Class file viewer

is there any simple method to view the class file created after compilation?? is there any source code available in java to view the class file if so plz send me..
thanks in adavance
anu

is there any simple method to view the class file
created after compilation??
is there any source code
available in java to view the class file if so plz
send me..I think the BCEL API allows you to analyze a class file...

Similar Messages

Using Internet Explorer to view .class files

How can I refresh the class file itself? I've hit Refresh in IE, but it doesn't update the class file.

Hold down the Shift-key when you press reload.
How can I refresh the class file itself? I've hit
Refresh in IE, but it doesn't update the class file.

Loading class file stored in BLOB field

- I am able to store and retrieve Java files and XML files in and from a BLOB field, but when I store a class file and try and load it using Class Loader, it us unable to load the class. The size of the class file increases by 1 byte when I retrieve it from the database. Is this some security feature by the JVM? Is it not possible to store, retrieve and load a class file from a database table?
Thanks
Harini

Hi,
First, I would suggest you use fiddler (http://www.telerik.com/fiddler) to compare these two different client requests, second, please try to use Azure Storage Explorer (http://azurestorageexplorer.codeplex.com/) to do
this instead of the Azure Web Storage Explorer.
Best Regards,
Jambor
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RAISEERROR not shown in Agent Job Log File Viewer

I use a RAISEERROR for a critical error in a CATCH. When the Job is run, it does fail but it gives the following message. How do i get my @Note to show in the Log File Viewer? Also, where is the log referenced 'WITH LOG'. I looked at the SQL Server Agent
Log and did not see anything.
Message
Executed as user: NT AUTHORITY\SYSTEM. TCP Provider: The specified network name is no longer available. [SQLSTATE 08S01] (Error 64) Communication link failure [SQLSTATE 08S01] (Error 64). The step failed.
DECLARE @Note VARCHAR(500) = 'RAISEERROR due to Critical error'
RAISERROR (@Note, 20, 127) WITH LOG

It says Target Local Server. I scripted out the job and proc and ran them on another SQL Server 2008 R2 and I got the expected results. Maybe the test SQL Server 2008 R2 environment I am using has some quirks (for lack of a more technical term)
@VERSION on SQL Server where I get the [SQLSTATE 08S01] (Error 64)
Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (Intel X86) Apr 2 2010 15:53:02 Copyright (c) Microsoft Corporation Standard Edition on Windows NT 5.2 <X86> (Build 3790: Service Pack 2) (Hypervisor)
@VERSION on SQL Server where I get expected results
Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (Intel X86) Apr 2 2010 15:53:02 Copyright (c) Microsoft Corporation Developer Edition on Windows NT 6.0 <X86> (Build 6002: Service Pack 2) (Hypervisor)
BELOW are the scripted out job and proc that I have been using to test the RAISERROR
-- scripted out job
USE [msdb]
GO
/****** Object: Job [AATEST] Script Date: 12/15/2013 16:15:09 ******/
IF EXISTS (SELECT job_id FROM msdb.dbo.sysjobs_view WHERE name = N'AATEST')
EXEC msdb.dbo.sp_delete_job @job_id=N'2dd36995-fde6-491c-b4e2-85e8bdea6411', @delete_unused_schedule=1
GO
USE [msdb]
GO
/****** Object: Job [AATEST] Script Date: 12/15/2013 16:15:09 ******/
BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
/****** Object: JobCategory [[Uncategorized (Local)]]] Script Date: 12/15/2013 16:15:09 ******/
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE name=N'[Uncategorized (Local)]' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', @name=N'[Uncategorized (Local)]'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
END
DECLARE @jobId BINARY(16)
EXEC @ReturnCode = msdb.dbo.sp_add_job @job_name=N'AATEST',
@enabled=1,
@notify_level_eventlog=0,
@notify_level_email=0,
@notify_level_netsend=0,
@notify_level_page=0,
@delete_level=0,
@description=N'No description available.',
@category_name=N'[Uncategorized (Local)]',
@owner_login_name=N'FNXXX\eME', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
/****** Object: Step [STEP1] Script Date: 12/15/2013 16:15:09 ******/
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, @step_name=N'STEP1',
@step_id=1,
@cmdexec_success_code=0,
@on_success_action=1,
@on_success_step_id=0,
@on_fail_action=2,
@on_fail_step_id=0,
@retry_attempts=0,
@retry_interval=0,
@os_run_priority=0, @subsystem=N'TSQL',
@command=N'EXEC aap1test',
@database_name=N'Store01',
@flags=0
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, @start_step_id = 1
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, @server_name = N'(local)'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave:
GO
-- scripted out proc
USE [Store01]
GO
/****** Object: StoredProcedure [dbo].[aap1test] Script Date: 12/15/2013 16:17:19 ******/
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[aap1test]') AND type in (N'P', N'PC'))
DROP PROCEDURE [dbo].[aap1test]
GO
USE [Store01]
GO
/****** Object: StoredProcedure [dbo].[aap1test] Script Date: 12/15/2013 16:17:19 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[aap1test]
AS
BEGIN
RAISERROR ('************ i am here', 20, 127) WITH LOG -- bxg
END
GO

