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Ubuntu error

Exception in thread "main" java.lang.UnsupportedClassVersionError: JP/co/esm/caddies/jomt/Jude : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass( at at at$100( at$ at$ at Method) at at java.lang.ClassLoader.loadClass( at sun.misc.Launcher$AppClassLoader.loadClass( at java.lang.ClassLoader.loadClass( at sun.launcher.LauncherHelper.checkAndLoadMain(

Product: Astah Professional

Hi Rodrigo,

Thanks for your post. We'll need some more information, please email us the following files/information to

  1. Description when this error happened
  2. astah_pro.log
  3. astah.log

You can find the 2 & 3 in the USER_HOME.astah\professional directory.



Update your java version to 8

probably you have openjdk7

Hey Rodrigo,

If you are using openjdk as Yuri pointed out, Astah works only on Oracle Java 8 Update 102 or later (see system requirements), so please change the Java by following the instruction here:

How to run Astah on Linux

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