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When viewing an Applet, why does Safari for Windows display "Java is Unavailable or Not Installed" when Java is installed and available? [closed]
Asked Answered
Solved windowssafariappletjava
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When using Safari on Windows 7 to load any page containing any Java applet, the following alert appears:

"Java is Unavailable or Not Installed. Do you want to go to a page where you can download java?"

This message is incorrect. These are developer machines with one or more instances of the Java JRE / JDK installed, including 1.7.x. Many alerts are accompanied by messages referencing a non-existent file path, similar to:

"The Java Runtime Environment cannot be loaded from <C:\PROGRA~2\Oracle\JAVAFX~1.1RU\bin\server\jvm.dll>”

The following attempts to repair the situation have all failed:

  • Uninstalling and re-installing various Java versions.
  • Updating to the latest Java version.
  • Changing security settings in Safari.
  • Going to http://www.java.com/en/download/help/testvm.xml detects an obtuse version that is not even installed (Java 2 Runtime Environment, SE v1.4.2_19 ?!?!)

Searching the internet reveals many users with similar problems, but no answers.

How can this be resolved?

Unselfish answered 27/6, 2012 at 22:18 Comment(0)
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While many complaints about this problem exist online, a Google search against "Safari Windows jvm.dll JAVAFX" finds this obscure thread on the Apple Forums.

Summarized, the problem is when Safari checks the Windows Registry for a particular value, it uses the first value it finds instead of the correct value.

Steps to repair the issue:

  1. Close all Safari windows.
  2. Run regedit.exe
  3. Backup your Windows registry (right-click the root Computer and select export).
  4. Go to
    • 32-bit Windows: HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Plug-in\
    • 64-bit Windows: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in\
  5. Examine each entry; there will probably be more than one.
    • Some entries reference proper JREs, while some may reference JavaFX or something else.
    • The JavaFX one may have been installed by Java 7.
    • It is likely Safari is selecting the bottom-most sorted entry; check whether the file path reference for that entry is invalid or nonexistent.
  6. select the bad entry under ..\Java Plug-in\, cross your fingers, and delete it.
  7. close regedit
  8. re-open Safari and browse to a page with an applet. Give it a minute.
  9. At this point, you should be successful. If it continues to fail, check other registry entries under the ..\Java Plug-in\ or parent subfolder ..\JavaSoft\ for invalid file paths. If you recently upgraded, a prior installation may have been invalidated, but the registry entries might not have been removed, and might have to be excised manually.

NOTE: Regarding step 4, your data may be under a different location; check the comments below for the experiences of other users who have resolved this issue in a similar fashion. Please post any alternate Windows Registry paths below as a comment.

Appreciation goes to user Olivier2011 (Olivier Lefevre) of the Apple Support Community (see first link in this answer) for following up his own question with his solution. Oliver's historical record of the incident from MarkMail.

Unselfish answered 27/6, 2012 at 22:18 Comment(3)
First, this worked for me so thanks! But on my 64bit Windows 7 installation the registry key was not located in the referenced path, it was instead located here: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in – Keating
It may be different on a per-machine basis. – Unselfish
i didn't find any registry with \java plug-in ? – Papain
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2

Tried above but didn't work.

deleted java related stuff in C:\Program Files (x86)\Safari\Plugins - .jar and dll

Working now.

Dorpat answered 17/3, 2013 at 5:13 Comment(2)
Why was this answer downvoted? My Safari-Java did not work after deleting the Registry Keys; I had to delete this two files, too. Thank you, cheongi! – Cesaro
Comment from an anonymous user, which I accidentally review: "Finally solved! after so long and so many futile attempts,reading this post! For me the problem was not the reggistry values, but the two java plugin pre-installed with safari, in C/Program Files/Safari/Plugin, deleted those problem solved.Thanks again, this is the only discussion around all web where there is solution!" – Kerr
C
1

This is a problem with "java online install".

To solve:

  1. Uninstall all JavaFX and JRE in your machine.
  2. Download "java offline install" (~=20MB).
  3. Copy "java offline install" to Desktop.
  4. Close all Safari windows, including the download window.
  5. Install java.
Chopfallen answered 26/7, 2012 at 4:41 Comment(1)
The trick is that you shouldn't need to uninstall all Java installations to handle this problem. The issue is with a poorly read registry key. – Unselfish
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Actually the combination of the top answer, the explanation at: https://discussions.apple.com/thread/3192281?start=0&tstart=0 and marcus pope's windows 7 location worked for me.
That is:
I have windows 7.
When trying to run a java applet (geogebra) I got the error message that Safari

could not load C:\PROGRA~1\Oracle\JAVAFX~1.0\bin\server\jvm.dll

since the path does not exist on my machine. This is short for: C:\Programme\Oracle\JavaFX Runtime 1.0\etc ...

Steps:

  1. I shut down Safari.
  2. I opened my registry and went to: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in.
  3. There I found 2 folders (others have found more). The highest one was 10.5.1 and there I found a reference to the path C:\Programme\Oracle\JavaFX Runtime 1.0\etc.
  4. I backed up my registry and then deleted this folder.
  5. I restarted Safari and all is well.
Heraldic answered 9/8, 2012 at 15:42 Comment(0)
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You guys may want to look at the code that launches the applet, as it can specify which java version to run the applet in. There is a code that can be specified that says use the latest available. You also have the option to uninstall your java and resinstall it with a earlier version. Some broswers however will force you to use the latest, as there are some security risks with older versions.

Some reference links that might be of help:

Riddle answered 22/2, 2013 at 17:34 Comment(2)
You shouldn't need to uninstall Java installations to handle this problem. The issue is with a poorly read registry key. This is a client-side problem with Safari; your answer refers to reconfiguring the server-side which hosts the applet, which is not an option. – Unselfish
@JoshDM, thanks I must of made some bad assumptions when writing my reply :) I read through the other posts and see what you are talking about. I'll leave my response as a reference, even though it doesn't directly apply to the stated question... – Riddle
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I had similar issues with Java after installing Java 7 update 15.

I tried all the above troubleshooting methods, but they all failed (I did not have plugins referred to by the key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in.).

What did work using Safari 5.1.7 was downloading an earlier version of Java (Java 7 update 11) from Oracle directly (the same version I used during the Safari 5.1.7 shelf life, when Safari 6 was Mac only).

The steps are:

  1. Uninstall Java from machine.
  2. Download "java offline install" (Java 7 update 11) (~=30MB).
  3. Copy "java offline install" to Desktop.
  4. Close all Safari windows, including the download window.
  5. Install Java.
Gyrocompass answered 5/3, 2013 at 16:3 Comment(1)
Java Download: oracle.com/technetwork/java/javase/downloads/… – Eicher
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I tried the above methods, and the post by 'Luds' worked.

I did have a plugin referred to by the key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in (for Java 7 update 17) but after I uninstalled JAVA 7 Update 17 from the windows control panel, it removed this entry.

I tried Java 7 Update 17, 15, 13 with no luck.

What worked for Safari 5.1.7 was downloading an earlier version of Java (Java 7 update 11) from Oracle directly like the poster 'Luds' mentioned.

The steps are:

  1. Uninstall current Java from machine.
  2. Download jre-7u11-windows-x64.exe (Java 7 update 11) (~=30MB) from: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jre-7u11-oth-JPR
  3. Copy the flavor of installer you need to Desktop.
  4. Close all open Safari windows, including the download window.
  5. Install Java SE Runtime Environment 7u11 (Java 7 update 11).
Nonnah answered 7/3, 2013 at 18:8 Comment(0)

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