.class files in eclipse

Hello,
I am developing a web application in eclipse.After development i need to deploy the changed .class files to the server..
but i am not getting the .class files in my eclipse are are only .java file present in my application.
Can any tell me how to get the .class file for the modified .java file.
Thanks in Advance

Maybe this is just an issue with the view? The build folder in "Project Explorer" does not display the class files by default. However, it can be customized to display the .class files. Follow these steps...
http://stackoverflow.com/questions/4163923/what-can-i-do-to-make-display-the-bin-folder-on-eclipse
The "Navigator" view (open it using "Window" -> "Show View" menu option) also displays the .class files in your project.
If you're using OEPE and deploying to a WebLogic Server, this tutorial will offer additional information about deployment and the FastSwap configuration "to reload altered classes without disturbing running applications."
http://www.oracle.com/webfolder/technetwork/tutorials/obe/jdev/obe11jdev/11/eclipse_intro/eclipse_intro.html

My JSP can't find a class file

Hi
I am trying to view a JSP but I get ClassNotFoundException. I know that it means that it can't find the class but I can't understand why.
my directory structure:
Intranet->source
->jsp
->WEB-INF->classes->source-><class file here>
first line of .java file:
package source;
JSP code:
<%@page import="java.sql.*, source.*, java.util.*;" %>
<jsp:useBean id="dbConnect" scope="session" class="source.DBConnect">
<jsp:getProperty name="dbConnect" property="jdbc:odbc:Auto_Intranet" />
</jsp:useBean>
Must I create an environment variable for 'Windows': with classpath " .....\WEB-INF\classes"
The Windows environment variable doesn't exist----using XP Pro

Looks right to me.
You don't need a classpath variable. Web containers ignore it anyway.
Which class is not found? source.DBConnect?
Is DBConnect in a package called source?
Is your database driver in the web-inf/lib directory?
Please post the full error message with stack trace - it will be easier to sort out.
Good luck,
evnafets

Java error message - Bad version number in .class file

I get the error noted below in Safari, Firefox, and Chrome when I try to view java containing web pages.
Specifically this page: http://aviationweather.gov/adds/tafs/java/
My Java Preferences are as follows
My OS is 10.5.8
Thanks!
Java Plug-in 1.6.0_26
Using JRE version 1.5.0_30-b03-389-9M3425 Java HotSpot(TM) Client VM
User home directory = /Users/ernest
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
java.lang.UnsupportedClassVersionError: Bad version number in .class file
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:676)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)
    at java.lang.reflect.Method.invoke(Method.java:592)
    at sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Plugin2ClassLoader.java :1014)
    at sun.plugin2.applet.Plugin2ClassLoader.access$100(Plugin2ClassLoader.java:69)
    at sun.plugin2.applet.Plugin2ClassLoader$2.run(Plugin2ClassLoader.java:991)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Plugin2ClassLoader.java:9 55)
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:134)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:250)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:180)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:161)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:675)
    at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3046)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.ja va:1498)
    at java.lang.Thread.run(Thread.java:655)
Exception: java.lang.UnsupportedClassVersionError: Bad version number in .class file

Hi, thank you for the reply. However, java is definitely enabled on my computer, on all my browsers. In fact, if I go to the SUN website and run the java test, I get that all is OK.
I think it may have something to do with the .class (maybe in .jar-file) compiled with a higher version of java than the virtual machine trying to run it.
The example I found (google search) is .class-file that is compiled with JDK 6 and I am trying to run it with 1.4 JVM.
There is some software error going on somewhere... but I do not know enough to fix it.
Many thanks for all your help

How to Refer a class of Model Layer From a Class of View Layer IN Struts?

