Java.lang.UnsupportedClassVersionError: test (Unsupported major.minor version 50.0)

[shiva valanukonda]

Hi ,

I have changed my PC recently. so i have installed all the softwares mentioned below.

Java 1.6
Tomcat 6

After that i installed Oracle 10g.

I have set the class path properly like the below.
PATH : C:\Program Files\Java\jdk1.6.0\bin;C:\Program Files\Apache Software Foundation\Tomcat 6.0\bin;.
CLASS PATH : C:\Program Files\Java\jre1.6.0\lib\rt.jar;C:\Program Files\Apache Software Foundation\Tomcat 6.0\lib\servlet-api.jar;C:\Program Files\Apache Software Foundation\Tomcat 6.0\lib;C:\oracle\product\10.1.0\Db_1\jdbc\lib\classes12.jar;E:\hibernateJAR\antlr-2.7.6.jar;E:\hibernateJAR\asm.jar;E:\hibernateJAR\cglib-2.1.3.jar;E:\hibernateJAR\commons-collections-2.1.1.jar;E:\hibernateJAR\commons-logging-1.0.4.jar;E:\hibernateJAR\dom4j-1.6.1.jar;E:\hibernateJAR\hibernate3.jar;E:\hibernateJAR\jta.jar;E:\hibernateJAR\log4j-1.2.11.jar;.;

I am getting the below error when i run my test program:

C:\Documents and Settings\shiva\Desktop>java test
Exception in thread "main" java.lang.UnsupportedClassVersionError: test (Unsupported major.minor version 50.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)

And my system pointing to Java 1.4 version when i run the java -version on command prompt

C:\Documents and Settings\shiva\Desktop>java -version
java version "1.4.2_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_03-b02)
Java HotSpot(TM) Client VM (build 1.4.2_03-b02, mixed mode)

Please help me ..

Thanks

[William P O'Sullivan]

It looks like your 1.6 Java is not getting picked up.

I would find out exactly where it's picking up java.exe from.

Your PATH example is very short, I would expect to see c:\windows etc.. in there.
I'll bet if you show and follow the Windows path you'll find the old 1.4 executable.

WP

[Aniruddh Joshi]

To explain the error message to you, version 50 refers to java 6. Your machine is expecting class version 48 i.e java 1.4.

[shiva valanukonda]

Hi William P O'Sullivan,

Could you please let me know what exactly you are referring in PATH.
Some thing like c:\windows etc.. you are expecting ?
what is the default one for Win XP SP3.

Thanks for the reply...


And one more issue is , when i was trying to open Eclipse Version: Indigo Service Release 2, i have got one error saying Java run time error.
I have uninstalled the Oracle 10g now. I started eclipse it is working fine.

So, there might be problem with Oracle ..
Could you please suggest which version of Oracle will be best one.

[Wei Dai]

>Java.lang.UnsupportedClassVersionError: test (Unsupported major.minor version 50.0)
>I have set the class path properly like the below.
PATH : C:\Program Files\Java\jdk1.6.0\bin;C:\Program Files\Apache Software Foundation\Tomcat 6.0\bin;.
CLASS PATH : C:\Program Files\Java\jre1.6.0\lib\rt
>And my system pointing to Java 1.4 version when i run the java -version on command prompt
Your setting command should be wrong. If you use set in command console, you will find path point to java 1.4
You can try
SET PATH=C:\Program Files\Java\jdk1.6.0\bin;%PATH%
SET CLASSESPATH=C:\Program Files\Java\jre1.6.0\lib\rt;%CLASSESPATH%