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  1. #1
    Lewy is offline Member
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    Default 7u45 Java Control Panel problems

    I'm on a Mac with OS X Mavericks and Java 7u45. In Java Control Panel > Security, the Security Level "slider" is grayed-out (can't change it, it's set at 'Very High') and the 'Enable Java content in browser' check-box will not retain a check-mark. So I can't change either of these two settings. This happens as a 'Standard User' with Authentication or logged-in as an 'Administrator'. Any ideas on how to proceed?

    Thanks,

  2. #2
    prock is offline Member
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    Default Re: 7u45 Java Control Panel problems

    for what its worth, I have the exact same problem. multiple posts on various forums indicating significant issues with mavericks and java.

    I have uninstalled Java, reinstalled, checked permissions, restarted, etc without success.

    have you found a solution?

  3. #3
    Lewy is offline Member
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    Default Re: 7u45 Java Control Panel problems

    Quote Originally Posted by prock View Post
    for what its worth, I have the exact same problem. multiple posts on various forums indicating significant issues with mavericks and java.

    I have uninstalled Java, reinstalled, checked permissions, restarted, etc without success.

    have you found a solution?
    I have not found a solution. Interestingly (to me), after I initially upgraded to Mavericks I was able to change the security level - slid it from 'High' to 'Very High'. But since then something has happened, and now I'm in this limbo state. I do have both Java 6 and Java 7 installed on my machine and I can use either to develop Java applications. But I can't 'Enable Java content in the browser' so I get the 'Missing plug-in" message.

  4. #4
    prock is offline Member
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    Default Solution: Re: 7u45 Java Control Panel problems

    Quote Originally Posted by Lewy View Post
    I have not found a solution. Interestingly (to me), after I initially upgraded to Mavericks I was able to change the security level - slid it from 'High' to 'Very High'. But since then something has happened, and now I'm in this limbo state. I do have both Java 6 and Java 7 installed on my machine and I can use either to develop Java applications. But I can't 'Enable Java content in the browser' so I get the 'Missing plug-in" message.
    I have a solution that has worked on 2 macs-an iMac and a macbook pro-both that were upgraded to mavericks. I got the help of a very smart person. his diagnosis was that there was interaction between Java 6 and 7 that was not a problem with 10.8.5 but having both is a problem with mavericks. my guess is that you previously installed Java 7 on top of Java 6, which was true for me.

    so, we eliminated all java files we could find, uninstalled Java 7, rebooted, flushed caches and reinstalled Java 7.

    here are the specific steps:
    -- /library/preferencepanes there is a file called "JavaControlPanel.prefPane" move that to trash

    --/library/ move the Java folder to the trash

    --/library/ move the Oracle folder to the trash

    --uninstall JRE 7.45
    you can do this by finding "JavaAppletPlugin.plugin" and moving it to the trash. that file is in /library/internet plug-ins. described here:
    How do I uninstall Java 7 for my Mac?

    --restarted and booted in safe mode (hold down the shift key during restart)
    Mac OS X: What is Safe Boot, Safe Mode?

    --once safe boot was finished I logged back in and installed JRE-7u45

    at that point the Java control panel was back to working normally. You can adjust the security slider and the "enable Java content in the browser" will be checked.

    I do not know whether all these steps are required. I do know that this procedure has restored Java 7 functionality to my machines.

    hopefully Oracle will release a revised Java 7 that removes the offending files as part of its installation.

    if you follow these steps, let me know the outcome.

    good luck!

    pete

  5. #5
    Lewy is offline Member
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    Default Re: Solution: Re: 7u45 Java Control Panel problems

    Quote Originally Posted by prock View Post
    if you follow these steps, let me know the outcome.

    good luck!

    pete
    Thanks, Pete. You are absolutely correct - I do have both Java 6 & Java 7 installed. I will try your solution, and I expect it will work.

    Lewy

  6. #6
    Lewy is offline Member
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    Default Re: Solution: Re: 7u45 Java Control Panel problems

    Quote Originally Posted by prock View Post
    if you follow these steps, let me know the outcome.

    good luck!

    pete
    I followed your instructions and achieved the desired result. Java Control Panel is now (again) operational.

    Thanks Pete

    Lewy

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