HI There !
I am building an application on struts using JDeveloper 10.1.3.1. On Selecting New application and writing few classes this is my Application Hierarchy is like folowing:
Application Name
|___ Model (Project given by Jdeveloper)
| |_____ Application Resources
| |________ model (Package)
| |__________ CheckUser.java
| |__________ DataAccess.java
|
|___ ViewController(Project given by Jdeveloper)
|________ Application Resources
|__________ View (Package)
|__________ logon.java
I tried to use CkeckUser.java in logon.java by importing the package model.
But Jdeveloper is showing an error which means that this Package is not available here.
So then how I can refer this class at View layer classes.

Hi Ankur,
I'm facing the same problem, i need to access a method in the AppModuleImpl but when i try to call it from an action in my viewController this error pops out:
Error: cannot access class oracle.jbo.server.ApplicationModuleImpl; file oracle\jbo\server\ApplicationModuleImpl.class not found
Did you have some advances with this?
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Converting class files into java source codes

Dear Friends,
It is true that conversion of class files to its java source codes is possible through some software. I want to know, is there any way to protect my java source codes from viewing or copying illegally by other persons ?
If I create JAR file from java files, can it be also convertible back to source codes ?
Avi

You can use code obfuscators in order to protect your code. And yes a jar file can also be decompiled.
http://www.retrologic.com/
http://www.2lkit.com/products/2LKitObf/
http://www.codingart.com/codeshield.html
http://www.drjava.de/obfuscator/

Issue in .class file in imported archive ESR - after upload using eclipse

Dear Friends,
My requirement here is too change existing java mapping. Here I am exporting zip file from imported archive and after making changes in eclipse upload the .JAR file again. Here .class file is not opening after upload in Imported Archive.
Error is
Setup I am having on my system.
-> JDK version on my system JDK 1.6_34
-> JRE on my system – JRE 6
-> Using eclipse SDK 4.2.2
SAP PI servers settings.
I searched online blogs but no help. Can anybody guide me what wrong am I doing here?
Thanks.
Sumeet.

Thanks for reply..Hareesh.
-> In Eclipse only 1 warning is coming and no error. I guess Eclipse automatically compile .class file. Is there any way in eclipse to see if compilation is done properly?
-> I imported few external JAR files and already few JAR files are there in Eclipse(JRE1.6), as shown in fig below. Which JAR file is being user? How can I make sure?
-> When using Run as option I am not getting any option. Is it normal or did I have to activate some option?
Please give your views on this.
Thanks.
Sumeet.

Windows File viewer in JavaFX?

Is there any built in JAVAFX which is similar to the file viewer in windows?
Edited by: 901246 on Dec 8, 2011 2:14 AM
Edited by: 901246 on Dec 8, 2011 2:15 AM

The Swing FileChooser is rendered by Swing, so for a given app it will be look the same no matter the platform.
The JavaFX FileChooser is rendered by the native platform, so every app on a given platform will have the same looking filechooser, but for a given app the look of the file chooser will differ from platform to platform.
As a user, I much prefer applications to use the native platform file chooser rather than creating their own.
is there something similar to this in javafxIt's possible to create a FileChooser control in JavaFX which is implemented as a JavaFX Stage with nodes, but I am not aware of the existence of one at the moment - it's not part of the base platform yet => feature requests may be created at http://javafx-jira.kenai.com.
Swings has a FilePreviewer which can be used to display the preview of the files selected.. can i integrate this in a JAVAFX applicationYou can launch a Swing FileChooser from a JavaFX application.
I copied the code from a Swing demo (http://docs.oracle.com/javase/tutorial/uiswing/examples/components/index.html#FileChooserDemo) into a parallel directory to the following JavaFX application and ran the application and it launched the JavaFX UI with a Swing FileChooser fine.
import javafx.application.Application;
import javafx.scene.*;
import javafx.stage.Stage;
public class FilePreview extends Application {
public static void main(String[] args) throws Exception { launch(args); }
public void start(final Stage stage) throws Exception {
    stage.setScene(new Scene(new Group(), 300, 200));
    stage.show();
    FileChooserDemo.main(new String[] {});
}If you go this route just watch out for threading issues and make use of JavaFX's Task or Platform.runLater interfaces and SwingUtilities invokeLater routines to make sure the Swing thread isn't touching JavaFX components and vice-versa.

