How can I downgrade my Java version and Runtime Environment to 6?

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How can I downgrade my Java version and Runtime Environment to 6?

Hi, thanks for reading this in advance:

I have a couple problems. Ever since Java Preferences was removed in one of Lion's updates I have been having trouble with java.

How do I downgrade my java and runtime environment to java 6?
When I go into terminal, and type java -version, this is what I get:

java version "1.7.0_09"

Java(TM) SE Runtime Environment (build 1.7.0_09-b05)

Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

How do I downgrade the "java version" to 6 and how do I downgrade the SE Runtime Environment to 6?

I accidentally installed 7 a couple days ago and I've been having trouble with some applications.

Thank you so much.

iMac, Mac OS X (10.7.5)

Posted on Nov 16, 2012 12:00 PM

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Answer 1

Kappy

Level 10

362,023 points

Nov 16, 2012 12:06 PM in response to Minionsman

Try this:

Q: Can I restore Apple Java 6 after uninstalling Oracle Java 7?

A: Go back to Apple Java 6 using the following instructions:

Uninstall Oracle Java 7 by deleting the plug-in file. From a Terminal window enter:% sudo rm -rf /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
Create a symlink using the following command, entered on a single line:% sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

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Answer 2

Minionsman Author

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Nov 16, 2012 12:15 PM in response to Kappy

Ok, I did the first part,

sudo rm -rf /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

But I'm having trouble with the second part. Apparently

sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

Does not exist? No such file or directory.

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Answer 3

Kappy

Level 10

362,023 points

Nov 16, 2012 12:27 PM in response to Minionsman

Try it this way:

sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin/Library/Internet/Plug-Ins/JavaAppletPlugin.plugin

Don't type it in. Just copy it and paste at the Terminal's prompt.

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Answer 4

Minionsman Author

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Nov 17, 2012 9:03 AM in response to Kappy

Still doesn't work.

But I know what you're getting at.

I've have done that before, but it still doesn't downgrade everything to 6. I just don't my java web to be downgraded. I accidentally installed java 7 and I want to downgrade everything to 6. Including the runtime environment.

Sorry if I'm stupid and that actually does downgrade everything. (it didn't when I did it)

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Answer 5

Kappy

Level 10

362,023 points

Nov 17, 2012 9:23 AM in response to Minionsman

In the Terminal enter: java -version

What does it display?

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Answer 6

Minionsman Author

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Nov 17, 2012 10:26 AM in response to Kappy

java version "1.7.0_09"

Java(TM) SE Runtime Environment (build 1.7.0_09-b05)

Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

I want to turn the java version 1.7 to 1.6

And I want to turn Java(TM) SE Runtime Environment (build 1.7)

To (build 1.6)

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Answer 7

Kappy

Level 10

362,023 points

Nov 17, 2012 11:11 AM in response to Minionsman

I don't know if these are any different:

How to downgrade Java 7 to Java 6 on Mac OS X - YouTube

How can I uninstall Oracle Java 7 and reinstall Apple's Java 6 on my Mac? - Knowledgebase - ParaChat

If you have no happiness from these, then try a Google search which is how I found the above.

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Answer 8

WiseByte

Level 1

10 points

Nov 30, 2012 7:42 AM in response to Minionsman

Minionsman, check this out: http://wisebyte.blogspot.com/2012/11/oracle-java-broke-final-cut-server.html This should fix you up.

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Answer 9

Jul 8, 2013 4:41 PM in response to Minionsman

Dear Minionsman and everyone who reads this. I was so happy when i downgraded and i wanted to share it to all, I have found out why it says this in terminal

java version "1.7.0_09"

Java(TM) SE Runtime Environment (build 1.7.0_09-b05)

Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

and why it says something different on java tester

Its because java 7 blocks every java version below it.

How do you downgrade?

Well all you do is delete a few files 😀

INSTRUCTIONS BELOW

1.Open Terminal

2. Enter these commands

sudo mkdir -p /Library/Internet\ Plug-Ins/disabled
sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled
sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI .plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws

3.

Go to /Library/Internet Plug-Ins/ and delete the JavaAppletPlugin.plugin bundle.

4.

Go to /System/Library/Java/JavaVirtualMachines/ and delete anything whose name starts with jdk1.7.0 or says Java 7 or something similar.

5. now go to terminal and type

java -version

6.it should say something like this

java version "1.6.0_35"

Java(TM) SE Runtime Environment (build 1.6.0_35-b10-428-11M4508)

Java HotSpot(TM) 64-Bit Server VM (build 20.10-b01-428, mixed mode)

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Answer 10

Sep 23, 2013 11:17 PM in response to Minionsman

Hi. I am currently working on 10.8.4 OSX. I had accidentally installed jdk1.7, downloaded and installed it from oracle site, and now have to downgrade it. I have followed the same steps as mentioned above. After executing the commands, there are no files to delete, as mentioned in point 3 and 4. And the version still remains the same

java version "1.7.0_25"

Java(TM) SE Runtime Environment (build 1.7.0_25-b15)

Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

Can someone please help me out. ?

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