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  • server fails to start

    i have downloaded the spring dm server zip file and have extracted into c:\spring-dm-server folder on windows xp machine.

    i ran the startup.bat from the bin directory, but i am getting this error

    C:\springsource-dm-server\bin>startup.bat -clean
    Exception in thread "main" java.lang.UnsupportedClassVersionError: com/springsou
    rce/server/kernel/bootstrap/Bootstrap (Unsupported major.minor version 49.0)
    at java.lang.ClassLoader.defineClass0(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknow n 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)


    what am i missing?

  • #2
    The "Unsupported major.minor version 49.0" indicates that the classes you try to execute are newer than your JRE you try to run them in. So, make sure that the JRE in your classpath is at least version 1.5.

    Joachim

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