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Matlab freezing after Java update in OS X

Q: Matlab loads, but "freezes" after taking Java update in OS X

  • After taking the Java update via the App store, Matlab will launch and open the last file, however it will not accept input. Can still be quit normally. This is a Java issue and reinstalling Matlab or a new user profile will not resolve.


  • Affects MATLAB 2012b and earlier, with the Java for OS X 2013-004 update
  • The original update gives build 1.6.0_51-b11-456-10M4508
  • This can be verified by running the command below in terminal and comparing the build
    java -version
    Java(TM) SE Runtime Environment (build 1.6.0_45-b06-451-11M4406)
    Java(TM) SE Runtime Environment (build 1.6.0_51-b11-457-11M4509)
    Java(TM) SE Runtime Environment (build 1.6.0_51-b11-456-10M4508)


  • Apple's update has been fixed, however it is not being pushed via updates to clients already affected. It is now safe to update via the Appstore, Java for OS X 2013-004 is the package.
  • If you are stuck on version 10M4508, you can manually update:

See Also

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

August 04, 2020

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