Bad class file error

Hi
I set my java home to JDK 1.4 and execute my build.It is ok.
Then i try the same by setting JDK 1.5 as java home. build is ok.
But now i need to use only JDK 1.4.So i set my java home as jdk 1.4 and try to execute the build.xml
Now i got the error of class file has wrong version 49.0, should be 48.0
I understand that the class files(49.0) which are created by JDK 1.5 and i try to execute those by JDK 1.4.
But i donot knwo how to solve this.
Will anybody please help me to solve?
Thank you

Hi
I didnot compile java files with JDK 1.4 and 1.5 both.
First time i use JDk 1.4. for all java files
Second time i use JDk 1.5 for all java files.
Finally i should use JDK 1.4. So i come to jdk 1.4 and set java home jdk 1.4 and exucute my build.xml. Then i got the bad class file error.
Can u help me at this point?
Thank you

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Javac probleme: bad class file error

I'm new to java
I have two classes myPoint.jav and TestPoint.java, when I compile them, I error:
in the command line I type:
C:\otman\java>javac -g geometry\src\myPoint.java TestPoint.java
TestPoint.java:8: cannot access myPoint
bad class file: c:\otman\java\geometry\src\myPoint.class
class file contains wrong class: geometry.src.myPoint
Please remove or make sure it appears in the correct subdirectory of the classpa
th.
myPoint p = new myPoint();
^
1 error
Can some one help me Thanks
//Here is the class c:\otman\java\TestPoint.java
import geometry.src.*;
 Testing my class Point
public class TestPoint {
public static void main(String[] args) {
 myPoint p = new myPoint();
 System.out.println("thank you very much");
 System.exit(0);
// And here is the class c:\otman\java\geometry\src\myPoint.java
package geometry.src;
 class myPoint members and methods of a 3D point
public class myPoint {
 private double m_x,m_y,m_z; // the coordinates
 public double getx() {return m_x;}
 public double gety() {return m_y;}
 public double getz() {return m_z;}
 public void setx(double x) {m_x=x;}
 public void sety(double y) {m_y=y;}
 public void setz(double z) {m_z=z;}
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 // Constructor ------------------------------------------------------------
 myPoint(double x,double y,double z) {
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// ---------------------------------------------------------------------------------

Thank you for the reply but still have problem.
I created a directory classes and the directories look like:
C:\otman\java\
TestPoint.java
classes\
geometry\
src\
myPoint.java
When I compile using the line command:
C:\otman\java>javac -g -d classes geometry\src\myPoint.java TestPoint.java
I get the error:
TestPoint.java:8: cannot find symbol
symbol : constructor myPoint()
location: class geometry.src.myPoint
myPoint p = new myPoint();
^
1 error
Now the directories look like:
C:\otman\java\
TestPoint.java
classes\
geometry\
src\
myPoint.class
geometry\
src\
myPoint.java
I think that myPoint was compiled without problem but TestPoint was not compiled and it gives 1 error.
Can you help me? Thanks.

Bad Class File error - Win2k & J2SDK1.4.0_01

Hi,
I am trying to run a 'Hello World' program which came with the FreeTTS package from links from the java.sun.com website, and am not able to compile the program. I get the error:
FreeTTSHelloWorld.java:4: cannot access file
cl.com.sun.speech.freetts.audio.Voice
bad class file: .\cl\com\sun\speech\freetts\audio\Voice.class
class file contains wrong class: com.sun.speech.freetts.Voice
Please remove or make sure it appears in the correct subdirectory of the classpath.
import cl.com.sun.speech.freetts.audio.Voice;
_______________________________________^
The FreeTTSHelloWorld.java File is printed below [its embarassingly simple..]
* Copyright 2001 Sun Microsystems, Inc.
import cl.com.sun.speech.freetts.audio.Voice;
import cl.com.sun.speech.freetts.audio.JavaClipAudioPlayer;
import cl.com.sun.speech.freetts.en.us.CMULexicon;
public class FreeTTSHelloWorld {
public static void main(String[] args) {
     try {
     String voiceClassName = (args.length > 0) ? args[0] :
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     Class voiceClass = Class.forName(voiceClassName);
     Voice helloVoice = (Voice) voiceClass.newInstance();
     helloVoice.setLexicon(new CMULexicon());
     helloVoice.setAudioPlayer(new JavaClipAudioPlayer());
     helloVoice.load();
     helloVoice.speak
          ("Thank you for giving me a voice. I'm so glad to say
hello to this world.");
     System.exit(0);
catch (Exception e) {
     e.printStackTrace();
I've tried a billion things, including moving around the .class files [which, by the way, i extracted myself from the .jar files which came with the FreeTTS package - is that what i'm doing wrong? if so, please tell me - ] and still nothing happens - the same error results.
I've tried reading other cases similar to mine in the forums, but most of the things i read didn't apply to my (quite simple) situation, such as the 'package' line needing to be removed or anything like that..
I run Win2k and have j2sdk1.4.0_01 installed on my machine
I beg for anyone's help. Thanks in advance
-=-Miagi-=-