How to convert class files into java files??

Hey Guys,
I need a little help.
I want to know wheather we can view .class files as .java files or convert the .class to .java files.Is ther any tool or software for doing that.
Or in other words can i see the source code of any .class file..??
Plz do tell me if we can do that or any other way we can do that.
Regds,
Gokul

Sort of. A "decompiler" will take a class file and generate a source code file of source code that could be compiled to get the class file you started out with. However, it won't be the same source code that was originally used to create the class. Most notably, comments will be missing, and variable names will probably be meaningless.
And before you say "java is bad because you can decompile it", note that any language that you can execute you can theoretically decompile.
Also, you can view the raw byte codes. If you're familiar with assembly language, or better yet familar with java bytecodes and the JVM in particular, you can often find out what a particular method does just by viewing the byte codes.

Organising CLass Files

Hi guys and girls,
Up until now I have just need to import standard flash
classes into my projects, but now I am at the stage where I am
needing to create my own classes......just wondering if someone has
a view on the best way to store the external .as files? I had a
friend ages back who was showing me his setup and it looked like he
had a library that he was viewing inside of flash that contained
all his classes...he was running a webserver on his laptop so maybe
they were on his server, but I distinctly remmber him browsing his
class files in flash.....not really sure and I don't keep in
contact anymore so it would be good to get your guys opinion on the
different approaches.
Thanks and all the best,
Nathan..

Nathan,
> I am at the stage where I am needing to create my own
> classes......just wondering if someone has a view on the
> best way to store the external .as files?
I recommend a package based on your domain name, including
folders for
categories if it makes sense (e.g. my own classes are in the
net.quip
package -- and if I feel the need for additional
categorization, I use
net.quip.utils [etc.]). Make sense? Domain names are unique,
so this
avoids possible object collisions.
> I had a friend ages back who was showing me his setup
> and it looked like he had a library that he was viewing
inside
> of flash that contained all his classes...
Possibly the Project panel?
Here's an article I wrote not too long ago on classpaths for
AS2.
http://www.communitymx.com/abstract.cfm?cid=197DE
David Stiller
Adobe Community Expert
Dev blog,
http://www.quip.net/blog/
"Luck is the residue of good design."

How to import class files in Rhino shell

Hi,
i want to test some methods of ScriptEngineContext class in
Microsoft_Active-Directory-and-Windows_2011.1r3 collector, so i import
some class files in Rhino shell, but some errors apeared, detail steps
are following:
1. steve_zeng@suse01:~/sentinel/doc/Plug-ins/Collectors> cd
Microsoft_Active-Directory-and-Windows_2011.1r3, it will apear some
important jar packages(red fonts)
accountImpl.js commons-codec-1.3.jar dataobject.js
event.js joda-time-2.1.jar protoEvt.map sha1.lic
trust.js
account.js commons-io-2.4.jar date.js
eventsource.js js.jar Rec2Evt.map sqlquery.js
trusttype.js
agent.nfo commons-logging-1.1.jar docs
eventsourceserver.js LegacyEvtNames.map record.js sysEvents.map
utils.js
asset.js commons-logging-adapters-1.1.jar error_codes.map
Evt2EvtData.map logon_types.map release.js
syslog_facility.map vuln.js
bsf-240.jar commons-logging-api-1.1.jar EULAs
file.js main.js session.js taxonomy.map
window-field.map
collector.js connector.js
eventcode_parsing.js identityImpl.js master.jar
severity.map tenant.js xdas_out.map
collectorutil.jar data event_codes.map
identity.js package.xml sha1.js trustImpl.js
xdas_tax.map
2.
steve_zeng@suse01:~/sentinel/doc/Plug-ins/Collectors/Microsoft_Active-Directory-and-Windows_2011.1r3>
java -classpath ./js.jar org.mozilla.javascript.tools.shell.Main
Rhino 1.7 release 3 2011 05 09
js>
3. js> JavaPackage
esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext
js: "<stdin>", line 3: missing ; before statement
js: JavaPackage
esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext
js: .....................^
4. js> loadClass(JavaPackage
esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext);
js: "<stdin>", line 4: missing ) after argument list
js: loadClass(JavaPackage
esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext);
js: ...............................^
js>
when i run JavaPackage or loadClass shell, js: "<stdin>" error apears,
why? does anyone can help me? thanks!
BR
Steve zeng
steve_zeng
steve_zeng's Profile: https://forums.netiq.com/member.php?userid=3875
View this thread: https://forums.netiq.com/showthread.php?t=49805

