Java upgrade problem on CentOS 6.5












2















I want to upgrade my jdk on a CentOS server, after some simple searches I found some solutions.



From this link, you can see that the instructions are simple.




  • install your chosen jdk from rpm package or from source


  • possibly choose some alternatives


  • check that the new version installed (java -version)



The first two steps above, I easily completed, but in check version step I get this error:



Error occurred during initialization of VM

java/lang/NoClassDefFoundError: java/lang/Object


I have also checked:



alternatives --config java


and symbolic links.



I have also tried which command to find out what java is actually running and this was the link directions.



/usr/bin/java -> /etc/alternatives/java -> /usr/java/jdk-1.8.0_40/bin/java


the weird thing is that when I run:



/usr/bin/java -version


It is OK and it returns the version but when I run java without any prefix I got that error.






centos java







share|improve this question
















bumped to the homepage by Community♦ 4 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.




















    2















    I want to upgrade my jdk on a CentOS server, after some simple searches I found some solutions.



    From this link, you can see that the instructions are simple.




    • install your chosen jdk from rpm package or from source


    • possibly choose some alternatives


    • check that the new version installed (java -version)



    The first two steps above, I easily completed, but in check version step I get this error:



    Error occurred during initialization of VM
    
java/lang/NoClassDefFoundError: java/lang/Object


    I have also checked:



    alternatives --config java


    and symbolic links.



    I have also tried which command to find out what java is actually running and this was the link directions.



    /usr/bin/java -> /etc/alternatives/java -> /usr/java/jdk-1.8.0_40/bin/java


    the weird thing is that when I run:



    /usr/bin/java -version


    It is OK and it returns the version but when I run java without any prefix I got that error.






    centos java







    share|improve this question
















    bumped to the homepage by Community♦ 4 hours ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















      2












      2








      2








      I want to upgrade my jdk on a CentOS server, after some simple searches I found some solutions.



      From this link, you can see that the instructions are simple.




      • install your chosen jdk from rpm package or from source


      • possibly choose some alternatives


      • check that the new version installed (java -version)



      The first two steps above, I easily completed, but in check version step I get this error:



      Error occurred during initialization of VM
      
java/lang/NoClassDefFoundError: java/lang/Object


      I have also checked:



      alternatives --config java


      and symbolic links.



      I have also tried which command to find out what java is actually running and this was the link directions.



      /usr/bin/java -> /etc/alternatives/java -> /usr/java/jdk-1.8.0_40/bin/java


      the weird thing is that when I run:



      /usr/bin/java -version


      It is OK and it returns the version but when I run java without any prefix I got that error.






      centos java







      share|improve this question
















      I want to upgrade my jdk on a CentOS server, after some simple searches I found some solutions.



      From this link, you can see that the instructions are simple.




      • install your chosen jdk from rpm package or from source


      • possibly choose some alternatives


      • check that the new version installed (java -version)



      The first two steps above, I easily completed, but in check version step I get this error:



      Error occurred during initialization of VM
      
java/lang/NoClassDefFoundError: java/lang/Object


      I have also checked:



      alternatives --config java


      and symbolic links.



      I have also tried which command to find out what java is actually running and this was the link directions.



      /usr/bin/java -> /etc/alternatives/java -> /usr/java/jdk-1.8.0_40/bin/java


      the weird thing is that when I run:



      /usr/bin/java -version


      It is OK and it returns the version but when I run java without any prefix I got that error.






      centos java




      centos java






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 9 '16 at 6:24









      Vlastimil

      7,8831263134




      7,8831263134










      asked Nov 13 '14 at 21:58









      muradinmuradin

      1115




      1115





      bumped to the homepage by Community♦ 4 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community♦ 4 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
























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          The problem was a system variable CLASSPATH.



          and it must be exported in some way for example /etc/bashrc file because jdk needs to know the pass of classes and libraries to load it's modules.



          in my case i sat CLASSPATH=/usr/java/jdk1.8.0_40/lib.






          share|improve this answer























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            0














            The problem was a system variable CLASSPATH.



            and it must be exported in some way for example /etc/bashrc file because jdk needs to know the pass of classes and libraries to load it's modules.



            in my case i sat CLASSPATH=/usr/java/jdk1.8.0_40/lib.






            share|improve this answer




























              0














              The problem was a system variable CLASSPATH.



              and it must be exported in some way for example /etc/bashrc file because jdk needs to know the pass of classes and libraries to load it's modules.



              in my case i sat CLASSPATH=/usr/java/jdk1.8.0_40/lib.






              share|improve this answer


























                0












                0








                0







                The problem was a system variable CLASSPATH.



                and it must be exported in some way for example /etc/bashrc file because jdk needs to know the pass of classes and libraries to load it's modules.



                in my case i sat CLASSPATH=/usr/java/jdk1.8.0_40/lib.






                share|improve this answer













                The problem was a system variable CLASSPATH.



                and it must be exported in some way for example /etc/bashrc file because jdk needs to know the pass of classes and libraries to load it's modules.



                in my case i sat CLASSPATH=/usr/java/jdk1.8.0_40/lib.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 13 '14 at 22:32









                muradinmuradin

                1115




                1115






























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