Aha!
Extracting from the jar file might be ok, as long as the directory it's extracted into reflects the class's package name. Open the jar file using WinZip and you'll see that the files it contains are in directories that exactly mirror (including case) the package names.
The error you're getting tells you that java is looking in .\cl\com\sun\speech\freetts\audio\Voice.class (the '.\' means relative to your current working directory) and my bet would be that the file is not there!
You shouldn't need to extract these files at all, actually: Try deleting the files you extracted from the jar then try running your program again.
I hope this is helpful...
Chris.

BAD CLASS FILE ERROR WHEN TRYING TO CALL JAVA CLASS IN WEB-INF DIRECTORY

I AM NEW TO THIS FORUM. PLEASE HELP ME IDENTIFY/RESOLVE THIS ERROR - bad class file: /java/tomcat/webapps/ChoiceTel/WEB-INF/classes/XYZ/SMUA.class. OTHER JSP SCRIPTS THAT CALL JAVA CLASSES DO WORK WELL.
THE FUNNY THING ABOUT COMPILIING THIS JAVA CLASS WAS - I HAD TO A jar xvf OF activation.jar and mail.jar IN THE XYZ DIRECTORY BEFORE SUCCESSFULLY COMPILING SMUA.
THE CALL BEING MADE FROM THE JSP SCRIPT IS AS FOLLOWS:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<BODY>
<%@ page import="XYZ.*" %>
<%!
%>
<%
SMUA sndmail = new SMUA();
sndmail.postMail ("[email protected]","Test Subject","What Message","[email protected]");
%>
</BODY>
</HTML>

Dude. Please don't shout. If your keyboard is like mine, it can produce both upper and lower case letters. Please use them appropriately.
Do you have the activation.jar/mail.jar available in the WEB-INF/lib directory for this application?

UDF error: bad class file

Hi to all!
i faced with following problem:
i'm trying to use in message mapping exported Java function and get following error:
Source code has syntax error: E:/usr/sap/DXI/DVEBMGS00/j2ee/cluster/server0/./temp/classpath_resolver/Mapb97a3fc699d611dcaf9d001b78d07a70/source/com/sap/xi/tf/_UserToRoleId_.java:3: cannot access kolpix.echo bad class file: E:\usr\sap\DXI\DVEBMGS00\j2ee\cluster\server0\.\temp\classpath_resolver\Mapb97a3fc699d611dcaf9d001b78d07a70\classpath\Echo_1(kolpix/echo.class) class file has wrong version 50.0, should be 48.0 Please remove or make sure it appears in the correct subdirectory of the classpath. import com.sap.aii.mappingtool.tf3.;import com.sap.aii.mappingtool.tf3.rt.;import java.util.;import java.io.; import java.lang.reflect.*;import kolpix.echo; ^ 1 error
There is my Java function:
package kolpix;
public class echo {
 public echo() {
 public static String hello(String str) {
 return "Hello "+str+"!";
in UDF into the Imports textField i just put kolpix.echo;
and in body function i just put return echo.hello("World");
Could any one explain what does it mean and what i must do to solve the problem?
Thx in advance.

<a href="http://j-integra.intrinsyc.com/support/kb/article.aspx?id=183240">That info explain all</a>

Cannot access Graphics - bad class file

Hey.
When I try to compile my source I get an error saying...
.\Man.java:146: cannot access Graphics
bad class file: .\Graphics.java
file does not contain class Graphics
Please remove the files or make sure it appears in the correct subdirectory.
It's on a different computer so that's not exactly it, but it's close enough. Compiler was working fine until the other day when i found out that all the source files were zipped up in src.zip, I had to extract Graphics.java so I could open it in emacs, and after I did that it started giving me that error message. There's nothhing wrong with my source, and I didn't move Graphics, it's still in the correct place exactly as it was, and i looked at it, all the right stuff is still inside. I'm quite confused.
So do I have to reinstall? That would mean a massive download on my 56k and I kinda wanna carry on with my work.

