How to configure Chrome s Java plugin so it uses an existing JDK in the machine

Question

When installing JDK in my machines  Windows nbsp 7   I do the following    install latest 1 7 JDK with the Oracle installer  just the JDK  no JRE  copy the install folder  to the place I really want  remove samples  etc  uninstall Java  set  JAVA HOME   add  JAVA HOME  bin to  Path    Then I synchronise that folder in all my machines so I keep it updated  with unlimited cryptography stuff  jssecacerts  java policy  endorsed libraries  etc    BUT this has one big caveat  when Chrome needs to use load a page that uses Java  it thinks Java is not installed and wants to install it  I don t want to install it as it would mess with my  hand-installed  JDK   So is there a way to configure Chrome so it uses the JDK in my disk  I have both JDK 32-bit and JDK 64-bit  so that is not a problem  I guess I would need to use the 32-bit one with Chrome    I found a question in the Chrome project  How do I have the Chrome Java plugin reference an existing JDK without reinstalling Java   but no replies so far     UPDATE  for Ubuntu  see Kalyan s answer  UPDATE  I still continue to use this approach successfully  last time with 1 7 0 21 on win7  UPDATE for 1 7 45  the path in the windows registry now is  HKEY LOCAL MACHINE SOFTWARE MozillaPlugins

User · Answer

I looked around for a solution to this for a while  It appears that the JDK doesn t have the Mozilla plugins  which is what Chrome uses  in it s installation  It is only in the JRE installation  There are a couple of DLLs that make up the plugin and they all start with np

User · Answer

On Windows 7 64-bit  I added the registry entry using the following script    echo off reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin  reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  Description   t REG SZ  d  Oracle Next Generation Java Plug-In  reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  GeckoVersion   t REG SZ  d  1 9  reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  Path   t REG SZ  d  C  Oracle jdev11123 jdk160 24 jre bin new plugin npjp2 dll  reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  ProductName   t REG SZ  d  Oracle Java Plug-In  reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  Vendor   t REG SZ  d  Oracle Corp   reg add  HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   v  Version   t REG SZ  d  10 3 1    Note that you will have to change the Path

User · Answer

On Ubuntu  You can follow these steps to resolve the issue    Create a directory named plugins inside  HOME  mozilla  if it doesn t exist already Create a symlink to libnpjp2 so inside this directory using this command   ln -s  JAVA HOME jre lib i386 libnpjp2 so  MOZILLA HOME plugins   -or-  ln -s  JAVA HOME jre lib amd64 libnpjp2 so  MOZILLA HOME plugins   depending on whether you re using a 32 or 64 bit JVM installation  Moreover   JAVA HOME is the location of your JVM installation    More detailed instructions can be found here

User · Answer

Starting with Version 42  released April 14  2015  Chrome blocks all NPAPI plugins  including Java   Until September 2015 there will be a way around this  by going to chrome   flags  enable-npapi and clicking on Enable   After that  you will have to use the IE tab extension to run the Direct-X version of the Java plugin

User · Answer

I came across a similar issue but instead of changing the regedit I decided to change the Chrome settings  Try the following steps   In the chrome browser type  chrome   plugins  Click on   Details  top right corner  to expand all the plugin details  Find Java and click on Disable for the path s  that you don t want to be used    You might have to restart the browser to see the changes   This also assumes that the Java that you have enabled is the latest Java   Hope this helps

User · Answer

I m on Windows 7 64 bit and couldn t understand if I can manually enable JRE8 64 bit for Chrome  Turned out that my problem was that Java plugin DLL is 64 bit which wouldn t work in 32 bit Chrome  Therefore you need to install x86 version of JRE  Below are Windows registry settings you need to create  Windows Registry Editor Version 5 00   HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2   Description   Oracle   Next Generation Java    Plug-In   GeckoVersion   1 9   Path   C   Program Files  x86   Java  jre8  bin  plugin2  npjp2 dll   ProductName   Oracle   Java    Plug-In   Vendor   Oracle Corp    Version   1 8 0    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet jpi-version 1 8 0   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 1   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 1 1   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 1 2   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 1 3   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 2   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 2 1   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 3   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 3 1   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 4   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 4 1   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 4 2   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 5   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 6   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 7   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-applet version 1 8   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-vm   Description   Java    Virtual Machine    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin version 11 0 2 MimeTypes application x-java-vm-npruntime   Description   Java    Applet    HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   Description   Oracle   Next Generation Java    Plug-In   GeckoVersion   1 9   ProductName   Oracle   Java    Plug-In   Vendor   Oracle Corp    Version   160 29   Path   C   Program Files  Java  jre8  bin  plugin2  npjp2 dll

User · Answer

I use Windows 7 Professional 64-bit and have both the 32-bit and 64-bit Java 7u9 jre s installed   Chrome refused to work until I deleted the following registry key   HKEY LOCAL MACHINE Software MozillaPlugins  java com DTPlugin version 10 9 2   Then I refreshed Chrome and the Applet loaded with a Warning that the plugin was out of date   I seleted  Run this time  and everything worked as expected     There are two bugs related to this  7118859  amp  7133818

User · Answer

Apparently  Chrome addresses a key in Windows registry when it looks for a Java Environment  Since the plugin installs the JRE  this key is set to a JRE path and therefore needs to be edited if you want Chrome to work with the JDK    Run the plugin installer anyways  Start -  Run  Winkey R  and then type in regedit to edit the registry  Find HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin  Export it as a reg file to say  your desktop  right-click and select Export   Uninstall the JRE  Control Panel -  Add or Remove Programs   This should delete the key above  explaining the need to export it in the first place  Open the reg file exported to your desktop with a text editor  such as Notepad     Edit  Path  so that it matches the corresponding dll inside your JDK installation   REGEDIT 4   HKEY LOCAL MACHINE SOFTWARE Wow6432Node MozillaPlugins  java com JavaPlugin   Description   Oracle   Next Generation Java    Plug-In   GeckoVersion   1 9    Path   C  Program Files  x86  Java jdk1 6 0 29 jre bin new plugin npjp2 dll    ProductName   Oracle   Java    Plug-In   Vendor   Oracle Corp    Version   160 29   Save file  Double click modified reg file to add keys to your registry    The REGEDIT 4 prefix at the top of the file might only be required for Windows 7 64-bit

[java] How to configure Chrome's Java plugin so it uses an existing JDK in the machine

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