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viatra / massif

Massif is a Matlab Simulink Integration Framework for Eclipse
https://viatra.github.io/massif/
Eclipse Public License 1.0
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Which Eclipse Version is 0.7 compatible with? #222

Open lanpirot opened 2 years ago

lanpirot commented 2 years ago

I tried installing all kinds of versions of Eclipse (also Java and Matlab), but somehow this error always crept in, when trying the Command Evaluation Server (the Matlab Control works):

modelExporter.createSimulinkModel('...','...') Creating controller.. Controller created Creating Local Script Evaluator Local Script Evaluator Created Importing model: ...\massif\massif-cli\Example_MATLAB.slx Java exception occurred: java.lang.UnsupportedClassVersionError: org/eclipse/core/runtime/IStatus has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 at java.lang.ClassLoader.defineClass1(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.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at com.mathworks.jmi.CustomURLClassLoader.findClass(ClassLoaderManager.java:760) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at hu.bme.mit.massif.simulink.cli.CLIEMFCreator.createSimulinkModel(CLIEMFCreator.java:58) at hu.bme.mit.massif.simulink.cli.CLIEMFCreator.createSimulinkModel(CLIEMFCreator.java:79)

This happens on my system with Eclipse: Photon (4.8) Java: 1.8 Matlab: R2018b Viatra: 2.0 Massif: 0.7

abelhegedus commented 2 years ago

java.lang.UnsupportedClassVersionError: org/eclipse/core/runtime/IStatus has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

This is not (directly) a Massif problem, it means you are running an Eclipse Platform with minimum Java 11 requirement (class file version 55.0) over Java 8 (class file version 52.0).

Based on the stacktrace, you are running Matlab CLI version, in Matlab R2018b. See https://www.mathworks.com/help/compiler_sdk/java/configure-your-java-environment.html for checking the Java version found by Matlab.

Did you use the release versions or built a new CLI package from source?