Downgrade my java version

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

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(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.

Posted on Nov 16, 2012 12:00 PM

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(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.

Well all you do is delete a few files 😀

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

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

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

6.it should say something like this

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)

Posted on Jul 8, 2013 4:41 PM

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

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

1. Uninstall Oracle Java 7 by deleting the plug-in file. From a Terminal window enter:% sudo rm -rf /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
2. 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

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.pl ugin /Library/Internet Plug-Ins/JavaAppletPlugin.plugin

Does not exist? No such file or directory.

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

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

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)

In the Terminal enter: java -version

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)

I don’t know if these are any different:

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

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(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.

Well all you do is delete a few files 😀

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

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

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

6.it should say something like this

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)

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(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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How do I downgrade Java version on Windows?

Open the Windows Control Panel and choose Program and Features (Windows 7). Locate the installed Java update and click uninstall to remove. Once the removal process completed, you may need to restart your computer.

How do I change Java version on Windows?

How to Change Java Versions in Windows (Updated for Java 17)

1. Step 1: Installing Multiple Java Versions. Installing multiple Java versions in parallel is incredibly easy in Windows.
2. Step 2: Define Java Environment Variables.
3. Step 3: Install the Scripts to Change the Java Version.
4. Step 4: Add the Script Directory to the Path.

Can I install an older version of Java?

Java’s developer, Oracle, recommends against using earlier versions because they lack the latest security updates. However, if you absolutely must have access to a particular website that requires an earlier version, you can download the software directly from Oracle’s website.

How do I install two versions of Java on Windows?

Running Existing Java Application

1. Open Command Prompt by pressing Start Key + R. Type cmd and press Enter.
2. Type “java -version” and press Enter.
3. You will see which version of Java is currently on the path. It will start with 1. X.X, so if it is 1.7. 0_05 it is Java 7.

Can I have two versions of Java on my computer?

It is very possible to run multiple versions of Java on the same machine so you can run your existing applications and Ignition at the same time.

Is it possible to downgrade Java version?

(and Java is already not really reputable, security-wise) You cannot “downgrade” a certain version of Java. You install different versions of Java you need, and set your project to be built with that specific version. On a system, there can be several Java versions installed together.

Why do I need to revert to an older version of Java?

Users of Banner and AppWorx job scheduling may need to revert to an older version of Java if they’ve installed a new version that’s incompatible with those services. These instructions focus on Java 8. In Windows 7 select the Windows button, then select Control Panel.

How to uninstall Java on Windows 10?

In Windows 10 click in the search box on the bottom left corner of task bar (either cortana or the magnifying glass) and type ” Control Panel ” Click on the icon that appears. 3. In the list of programs, select the undesired version of Java, then click Uninstall.

How do I uninstall or change the default version of Java?

In the list of programs, select the undesired version of Java, then click Uninstall. (If you have multiple versions of Java installed, you may want to uninstall all of them.) Go to Oracle’s Java SE 8 Archive Downloads page and locate the desired version of Java.

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How do I downgrade my Java version on Mac?

How do I uninstall a specific version of Java on a Mac?

How do I uninstall Java on my Mac?

1. Click on the Finder icon located in your dock.
2. Click on the Utilities folder.
3. Double-click on the Terminal icon.
4. In the Terminal window Copy and Paste the commands below: sudo rm -fr /Library/Internet Plug-Ins/JavaAppletPlugin.plugin.

How do I downgrade to JDK 8 on Mac?

[Mac] Downgrade Java 11 -> Java 8

1. Step 1: Install Java 8. http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html.
2. Step 2: Check all installed java version.
3. Step 3: Reload bash_profile.
4. Step 4: Check current Java version.

How do I change default Java version?

How to change Java versions in Windows (updated 2021 for Java 17)

1. Step 1: Installing Multiple Java Versions. …
2. Step 2: Define Java Environment Variables. …
3. Step 3: Install the Scripts to Change the Java Version. …
4. Step 4: Add the Script Directory to the Path.

How do I switch between Java versions?

To switch between installed java versions, use the update-java-alternatives command. … where /path/to/java/version is one of those listed by the previous command (e.g. /usr/lib/jvm/java-7-openjdk-amd64 ).

Can I have 2 versions of Java installed?

It is very possible to run multiple versions of Java on the same machine so you can run your existing applications and Ignition at the same time.

How do I get an older version of Java?

How can I download an older versions of Java? Visit the Java Archive Download Page to get other versions of Java. We recommended installing the latest version of Java from java.com.

Can you download Java for free?

Visit the Java website and download the installer

To install Java, you first need to download the installer program from Oracle. Click the “Free Java Download” button. You are then prompted to read and agree with the end user license agreement.

Should I remove Java from my Mac?

You don’t need to remove it completely. It’s deeply embedded in the system and removing it is no simple task. But if you open Java Preferences. app in Utilities, you can disable the Java Runtime Environment, which is where all the open vulnerabilities are.

Do I need Java on my Mac 2020?

Java is not required and is not preinstalled in OS X. There are 2 sides to Java. The web browser plug-in/extension – this is the BAD form, as it has been nothing but security holes. HOWEVER, for some reason there are a few institutions that require the Java browser plugin to access their web site.

How do I uninstall Java 13 on Mac?

Uninstalling the JDK on macOS

1. Go to /Library/Java/JavaVirtualMachines .
2. Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool: /Library/Java/JavaVirtualMachines/jdk-13. interim.update.patch.jdk.

How do I check my JDK version?

Java Version under Windows Start Menu – Java 7 Update 40 (7u40) and later versions

1. Launch the Windows Start menu.
2. Click on Programs.
3. Find the Java program listing.
4. Click About Java to see the Java version.

How do I remove OpenJDK from my Mac?

Step 1. Select OpenJDK which you need to remove in the list, easily hit Run Analysis button. Step 2. Then, the uninstaller will analysis the target app as fast as in a few seconds later, click the button “Complete Uninstall” when all the related folders and flies appeared in the list.

From the author

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