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console error message

Posted on 2013-11-29
Medium Priority
Last Modified: 2013-12-07

I am receiving a error message  in the console. Can you please tell what is this error and how to fix it ?

error message is attached.
Question by:cofactor
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LVL 12

Expert Comment

by:Sharon Seth
ID: 39685689
java.lang.UnsupportedClassVersionError: kl/ta/cp/action/PaymentServicesAction : Unsupported major.minor version 51.0

It means you are using different versions of the jar that has that class. Use the same version during compilation and during deployment.

Author Comment

ID: 39686504
>>>Use the same version during compilation and during deployment.

I am Eclipse Indigo 3.7  IDE......and it  has   java build path JRE 1.6

also I have added Jboss 7  server which has server runtime JRE also 1.6

tell  me some diagnostics checks to identify root case.

Author Comment

ID: 39686834
comments please
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LVL 11

Expert Comment

ID: 39689493
Check JRE version in preference>java>compile

Author Comment

ID: 39689538

its   1.6

Author Comment

ID: 39689548
I am going to do a diagnostics check other way...

Is it possible to check  every jar ( inside LIB folder) files's compiler  java version ?   I am asking this .....because you know JAR are files are already pre-compiled and packaged....we dont compile them ...so I want to check their version also.....but there are many JAR files
LVL 11

Expert Comment

ID: 39689577
which jar has PaymentServicesAction ?
Also is it possible for you to change 1.6 to 1.7 and run it.

Author Comment

ID: 39689590
>>>which jar has PaymentServicesAction ?

umm......This is not in a JAR....this is just a separate  java  file  here.  ...this is just compiling in Eclipse IDE  and you know I get the PaymentServicesAction class file in the build/classes folder !

>>>Also is it possible for you to change 1.6 to 1.7 and run it.

I don't  have  java 1.7 in my system at all....I have 1.6  installed in my machine.

I  don't understand where from this 1.7  is  attacking to this class ! I am clueless here.
LVL 11

Assisted Solution

Manish earned 800 total points
ID: 39689621
You should delete classes and recompile it.
Also check eclipse java build path,installed jre , windows java version(java -version).

Author Comment

ID: 39689725
>>>You should delete classes and recompile it.

tested it....no improvement.

>>>Also check eclipse java build path

java build path > library > jre 1.6

>>installed jre

>>windows java version(java -version)


Accepted Solution

cofactor earned 0 total points
ID: 39691553
issue resolved.

issue was with  Eclipse Project Facet. In project facet  version was 1.7

  <installed facet="java" version="1.7"/>

I put 1.6 here  to fix it

Author Closing Comment

ID: 39702908
it was a issue with project facet

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