Error #750: initialization error???

Does anyone know why JDeveloper would give me this error?
file java\lang\Object.class not found on classpath
is there a specific library I have to add in the project properties?
Thanks
Jazz

I was getting the same error. It is a JDK issue, but here is a more detailed solution. The following solution worked for me:
Go to Tools->OC4J Preferences in JDeveloper.
Go to Java Compiler under the Globals option.
The compiler selected was ojc & the directory was a bin under the jdev installation directory. I switched the compiler to javac and the bin directory to where I had installed my JDK.
This resolved the issue completely.

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JBUILDER5 :"sample.java": Error #: 750 : initialization error: com.borland"

Hi there,
I am trying to compile a few sample with new release of jdk1.4.0. It does with DOS-Promt. I get an error like ""sample.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0" when I try it with Jbuilder5. Any idea to work around this is apprecited.
Thanks
SY.

Forget employing jdk 1.4 with JB 5, it dosen't support it; too many changes in the jdk. If you want to employ it you'll have to undate to JB 6.0. Sorry.
Abraham.

Error 750

Could someone please tell me how to corect error 250 It says
"satlama.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: neither class nor source found for java.lang.Object

> Could someone please tell me how to corect error 250
It says
"satlama.java": Error #: 750 : initialization error:
com.borland.compiler.symtab.LoadError: neither class
nor source found for java.lang.Object
My advice is to drop the IDE at first, and write your code with a simple text editor and compile your code from the command prompt.
Follow the instructions here:
http://java.sun.com/docs/books/tutorial/getStarted/cupojava/index.html

Errors on wrong version during compiling

I'm new in JAVA, please help.
I am using "StringBuilder" class in my java program and I notited that it needs the JDK 1.5 compiler. AFter I installed the JDK 1.5.02 and I got this compilation error when I compile my program using JBuilder 5.
"Lottery.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 49.0
Anybody out there can help?

You can't use 1.5.0 in JB5. I think you need JB2004 at least.

Help with error message i JBuilder

Hi everyone!
Hopefully some of you can help me with a really annoying problem. Every time I compile "MyClass.java" I get the following error-message:
"MyClass.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: java.io.IOException: class not found: class java.lang.Object
If anyone knows how to solve this problem, please let me know!
In advance, thanks!
JB

looks like you don't have java installed or the paths got lost because your JBuilder has no idea where java is :)

Connecting to MySql Database

java.lang.NoClassDefFoundError: java/sql/Savepoint
     at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:268)
     at java.sql.DriverManager.getConnection(DriverManager.java:517)
     at java.sql.DriverManager.getConnection(DriverManager.java:199)
     at mysql.Untitled1.main(Untitled1.java:28)
Exception in thread "main" What happened now I tried to connect to a MySql database and it gives me this error I have the new Connector J for this purpose but still

Now I Installed the J2SDK 1.4.1 and compiled the following class with the command line javac
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class myClass {
public myClass() {
public static void main(String[] args) {
   myClass here = new myClass();
try{
   Class.forName("com.mysql.jdbc.Driver");
catch (Exception e){
e.printStackTrace();
try{
   Connection con = DriverManager.getConnection("jdbc:mysql://localhost/test?user=amrhsn&password=ammars");
   catch (Exception e){
    e.printStackTrace();
}Although it compiled perfectly but on running gives the following error
Exceptoin in thread "main" java.lang.NoClassDefFoundError : myClass
and the same file when I try to compile it with my JBuilder 4 Enterprise edition after changing the JDK from 1.3.3. to J2SDK 1.4.1 give the following error.
"myClass.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0
What is the problem!!!!!