You should not need to unzip src.zip to use the Graphics class or any class that comes with j2sdk. The compiled classes are in jar files that are installed in certain directories when you install the j2sdk.
You should only need to have a line "import java.awt.Graphics;" near the start of your source code.
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Problem in Packages while compailing the code "bad class file"

Hi,
I wrote the code for encrypt the password in .java file and i used package also
i'm importing that package and i'm compiling the .java file it throws the error like this.
regi1.java:23: cannot access EncryptPassword
bad class file: .\EncryptPassword.java
file does not contain class EncryptPassword
Please remove or make sure it appears in the correct subdirectory of the claspath
EncryptPassword enc = new EncryptPassword();
                        ^
1 error
EncryptPassword.java
package encrypt;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import sun.misc.CharacterEncoder;
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     try
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     catch(UnsupportedEncodingException e)
     throw new Exception(e.getMessage());
     byte raw[] = md.digest(); //step 4
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     public EncryptPassword getInstance() //step 1
     if(instance == null)
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}regi1.java
import encrypt.*;
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class regi1 extends HttpServlet
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        java.io.PrintWriter printwriter = httpservletresponse.getWriter();
        HttpSession httpsession = httpservletrequest.getSession(true);
        httpservletresponse.setContentType("text/html");
        try
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*--- some code for database connection---*
String insQry1 = "INSERT INTO register (Email, Pass);
pStmt.setString(1,Email);
pStmt.setString(2,enc.getEncrypt(Password));
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               exception.printStackTrace();
               System.out.println(exception);
          httpservletrequest.getRequestDispatcher("./FileSubmit.jsp").forward(httpservletrequest,httpservletresponse);
{code}

Multipost: http://forum.java.sun.com/thread.jspa?threadID=5225097&tstart=0
Please continue the thread there and don't multipost!
People on the forum help others voluntarily, it's not their job.
Help them help you.
Learn how to ask questions first: http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch
(Yes I know it's on JavaRanch but I think it applies everywhere)
----------------------------------------------------------------

Bad class file: WSRP_v2_Registration_PortType ...

I've been trying to deploy a portlet to a 10.1.3.2 Portlet Container on OAS 10g without much luck. The portlet deploys correctly to the standalone OC4J within JDeveloper. Here is the error:
... \application-deployments\Portlet\Portlet\oasis\names\tc\wsrp\v2\bind\runtime\WSRP_v2_Registration_Binding_SOAP_Tie.java:930: cannot access oracle.portlet.wsrp.v2.soap.runtime.WSRP_v2_Registration_PortType_modifyRegistration_Fault_SOAPSerializer
bad class file: ... \application-deployments\Portlet\Portlet\oracle\portlet\wsrp\v2\soap\runtime\WSRP_v2_Registration_PortType_modifyRegistration_Fault_SOAPSerializer.java
file does not contain class oracle.portlet.wsrp.v2.soap.runtime.WSRP_v2_Registration_PortType_modifyRegistration_Fault_SOAPSerializer
Please remove or make sure it appears in the correct subdirectory of the classpath.
new oracle.portlet.wsrp.v2.soap.runtime.WSRP_v2_Registration_PortType_modifyRegistration_Fault_SOAPSerializer(ENCODE_TYPE, NOT_NULLABLE, SOAPVersion.SOAP_11), SOAPVersion.SOAP_11);
^
1 error
The class it is complaining about is in wsrp-stubs.jar. I've included the jar in my deployment from JDeveloper and placed it in OAS as a shared lib and import it into the classpath at deployment time. The sample portlets distributed with the portlet container deploy without issue. I'm out of ideas. Any thoughts you have would be appreciated. Thanks!
-Jason

Boing.

Cannot access JScrollPane, bad class file !!!!

Hi everybody. I have got a big big problem. I can not compile my code because this message alwayes is displayed:
C:\Java\hosseindab\Dabb.java:8: cannot access JScrollPane
bad class file: .\JScrollPane.class
class file contains wrong class: javax.swing.JScrollPane
Please remove or make sure it appears in the correct subdirectory of the classpath.
private JScrollPane skrollytan;
I tried to uninstall and reinstall SDK och Textpad, but it didn't work. I even installed them on another computer, but it was the same problem. I do not know what has happened. I have tried j2SDK 1_3_1_15 and j2sdk 1_4_0_01. No use. I could compile the same files some hours ago, but now the Textpad says NO, NO, NO!!! and generates the above error. Just please help me, I don't have much time to deliver my java program.
The code is:
import java.awt.*;
   import java.awt.event.*;
   import javax.swing.*;
   public class Dabb extends JFrame implements ActionListener
       private JLabel lBild1,lBild2,lBild3;
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       private JPanel panelen;
       private JRadioButton knapp1, knapp2, knapp3;
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   private ButtonGroup gruppen;
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        lBild1 = new JLabel(new ImageIcon("Solnedg�ng.jpg"));
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        lBild3 = new JLabel(new ImageIcon("Bl�a kullar.jpg"));
        skrollytan = new JScrollPane();
        panelen = new JPanel();
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        knapp1 = new JRadioButton("Solnedg�ng",true);
        knapp2 = new JRadioButton("Vinter",false);
        knapp3 = new JRadioButton("Bl�a kullar",false);
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        delning.setRightComponent(skrollytan);
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        delning.setMinimumSize(new Dimension(300,300));
        panelen.setLayout(new BoxLayout(panelen,
                               BoxLayout.Y_AXIS));
        gruppen.add(knapp1);
        gruppen.add(knapp2);
        gruppen.add(knapp3);
        panelen.add(knapp1);
        panelen.add(knapp2);
        panelen.add(knapp3);
        knapp1.addActionListener(this);
        knapp2.addActionListener(this);
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        setSize(600, 400);
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        setDefaultCloseOperation(EXIT_ON_CLOSE);
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        Object o = e.getSource();
        if(o == knapp1)
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Your post compiles for me, no errors.
As a guess. you have a problem classpath or mislocated or duplicate files.
This line is especially suspect: bad class file: .\JScrollPane.class
What is that leading period? Do you have a file named ScrollPane?
Something else in the computer is bad, not the program.
Try compiling from the commandline.