steve_zeng;239719 Wrote:
> Hi,
> i want to test some methods of ScriptEngineContext class in
> Microsoft_Active-Directory-and-Windows_2011.1r3 collector, so i import
> some class files in Rhino shell, but some errors apeared, detail steps
> are following:
>
> 1. steve_zeng@suse01:~/sentinel/doc/Plug-ins/Collectors> cd
> Microsoft_Active-Directory-and-Windows_2011.1r3, it will apear some
> important jar packages(red fonts)
>
> accountImpl.js commons-codec-1.3.jar dataobject.js
> event.js joda-time-2.1.jar protoEvt.map sha1.lic
> trust.js
> account.js commons-io-2.4.jar date.js
> eventsource.js js.jar Rec2Evt.map sqlquery.js
> trusttype.js
> agent.nfo commons-logging-1.1.jar docs
> eventsourceserver.js LegacyEvtNames.map record.js sysEvents.map
> utils.js
> asset.js commons-logging-adapters-1.1.jar error_codes.map
> Evt2EvtData.map logon_types.map release.js
> syslog_facility.map vuln.js
> bsf-240.jar commons-logging-api-1.1.jar EULAs
> file.js main.js session.js taxonomy.map
> window-field.map
> collector.js connector.js
> eventcode_parsing.js identityImpl.js master.jar
> severity.map tenant.js xdas_out.map
> collectorutil.jar data event_codes.map
> identity.js package.xml sha1.js trustImpl.js
> xdas_tax.map
>
>
> 2.
> steve_zeng@suse01:~/sentinel/doc/Plug-ins/Collectors/Microsoft_Active-Directory-and-Windows_2011.1r3>
> java -classpath ./js.jar org.mozilla.javascript.tools.shell.Main
> Rhino 1.7 release 3 2011 05 09
> js>
>
> 3. js> JavaPackage
> esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext
> js: "<stdin>", line 3: missing ; before statement
> js: JavaPackage
> esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext
> js: .....................^
>
> 4. js> loadClass(JavaPackage
> esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext);
> js: "<stdin>", line 4: missing ) after argument list
> js: loadClass(JavaPackage
> esecurity.ccs.comp.evtsrcmgt.collector.util.Script EngineContext);
> js: ...............................^
> js>
>
>
> when i run JavaPackage or loadClass shell, js: "<stdin>" error apears,
> why? does anyone can help me? thanks!
>
>
> BR
> Steve zeng
Can you explain a little more about what you're trying to accomplish by
this? The script engine is not really designed around facilitating
shell-based access right now,I'd be interested to know what you can't do
in the Debugger that you are trying to accomplish in the shell.
brandon.langley
brandon.langley's Profile: https://forums.netiq.com/member.php?userid=350
View this thread: https://forums.netiq.com/showthread.php?t=49805

Beginner: Can't convert a hello.class file into a jar file: HELP PLEASE!!!

Hi, I created a hello.java file, converted into a hello.class file by using the java 2SDk compiler. The problem is that the hello.class file is in a directory I created: C:\JavaBuilder\hello.class
I have a problem converting the hello class file into a jar file. I don't know which approach to take. I've looked at tutorials...but I keep getting more confused each time I view the tutorials on creating jar files. Please can someone help..by taking me through a step by step process. Please be explicit and do not leave or assume that I know any details because I'm a new born beginner. Thank you very much, I seriously appreciate it.

Hi i did as you suggested, only with these exceptions:
jar -cvf hello.jar C:\JavaBuilder\hello.class
I did this and got the message: "adding : C:\JavaBuilder\hello.class (in=1150) (out=708) (deflated=38%)"
The problem is that when I tried to execute the jar file...by typing: " java -jar hello.jar" I received the error message: "Failed to load Main-Class Manifest attribute from hello.jar" Is there any way to correct this problem? please help, thank you.

Class file viewer

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