[SOLVED] Java Not Detected...

tb75252 · 03-20-2015, 01:12 PM

I am using Slackware 14.1 (32-bit) on an old PC (15 years!!) that has a Pentium III 1100 MHz CPU and 1.5 GB of RAM.

I just installed the latest 32-bit JAVA JDK (v. 8u40-i586) offered by SlackBuilds.com, but when I go to https://www.java.com/verify with Firefox 31.5.0 it tells me that no Java is detected. (Yes, I did re-start my PC after installing Java!)

The Plugins Manager in Firefox also does not show that Java is installed.

Could it be that my PC is too old for v. 8u40 and that I need to install an older version?

Any other suggestions?

smallpond · 03-20-2015, 01:22 PM

i586 should be fine on P III. The website you are looking at tests the java browser plugin, which is not the same thing as the installed jdk. Put about

lugins in the browser address bar to check. I don't have a 32-bit system handy, but this may help:

http://www.oracle.com/technetwork/ja...ux-136395.html

veerain · 03-20-2015, 01:28 PM

In the above post there is type error. It should be correct to say put

Code:

about:plugins

in address bar of Firefox Browser and see what plugins are installed.

phenixia2003 · 03-20-2015, 01:32 PM

Hello,

Quote:

Originally Posted by tb75252

I am using Slackware 14.1 (32-bit) on an old PC (15 years!!) that has a Pentium III 1100 MHz CPU and 1.5 GB of RAM.

I just installed the latest 32-bit JAVA JDK (v. 8u40-i586) offered by SlackBuilds.com, but when I go to https://www.java.com/verify with Firefox 31.5.0 it tells me that no Java is detected. (Yes, I did re-start my PC after installing Java!)

The Plugins Manager in Firefox also does not show that Java is installed.

Could it be that my PC is too old for v. 8u40 and that I need to install an older version?

Any other suggestions?

As stated on slackbuild.org jdk's page , the java plugin is not activated by default. To activate it, you have to run the slackbuild as below :

Code:

$ EXPLOIT_ME=YES ./jdk.SlackBuild

--
SeB

tb75252 · 03-20-2015, 03:31 PM

Quote:

Originally Posted by phenixia2003

Hello,

As stated on slackbuild.org jdk's page , the java plugin is not activated by default. To activate it, you have to run the slackbuild as below :

Code:

$ EXPLOIT_ME=YES ./jdk.SlackBuild

--
SeB

Thank you. Your suggestion works!
But where exactly do you see how to run the slackbuild for JDK? I've looked and looked on the SlackBuilds' page for JDK but I cannot find it...

1337_powerslacker · 03-22-2015, 08:12 PM

Quote:

Originally Posted by tb75252

Thank you. Your suggestion works!
But where exactly do you see how to run the slackbuild for JDK? I've looked and looked on the SlackBuilds' page for JDK but I cannot find it...

The command to run the SlackBuild is exactly as it's shown in your quoting of the previous poster, but without the EXPLOIT_ME variable, if you so desire.

In other words, if you want to run the SlackBuild, cd into the directory containing the SlackBuild and issue the following command:

Code:

./jdk.SlackBuild

The './' in front of the command tells the shell that the command to be run is in the current directory, and to skip the root/user $PATH.

Hope this helps.

Happy Slacking!

tb75252 · 03-22-2015, 08:34 PM

Quote:

Originally Posted by mattallmill

The command to run the SlackBuild is exactly as it's shown in your quoting of the previous poster, but without the EXPLOIT_ME variable, if you so desire.

In other words, if you want to run the SlackBuild, cd into the directory containing the SlackBuild and issue the following command:

Code:

./jdk.SlackBuild

The './' in front of the command tells the shell that the command to be run is in the current directory, and to skip the root/user $PATH.

Hope this helps.

Happy Slacking!

Yes, I had initially done that but then Firefox would not detect that JDK was installed. Only after appending

Code:

EXPLOIT_ME=YES

to the

Code:

./jdk.SlackBuild

command did JDK show up in the Plugins section of Firefox.

I just wanted phenixia2003 to show me where it says that

Code:

EXPLOIT_ME=YES

must be appended to the command.

Richard Cranium · 03-22-2015, 08:56 PM

You have to read the slackbuild script itself.

You may and can argue that the README should mention it also; I think that the README should mention it, myself.

tb75252 · 03-22-2015, 09:41 PM

Quote:

Originally Posted by Richard Cranium

You have to read the slackbuild script itself.

You may and can argue that the README should mention it also; I think that the README should mention it, myself.

I agree! I have contacted the author of the SlackBuild, David Somero.

1337_powerslacker · 03-23-2015, 07:31 AM

Quote:

Originally Posted by tb75252

Yes, I had initially done that but then Firefox would not detect that JDK was installed. Only after appending

Code:

EXPLOIT_ME=YES

to the

Code:

./jdk.SlackBuild

command did JDK show up in the Plugins section of Firefox.

I just wanted phenixia2003 to show me where it says that

Code:

EXPLOIT_ME=YES

must be appended to the command.

My apologies. I had thought that you didn't know how to run the SlackBuild itself, not that you wanted to have it build the jdk plugin as well.

JackHair · 03-23-2015, 10:51 AM

The Java plugin is called "libnpjp2.so" with JDK installed you can find it here: /usr/lib64/java/jre/lib/amd64/libnpjp2.so. It's linked to /usr/lib64/mozilla/plugins. Of course on a 32-bit system it's /usr/lib/.

tb75252 · 03-23-2015, 12:50 PM

Quote:

Originally Posted by JackHair

The Java plugin is called "libnpjp2.so" with JDK installed you can find it here: /usr/lib64/java/jre/lib/amd64/libnpjp2.so. It's linked to /usr/lib64/mozilla/plugins. Of course on a 32-bit system it's /usr/lib/.

I was able to link JDK and Firefox by issuing the command CODE]EXPLOIT_ME=YES ./jdk.SlackBuild[/CODE] as suggested by penixia2003. So everything is good.