Making a seperate frame non resizable

Is it possible to make a seperate frame non-resizable and if so how? If I set the resizable property of the window then this simply makes the browser non-resizable rather than the seperate frame. Is there some PL/SQL code that can do this for me or is it possible to set this in the forms web config? Thanks for any help
Dan

I have tried this method, it looks like it should run, but when i compile it the browser displays................
"Untitled1.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: neither class nor source found for java.lang.Object
public class Untitled1 extends Component {
public void createPanel()
JFrame frame = new JFrame();
frame.setUndecorated(true);
frame.setLayout(new BorderLayout());
MyDisplay test = new MyDisplay(frame);
test.setLayout(new BorderLayout());
frame.add(test, BorderLayout.CENTER);
JLabel label = new JLabel("This is just a test");
test.add(label, BorderLayout.CENTER);
frame.pack();
frame.setSize(500, 500);
// make sure you pack and/or set size first...
Dimension dS = Toolkit.getDefaultToolkit().getScreenSize();
Dimension dF = frame.getSize();
// make sure it's not off screen
int x = (dS.width/2)-(dF.width/2);
int y = (dS.height/2)-(dF.height/2);
if(x < 0) x = 0;
if(y < 0) y = 0;
frame.setLocation(x, y);
frame.setVisible(true);
contentpane.add(sc);
jscrollpane sc = new jscrollpane();
jtextarea ta = new jtextarea();
/**Main method*/
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
catch(Exception e) {
e.printStackTrace();
new untitled1();
Do you know how i can correct this erreor!

Class cannot be found

Hi guys..
After install JBuilder8, i got this error msg:
"P1Q3.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: java.io.IOException: class not found: class java.lang.Object
Can you guys solve this error for me?
Thanks

This is because you have installed JBuilder twice?
You must go to: tools\configure JDK and remove the "old jdk".
Then add JDK again...

Jdev 9.0.5.1 with jdk 1.5.0_06

I developed a project with jdev 9.0.5 with its default jdk 1.4.2_08. Then I installed jdk1.5.0_06 on the system. Then I defined jdk1.5 to the project in the jdeveloper, I used ojvminstall.bat. When I "make" the project I get,
"Error: initialization error: class file has wrong version 49.0, should be 45.3 or 46.0 or 47.0 or 48.0 on classpath C:\jdk1.5.0_06\jre\lib\rt.jar;C:\jdk1.5.0_06\jre\lib\i18n.jar;C:\jdk1.5.0_06\jre\lib\sunrsasign.jar;C:\jdk1.5.0_06\jre\lib\jsse.jar;C:\jdk1.5.0_06\jre\lib\jce.jar;C:\jdk1.5.0_06\jre\lib\charsets.jar;...."
There is a problem about the jdk versions but I dont know how to solve.
Thanks...

