Where are classes loaded from ?

How can I find out programmatically the url where a class is loaded from ?
Something like the info given by "java -verbose:class MyApp".
I don't see any method doing this in the class Classloader...
Any idea ?

Haven't tried it, but what about trying URL wheresMyClass = ClassLoader.getSystemResource("myPackage.myClass") ?

Similar Messages

Where are class loaders stored.

Hi Guys,
I want to know in which part of memory are class loader stored and significance of "Class loader statistic at GC Nr".
Also, share some links which gives me some insight for the same.
Regards,
DV

You may find this information helpful from SAP.
Using the Class Statistic - Kernel and Infrastructure Services - SAP Library
Hope it assists you.
More information: Monitoring and Management Tools

Delta records are not loading from DSO to info cube

My query is about delta loading from DSO to info cube. (Filter used in selection)
Delta records are not loading from DSO to Info cube. I have tried all options available in DTP but no luck.
Selected "Change log" and "Get one request only" and run the DTP, but 0 records got updated in info cube
Selected "Change log" and "Get all new data request by request", but again 0 records got updated
Selected "Change log" and "Only get the delta once", in that case all delta records loaded to info cube as it was in DSO and gave error message "Lock Table Overflow" .
When I run full load using same filter, data is loading from DSO to info cube.
Can anyone please help me on this to get delta records from DSO to info cube?
Thanks,
Shamma

Data is loading in case of full load with the same filter, so I don't think filter is an issue.
When I follow below sequence, I get lock table overflow error;
1. Full load with active table with or without archive
2. Then with the same setting if I run init, the final status remains yellow and when I change the status to green manually, it gives lock table overflow error.
When I chnage the settings of DTP to init run;
1. Select change log and get only one request, and run the init, It is successfully completed with green status
2. But when I run the same DTP for delta records, it does not load any data.
Please help me to resolve this issue.

HT201269 Where are the notes from my iphone backup and how can I sync them with my new macbook and ipad. And my galaxy 3g if someone is feeling especially generous with their time and attention. Many thanks.

Where are the notes from my iphone backup and how can I sync them with my new macbook and ipad. And my galaxy 3g if someone is feeling especially generous with their time and attention. Many thanks.

- The iTunes backup that iTunes makes included photos in the camera roll. If yo go to iTunes>Preferences>Devices what is the date of the backup? Is it when the photos were on the iPod? You have to restore from that backup.
- What may have happened is that you backup the iPod after you restored the iPod but before restoring from backup. iTunes only keeps one backup and overwrites the previous backup with the changes.

HT1391 Where are film downloaded from iTunes stored on an iPad?

Where are film downloaded from iTunes stored on an iPad?

They should be in the Videos app :
If they don't show in there then are they hidden by a film age rating in Settings > General > Restrictions ?

Classes are not loading from WEB-INF/classes directory

Hi All,
I am in a deep troble because the class files in the WEB-INF/classes directory are not loading.
I have deployed the application in Tomcat 6 server. And stored all class files under WEB-INF/classes dirctory. But when I execute a JSP page, I am getting following error:
HTTP Status 500 -
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:
JSP FileName:/hello.jsp
An error occurred at line: 1 in the jsp file: /hello.jsp
com.flt.Test cannot be resolved to a type
1: <%=new com.flt.Test().hello()%>
Stacktrace:
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:98)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)The classes are available in the WEB-INF/classes directory and the folder name and package name of the classes are correct. I have also tried to execute the application by creating a jar file and put it in the WEB-INF/lib directory. But I am getting same result.
Is it the problem with Tomcat configuration? When I gone through Tomcat documentation, I get to know that the WebAppX class loader in Tomcat, loads application specific classes for a web application. Is it possible to start/stop WebAppx classloader manually?
Please help me to solve this issue.
Many Thanks,
Francis Lukose
Edited by: francis_ on May 13, 2008 10:03 AM

Thanks for your reply, Soultech2012.
<%=new com.flt.Test().hello()%>is the only code in the JSP page. Just a single line. Nothing more than that.
The code in Test.java is as follows:
* To change this template, choose Tools | Templates
* and open the template in the editor.
package com.flt;
* @author Francis Lukose
public class Test {
    public static String hello()    {
        return "hello";
}Many Thanks,
Francis
Edited by: francis_ on May 13, 2008 6:45 PM

