[Beginners Corner] - Re: problem with jboss-3.2.5/tomcat and java 1.5
by matpil
I have noticed that all tomcat-deployed applications doesn't work! Also the JMX-CONSOLE gives me the same error...
>From my browser:
| type Exception report
|
| message
|
| description The server encountered an internal error () that prevented it from fulfilling this request.
|
| exception
|
| org.apache.jasper.JasperException: Unable to compile class for JSP
| org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
| org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
| org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
| 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:810)
|
|
| root cause
|
| Compile failed; see the compiler error output for details.
| org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:944)
| org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
| org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
| org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
| 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:810)
|
|
| note The full stack trace of the root cause is available in the Apache Tomcat/5.0.26 logs.
|
|
Any suggestion?
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18 years, 9 months
[Installation, Configuration & DEPLOYMENT] - Re: JBoss5 JMXConnectorServer
by PeterJ
A couple of thoughts.
1) Try downloading it again, and verify the download with md5. I have successfully downloaded it to various machines, and run it without encountering this issue. (Thinking about this some more, if the download was bad, Windows would probably complain about a zipfile error, so this has a low probability of success.)
2) Try it on another PC. If it works there, you need to figure out what is the difference between your PC and that PC.
That gives me an idea. Do you have listdlls? If not download it from http://www.microsoft.com/technet/sysinternals/utilities/listdlls.mspx, then run the app server, and then at another command prompt enter:
listdlls java
Post the output, perhaps there is a stray DLL causing the problem.
Oh, by the way, do you have any JAR files in the JVMs endorsed directory? If you are not sure, install another version of the JDK, set JAVA_HOME to it, and try again. If that works, then an endorsed JAR is messing you up.
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18 years, 9 months
[JBoss Seam] - When to use Session scope vs. Conversation
by jfrankman
I have an intranet web application for handling our companies clients. After the user searches for and selects a client, the user to brought to the ?Client Master? page. This page consists of a tree control on the left and an iframe on the right. As the user clicks a node on the tree the proper page corresponding to the node is displayed in the iFrame. Right now I have declared by Client object to have session scope.
@Table(name="FBCLIENT")
| @Name("client")
| @Scope(ScopeType.SESSION)
| public class ClientVO implements Serializable
| {
The actions for the pages are handled by a stateful session bean where I try to load the entire object graph for the client when the Client Master page is loaded
@Stateful
| @Name("clientAction")
| public class ClientActionImpl implements ClientAction
| {
| //(a)PersistenceContext(type=PersistenceContextType.EXTENDED) EntityManager em;
|
| @In(create=true) private ClientService clientService;
| @In(required=false) @Out(required=false) ClientVO client;
| @In @Out(required=false) PolicyVO policy;
|
| @In(required=false) ClientVO subClient;
| @In(required=false) MasterSearchResultVO searchResult;
|
| @In(required=false) @Out(required=false,scope=ScopeType.SESSION) ClientVO parentClient=new ClientVO();;
| @Out(scope=ScopeType.SESSION) Boolean organizationFlag=false;
| @Out(scope=ScopeType.SESSION) Boolean personFlag=true;
| @Logger Log log;
|
| @Begin(join=true)
| public String lookupClientFromSearch() {
| policy=searchResult.getPolicyVO();
| client=clientService.findClientByIdFetchGraph(searchResult.getClientVO().getId());
| parentClient=client.getParentClient();
| if (client instanceof PersonVO)
| {
| organizationFlag=false;
| personFlag=true;
| }
| else if (client instanceof OrganizationVO)
| {
| organizationFlag=true;
| personFlag=false;
| }
| else
| {
| System.out.println("The Client is a only a ClientVO");
| }
|
| log.info("In Client Lookup(log)");
| return "success";
| }
| @End
|
|
I use session scope because while the user is on the Client Master page all pages loaded in the iFrame would need access to the Client object. I have found that by doing this I run into a lot of Lazy init errors. I basically have to get the Client key and fetch the entire Object graph. This works ok for now, but I fear that this could be a problem in the future. Plus from my reading about conversations it looks like I would not have to worry about the Lazy Init errors if the Client object was in conversational scope.
I have a few questions about this:
1. Is there a way to properly end a conversation when there is not really any linear page flow? In other words, I understand how a conversation would work in a shopping cart or wizard where a user is moved sequentially from one page to another. However in my case where there is a tree control and iframe the user could navigate to numerous pages in any particular order. How would I end the conversation when a user chooses to exit the Client Master Screen?
2. In cases where numerous operations can be performed on the client from various unordered screens would it be better that I stick with Session scope? In other words is the conversation scope best suited for wizards and ordered/sequential page navigation, or can I some how use in Client Master page in conversational scope. Or, am I better off sticking with Session scope.
3. When a converstion or session ends in the iframe is there a way to show the error.xhtml page in the parent browser window rather than the iframe?
4. Are 1-4 hour sessions/conversations acceptable for Intranet applications? Assume that this is an intranet application. It could have up to 200-400 concurrent users but never any more that that. They will need long running sessions or conversations. When an employee walks away from the application for one or two hours they don?t want to have to sign back into the application
I am trying to learn as much as possible, so any help would be appreciated.
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18 years, 9 months