Bad class file

This is probably a very basic issue but here it goes: I've been developing a web application in tomcat. Originally we were using the JWSDP 1.3 bundle. I decided to download tomcat 4.1.3 and tried to run the application. I keep getting "bad class errors" and something about tag pool 13 of 10. Any clue as to what is causing the problem? I think it has something to do with the classpath environment variable in windows XP, unfortunately the IT people must have changed my user rights b/c I can no longer edit/change the System variables., I've tried adding a user variable CLASSPATH with the new path to the application, but it still doesnt seem to work.
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Because this is the only post Google returns for "netbeans bad constant pool tag", I'd like to add this (even though the post is many years old):
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I moved a bunch of Netbeans projects via Windows onto a Linux server to add them to a CVS repository.
When I reentered the Projects into Netbeans all hell broke loose : for example: projects compiled clean but the IDE red-flagged them; libraries showed up on the Project Property sheets but were absent in the Libraries tab under the Project in the Projects tree. Netbeans itself appeared to be "in distress".
I had noticed that many java sources were now double-spaced (a blank line inserted after each original line). I suspected somewhere during the journey from Windows to Linux the old carriage-return + line-feed glitch had happened. But, hey-ho, this doesn't effect the java and could be filtered out later.
Then the moment of revelation: most of the XML and .properties files had also been double-spaced.
So code that originally read (for example):
javac.classpath=\
foo:\
bar
now read:
javac.classpath=\
foo:\
bar
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Custom Class file errors out on import javax.servlet.http.HttpSession

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package mypackage1;
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import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.event.PageEvent;
import oracle.cabo.servlet.event.EventResult;
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PageEvent event)
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HttpSession session = context.getServletRequest().getSession(true);
session.putValue("User Name", userName);
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Hi, you are missing the servlet.jar file from your classpath.
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Class File Error 1046

Hi all, I am trying to write my first class file, been away
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Hi ActionScripter1,
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it ran fine when i opened it with a browser (when it still was on my computer and not on the net).
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java.lang.ClassFormatError: Extra bytes at the end of class file ImageHolderNotifier
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     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
i tried rebuilding the project and uploading all the .class files from scratch... still, no change :-/
i have compiled it using eclipse 3.1.0, JDK1.5.0_02.
my JRE is 1.5.0_02
i've tried running it both with Internet Explorer and FireFox...

Works locally but not after uploading.
Must be uploaded wrong then (ftp ascii??) or it's the web server.

Problem for retriveing servlet class file (error in DD) I think so

hi to all ,
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The requested Resource is not available
why its happening ?
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
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<welcome-file-list>
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</welcome-file-list>
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<servlet>
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 <servlet-class>LoginAction</servlet-class>
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<servlet>
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 <servlet-class>InsertData</servelt-class>
</servlet>
<servlet-mapping>
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<servlet-mapping>
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<context-param>
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 <url-pattern>/InsertData</url-pattern>
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i started the application using start command...
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FAIL - Application at context path /25.7 could not be started
Message was edited by:
kannankalli

<servlet-class>InsertData</servelt-class>Closing element for <servlet-class> is wrong.
Before posting for any help check following stuff
- Whether deployment descriptor is well-formed
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AS class file - error defining dynamic component method

In the constructor of my custom class, I have a loop set up
that creates a number of CheckBox instances based on the results of
a remoting query.
This loop works fine, and I see the new component instances
on the stage.
However, when I try to define the "click" method for each of
those checkboxes, I'm getting a compiler error:
"There is no property with the name 'click'."
I've included the CheckBox class using the import statement
at the top of my AS file (import mx.controls.CheckBox;).
Here is the block of code throwing the error:

click isn't a property but an event. If you want to respond
to that event, you have to setup a listener. Hit F1 and search for
Checkbox.click

Bad class file error

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