Dynamic class loading from directory on server

Hello,
I am not sure if this is right forum, but I think it is more weblogic then ADF issue...
I am trying to create and load dynamically classes in weblogic (10.3.2.0). It is ADF application which I deploy to the weblogic server.
When I print ((GenericClassLoader)this.getClass().getClassLoader()).getFinderClassPath()I see the path to my directory (of course not just this path) C:\...\system11.1.1.2.36.55.36\DefaultDomain\servers\DefaultServer\tmp\_WL_user\test\753the\dynamicClasses(I have added directory dynamicClasses to manifest for deployment WAR profile).
In this directory I create class files. I have checked it, files are really created there.
When I try to load created class with the same classloader, for which I have printed classpath, ClassNotFoundException is thrown.
Please where could be the problem? Isn't it possible to load classes from directory instead of jar, do I need some special server configuration,...?
Thank you in advance
Qjeta

Hi Qjeta,
I am not sure but you can give it a try using URLClassLoader...Which we generally use for DynamicClassLoading:
import java.net.URLClassLoader;
<font color=maroon>
String path="C:/.../system11.1.1.2.36.55.36/DefaultDomain/servers/DefaultServer/tmp/_WL_user/test/753the/dynamicClasses";
*URLClassLoader loader = new URLClassLoader(new URL[] { new URL(path) });*
Class c = loader.loadClass ("your.class.NameHere");
</font>
// Load class from class loader. filly qualified class name (means classname with package name) is the name of the class to be loaded
in the above code the "C:/.../system11.1.1.2.36.55.36/DefaultDomain/servers/DefaultServer/tmp/_WL_user/test/753the/dynamicClasses" should be the location of the directory where your classes are placed....If you want to load a perticular Jar then you need to write the jarfile name as well like following:
C:/.../system11.1.1.2.36.55.36/DefaultDomain/servers/DefaultServer/tmp/_WL_user/test/753the/dynamicClasses/Myapplication.jar
.================================
If the above code works for you then later you can even try to enhance your code by doing the following:
Thread.currentThread().setContextClassLoader(urlClassLoaderRef);
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)

Images are not loading from initial domain when using a cdn

Hello, i have a wordpress website on which i set the w3 total cache plugin with a cdn, the cdn is MaxCDN and is configured to not serve images but only css & js & font files. Because i configured the cdn not to serve images, the images in css files have the src as absolute path, path which point to original website domain, something like this: background-image: url("http://www.originaldomain.com/images/back.jpg");, the css file is served from the cdn like this: http://cdn.originaldomain.com/css/style.css . So the problem is that firefox refuse to load the images referred in style.css file, images which probably appear to be in another domain. If i try to load the images directly in browser, using address bar, they are loading ok, but on loading from css file i got a http error 500 (acording to firebug). The same website is loading ok in other browsers: ie7/ie8/ie9, opera, safari and chrome. Can anyone help me to solve the issue?

'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* You can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''
Thank you.

Dynamic class loading from JARs in web application

Hello,
I'm working on a web project in which we would like to dynamically load plugins without server restart.
We have developed our own ClassLoader in order to load the plugins from a path or with a user interface upload function.
The class loader hierarchy should be something like this:
      Bootstrap
          |
       System
          |
       Common
Catalina   Shared
        Webapp1 OurSystem
                   PluginClassLoaderThe all works fine within the classes loaded in the PluginClassLoader, but classes loaded in OurSystems class loader cannot access classes loaded in PluginClassLoader. For example when Hibernate tries to load classes definied in mapping files we got a java.lang.ClassNotFoundException.
Is there a way to load classes dynamically to OurSystems class loader or notify it about PluginClassLoaders classes?
Or is this a bad way to do it?
Best regards,
Kristoffer Renholm

Hi,
Sounds like a classpath problem that the folks in the workshop newsgroup
could help with. Try asking your question in:
http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=xover&group=weblogic.developer.interest.workshop&utag=
Bruce
Graeme Dougal wrote:
>
Hi, I am developing a web service with weblogic workshop. The JWS file references
other classes one of which is a factory for distributing various implementations
of an interface. I am trying to dynamically load the relevant class to be distributed
from the factory via its name, e.g. Class c = Class.forName(className)
However I keep getting a classNotFoundException.
Any ideas ??

Dynamic class loading from String name

Hello all,
I have a question for dynamic class loading:
If I have a String variable that represents a class name, how can i use it to make dynamically an object of the class tha the string variable represents?
For example i have a string like this
String classname="String";
Using this i want to make a new String object .
Can anyone tell me how can i do this(example plz)?