I do not use libraries of JDK 1.5 . I make a simple program "HelloWorld". The code is the following :
*********SessionEJBBean.java
public class SessionEJBBean implements SessionBean
public void ejbCreate()
public void ejbActivate()
public void ejbPassivate()
public void ejbRemove()
public void setSessionContext(SessionContext ctx)
public String testEJB()
return "Hello World";
***************SessionEJBClient.java
public class SessionEJBClient
public static void main(String [] args)
SessionEJBClient sessionEJBClient = new SessionEJBClient();
try
Context context = getInitialContext();
SessionEJBHome sessionEJBHome = (SessionEJBHome)PortableRemoteObject.narrow(context.lookup("SessionEJB"), SessionEJBHome.class);
SessionEJB sessionEJB;
// Use one of the create() methods below to create a new instance
sessionEJB = sessionEJBHome.create();
System.out.println("Show "+sessionEJB.testEJB());
// Call any of the Remote methods below to access the EJB
// sessionEJB.testEJB( );
catch(Throwable ex)
ex.printStackTrace();
private static Context getInitialContext() throws NamingException
// Get InitialContext for Embedded OC4J.
// The embedded server must be running for lookups to succeed.
return new InitialContext();
I use JDeveloper 10.1.2.0.0.
The "make" is the following:
[10:08:54] Successful compilation: 0 errors, 0 warnings.
I "run" SessionEJB ,The error that shows to me is the following:
error #750: initialization error: class file has wrong version 49.0, should be 45.3, 46.0, 47.0 or 48.0 on classpath C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\activation.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\dnsns.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\jxl.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\localedata.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\mail.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\ojdbc14.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\struts.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\sunjce_provider.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\ext\sunpkcs11.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\rt.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\jsse.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\jce.jar;C:\Archivos de programa\Java\jdk1.5.0\jre\lib\charsets.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\oc4j.jar;C:\\Archivos de programa\\jdev1012\\jdev\\lib\\jdev-oc4j.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\ejb.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\servlet.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\ojsp.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jndi.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jdbc.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\iiop.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\iiop_gen_bin.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jms.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jta.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jmxri.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\javax77.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\javax88.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\opmn\lib\optic.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\lib\dms.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\diagnostics\lib\ojdl.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\connector.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\bcel.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\cos.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jsse.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jnet.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jcert.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\activation.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\mail.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\javavm\lib\jasper.zip;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\lib\xmlparserv2.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jaxp.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jaas.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\jazn.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\jdbc\lib\classes12dms.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\jdbc\lib\nls_charset12.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\soap\lib\soap.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\webservices\lib\wsserver.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\webservices\lib\wsdl.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\rdbms\jlib\aqapi.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\jem.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\http_client.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\jlib\jssl-1_1.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\sqlj\lib\runtime12ee.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\..\..\sqlj\lib\translator.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\lib\crimson.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\adfm.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\adfmtl.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\adfmweb.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jct.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jctejb.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jdomorcl.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jimdomains.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jmt.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\bc4jmtejb.jar;C:\\Archivos de programa\\jdev1012\\BC4J\\lib\\collections.jar;C:\\Archivos de programa\\jdev1012\\jlib\\ojmisc.jar;C:\\Archivos de programa\\jdev1012\\ord\\jlib\\ordim.jar;C:\\Archivos de programa\\jdev1012\\ord\\jlib\\ordhttp.jar;C:\\Archivos de programa\\jdev1012\\jlib\\share.jar;C:\\Archivos de programa\\jdev1012\\jlib\\regexp.jar;C:\\Archivos de programa\\jdev1012\\jlib\\jdev-cm.jar;C:\\Archivos de programa\\jdev1012\\lib\\oraclexsql.jar;C:\\Archivos de programa\\jdev1012\\lib\\xsqlserializers.jar;C:\\Archivos de programa\\jdev1012\\jlib\\bigraphbean.jar;C:\\Archivos de programa\\jdev1012\\jlib\\bigraphbean-nls.zip;C:\\Archivos de programa\\jdev1012\\jlib\\jewt4.jar;C:\\Archivos de programa\\jdev1012\\toplink\\jlib\\toplink.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\applib;C:\\Archivos de programa\\jdev1012\\sqlj\\lib;C:\\Archivos de programa\\jdev1012\\sqlj\\lib\\runtime.jar;C:\\Archivos de programa\\jdev1012\\sqlj\\lib\\runtime12.jar;C:\\Archivos de programa\\jdev1012\\lib\\xsu12.jar;C:\\Archivos de programa\\jdev1012\\lib\\dsv2.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\jsp\\lib\\taglib;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\jsp\\lib\\taglib\\jaxen.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\jsp\\lib\\taglib\\ojsputil.jar;C:\\Archivos de programa\\jdev1012\\j2ee\\home\\jsp\\lib\\taglib\\standard.jar;C:\\Archivos de programa\\jdev1012\\jdev\\lib\\jdev-rt.jar;C:\\Archivos de programa\\jdev1012\\jdev\\lib\\ojc.jar;D:\\ProyectosJDeveloper\\Application1\\Project\\classes;C:\\Archivos de programa\\jdev1012\\lib\\xmlcomp.jar;.
1 error
Error compiling D:\ProyectosJDeveloper\Application1\Project\classes: Syntax error in source
Error in application current-workspace-app: Error loading package at file:/D:/ProyectosJDeveloper/Application1/Project/classes/,
Error compiling D:\ProyectosJDeveloper\Application1\Project\classes: Syntax error in source
06/03/27 09:54:09 done.
06/03/27 09:54:09 Error instantiating application 'current-workspace-app' at file:/D:/ProyectosJDeveloper/Application1/Application1-oc4j-app.xml: Error initializing ejb-module; Exception Error in application current-workspace-app: Error loading package at file:/D:/ProyectosJDeveloper/Application1/Project/classes/,
Error compiling D:\ProyectosJDeveloper\Application1\Project\classes: Syntax error in source
Somebody can help me

