone please tell me the solution to this problem?
thanks

This post:
http://mail-archives.apache.org/mod_mbox/jakarta-tomcat-user/200408.mbox/%[email protected]ys.com%3E
Leads me to believe that you're compiling and targeting a java version that your tomcat installation doesn't support. What version of the JDK are you using?
Good Luck
Lee

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Error when run a jsp page in tomcat

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type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
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root cause
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If you are sure you've installed the JDK (as opposed to just a JRE, which doesn't come with the compilation tools that are required to compile JSPs), then your JAVA_HOME is probably set incorrectly. Ensure JAVA_HOME is pointing to the JDK directory, and not to the JRE directory.

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That should have been a different error message. You said you got the same, which is impossible. Don't rephrase errors.
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HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
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path: C:\ j2sdk1.4.2_03\bin
<there are other variables available in path, along with that I have added the j2sdk1.4.2_03\bin in path".
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<body onload="setdefaultvalues('<%=name%>');">
I am having the code for the back button in the results page as follows.
<INPUT TYPE="button" VALUE='Back' onClick="javascript:history.go(-1);resetvalue(name);" class="button">
The problem i am facing is whenever i go to the search page by clicking on the back button, the values in the search page are getting empty because of the onload method. There is no way that i can remove this onload method as i require it for setting the values in the search page evrytime i get to that from other modules as it is the main page for my module. So, is there anyway that i can stop this function from executing when i come from the results page or is there any other way that i can store the values in the search page when going from the results page.

i think you really should have the result page include your search page contents rather than having the user need to click back as you'll end up with all sorts of nightmares in caching & session object management to be honest. if the search page is complex use javascript to hide contents and let the users expand them when they want to re-search.
however, if you feel you must i would suggest the following:
in your result page:
session.setAttribute("userQuery","true"); (you probably actually want to put a container object with the query information in here)
in your search page you could have something like:
<body <% session.getAttribute("userQuery")==null { %>onload="setdefaultvalues('<%=name%>');"<% } %>>
-or-
<body onload="setdefaultvalues('<%=name%>',<%=session.getAttribute("userQuery")==null?"true":"false"%>);">
function setdefaultvalues(name,run) { if ( !run ) return;....}
you'll have to decide when to remove the object though cause once its set its there until the session expires or you remove it.
hope that helps, good luck!

Problems while Running a JSP report

Hello
I am Running a JSP report and got NullPointerException at oracle.reports.jsp.ReportTag.doStartTag(..). I even tested the sample report provided in the Application server and even that gave the same exception as follows:
Reports Error Page
Thu Mar 02 13:56:49 IST 2006
javax.servlet.jsp.JspException: REP-52266: The in-process Reports Server rep_ultra1_oracleas6 failed to start.java.lang.InterruptedException
javax.servlet.jsp.JspException: REP-52266: The in-process Reports Server rep_ultra1_oracleas6 failed to start.java.lang.InterruptedException
     at oracle.reports.jsp.ReportTag.doStartTag(ReportTag.java:464)
     at examples.tools._test._jspService(_test.java:52)
     at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
     at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
     at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
     at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)
     at java.lang.Thread.run(Thread.java:534)
Kindly provide a solution for this problem. Its quite urgent to solve this issue.
With regards

Hi,
I posted this message in jdeveloper forum yesterday, but there was no response. So I thought of posting it in this forum to check my luck.
Thanks
Siva...

Taglib repeating in jsp page in TOMCAT. (Can this be Tag pool issue? )

Hi,
We have an application and it is running fine on one servlet container "ServletExec". We are migrating our application to Tomcat and some weird things happenned.
In one of my JSP pages say page " A ", I have included another small JSP say " B "which just created a table with one row and various columns.
Now the columns are created in a taglib. And I am using that taglib inside that page " B".
Now this is working fine in ServletExec.
But in tomcat when I refersh page A or come to this page dfrom some other page, there are multiple instance of tables from page B are rendered.
SO every time I refresh a new entry added to already existing table.
Can any one please help?
I looked in some documents and found that this may be because of some Tag pooling in Tomcat newer versions. Is that right?
If yes how can I remove this tag pooling in my taglib java class?
Any help is highly appreciated.
Thanks

Hi
try disabling the tag pooling and check the page.
To disable the tag pooling in Tomcat
make enablePooling = false for the jsp servlet declaration in
$TOMCAT_HOME/conf/web.xml
Regards

Problem in running a jsp page on tomcat 5.0

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