I have worked out the code and this works fine:
import java.lang.*;
class dynamictestname{
     public dynamictestname() {
    public static Class test(String objname){
         try{
         Class theClass = Class.forName(objname);
             return theClass;
        } catch (ClassNotFoundException e)
            throw new NoClassDefFoundError (e.getMessage());
     public static void main (String [] args){
          String classname="java.lang.String";
          Class thisClass=dynamictestname.test(classname);
          try{
          Object instance = thisClass.newInstance();
          }catch(InstantiationException e){
          }catch(IllegalAccessException ie){
}The new problem i 've faced is that i can't instatiate a new object by the class i have created.I saw some examples with use of the java.lang.reflect but this class i used with user created classes which have methods that the user wants to run dynamically.
I just want to make an object from the class and give it a value.
For example if the object i have created with the
Object instance = thisClass.newInstance();is an object of java.lang.String class
how can i do something like this below dynamically from instance object :
String x="TEST ";
Thanks for the help..

Where are my pictures from my photo stream?

Recently I have noticed that my pictures from my camera roll and photo stream are disappearing. Where are they and why can't I find them?

Beware you dont let your iphone drain out.. Den u wont have any way to switch it ON..
Connect your iphone via itunes.. In My Computer your iphone will show up.. open it n see if all ur fotos are der or nt..

Where are my favorites from IE

When installing Firefox, it said I was importing my Favorites from IE. I had a list of about 100 favorites in various folders. But it did not show up in the Firefox bookmarks toolbar tab. Where are they?
Thanks

Firefox automatically creates backups of your bookmarks, which can be helpful if your bookmarks are lost or missing. To recover them, follow the instructions below.
#Use <u>one</u> of these methods to open the Bookmarks Library window:
#*Click the ''[[Display the Firefox button menu instead of the menu toolbar|Firefox button]]'' to open the menu and click on ''Bookmarks''.
#*Click the ''Bookmarks'' menu and click on ''Show All Bookmarks''.
# At the top of the Library window, click the "Import and Backup" menu and select Restore.
# Click the date of the bookmark backup you want to recover.
# In the new window that appears, click OK.
# Your bookmarks from the selected date should now be restored.
For more information, see the [[Restore bookmarks from backup or move them to another computer]] article. For other solutions, see the [[Recover lost or missing Bookmarks]] article.
Did this fix your problems? Please report back soon.

XML publisher - the output have few vertical lines.where are they come from

I need some suggestion on how to debug.
just take over a project. The invoice is present using XML publisher. the template also called sub template for header and footer information. But there are vertical line between each column almost all the way from the header to the footer. I original though that must be the boarder from each column. but not really. I even delete all the column, or even the for-each@section... Still see the vertical liine. I won't see them at all in the template.
Where are these vertical line comes from

ATI Radeon HD 2600 XT:
Chipset Model: ATI Radeon HD 2600
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: ATI (0x1002)
Device ID: 0x9588
Revision ID: 0x0000
ROM Revision: 113-B1480A-252
EFI Driver Version: 01.00.252
Message was edited by: Mac Pro Man
I have looked the mac inside an everything seems fine.
Message was edited by: Mac Pro Man

I bought a new device where are my pics from old device

I have an Icloud acct and I was told that my pics would transfer to my new Iphone, where are they and what do I need to do to find them.

iCloud would back up photos and videos in your Camera Roll, so if your old pics are in the camara roll, you can transfer them to your new device.
Read this note of information from Apple support, you will find the way to do it.
Transfer content from an iPhone, iPad, or iPod touch to a new device

Problem lies some where JVM Class Loader

I suspect that the jar files are in the JPI cache. During applet initialization, the various classes start loading. Then, because of the page trasition,
the applet gets shutdown by the Java Plug In. Because it doesn't terminate quickly enough, the JPI starts killing threads (java.lang.ThreadDeath).
The classloader seems to be ungraceful in handling that situation. This seems to leave the classloader's internal state in an inconsitent state.
Therefore, until the JVM is restarted, the class loading fails.
Thanks and Regards
Manoja

I suspect that the jar files are in the JPI cache. During applet initialization, the various classes start loading. Then, because of the page trasition,
the applet gets shutdown by the Java Plug In. Because it doesn't terminate quickly enough, the JPI starts killing threads (java.lang.ThreadDeath).
The classloader seems to be ungraceful in handling that situation. This seems to leave the classloader's internal state in an inconsitent state.
Therefore, until the JVM is restarted, the class loading fails.
Thanks and Regards
Manoja

Where are classes loaded from ?

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