JBuilder 5

Hi everyone,
i am new to JBuilder 5, but not too Java. I just switch my primary JDK development to SDK 1.4 beta 3 build 84. Whenever i try to compile any of my classes, i always get the same message
<classname>: Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0.
i would appreciate any tips or hint into correcting this problem. for now i will return to JDK 1.3.1. This runs and compiles without a problem.
i checked the Borland site, and they are of no help.
thanks alot for any help that can be offered.
Tim

Never mind everyone....i found my answer on a newsgroup.. There is a known bug without a known answer between JBuilder 5 and JDK 1.4.
thanks anyways.
Tim

How about changing jdk on Jbuilder4

Hi, i am using Jbuilder4, i have the options to accomplish what you have told above(Tools--configure JDK--etc). Everything works fine & the new JDK comes up, but when i try to compile, it comes up with
"Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0
I looked out for this guy on net but couldnt figure out the problem , any suggestions ..?

Well ya i am trying to use jdk1.4.0(presently i am using jdk1.3.1) in Jbuilder4. I have seen that this problem is wrt to the version# passed by sun java. Yes there is a software hack(http://www.stephenkelvin.de/MerlinPatch/) to fix this version information in jdk, but thats illegal wrt the sun copyright, so corporate developers beware !!

Jbuilder5 & jsdk1.4-beta2 have problem?

I use jbuilder5.
I download the new jsdk1.4-beta2.
I config new jdk setting and add 1.4
but when i run any classes under this jdk setting,
jbuilder display error
"xxxx.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0
why?
thanks

The reason for this is that jbuilder 5 is itself running under java 1.3.0, which limits class versions to 47 (I think)
So regardless of what jdk you set up in the configure jdk menu jbuilder itself cannot read any classes created with jdk 1.4
To solve this problem, get jbuilder to run under jdk1.4 as follows:
shutdown jbuilder
in your jbuilder5/bin directory you have a file called jdk.config edit this and change 2 entries, javapath and addpath
These are initially set to be:
javapath ../jdk1.3/bin/java
addpath ../jdk1.3/lib/tools.jar
(with some lines in between)
Change these to point to your jdk1.4 beta installation and restart jbuilder
Everything should work fine now.
As an added bonus, you may see all the fonts look different in jbuilder now, mine did on win2000.

Servlets and Jbuilder

although I am writing a right code in the Jbuilder that has to do with servlets I am getting this error:
"Hello.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: class file has wrong version 48.0
Could someone tell me with what has to do this error?
Thank youu

I guess you're using java 1.4 ?
Sun has changed the format of the class files produced by JDK 1.4, hence the 'wrong version' message.
Go here for one solution to your problem :
http://www.StephenKelvin.de/MerlinPatch/
The file is called ClassVersionLimiter.java.

JBuilder 8 ...

While compiling any java programm I get this error:
"Game.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: java.io.IOException: class not found: class java.lang.Object

I'm still wondering why people use eclipse.Did you really mean that?
It's free, very powerfull and intuitive.Certainly free. I'm not sure I'd call it intuitive. Also lacks customizability, particularly on the editor, unless I'm missing something.
Take also a look to his plugins !There doesn't seem to be a good GUI editor, although I haven't looked very hard. I'll convert to Ecplise and SWT when I've got a good GUI editor that I can use.

Please I need a little help with Jbuilder7

Hello:
I�m working with Jbuilder7 Enterprise, i�m a trying to compile a program that use JMS Api, but when i make it, i always receive a message like this:
"Jms1.java": Error #: 750 : initialization error: com.borland.compiler.symtab.LoadError: java.io.IOException: class not found: class java.lang.Object.
I�ve revised project�s properties and it seems that they are well.
Even, this message appears if i use JMS wizard of Jbuilder.
Could anyone tell me what�s wrong?
Many thanks.
Sorry for my English ;-).

Hi,
When u have this error message in JBuilder, generaly, that's 'cause ur JBuilder don't succes to locate ur JDK. Go to Tools / Configure JDKs... and verify if the JDK u're using in ur project is valid and/or try to re-configure it.
By default, JBuilder embed is own JDK located in $JBUILDER_HOME/jdk1.3.1
Hope this can help u
Seb

Error #750: initialization error???

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