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Java version 7 (for web apps)


The USGS Global Visualization Viewer requires Java 7 or higher. In my Funtoo box I have:

java -version

java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode

Isn't this already version 7?  How do I get past this obstacle?  I currently use Firefox which features (the plugin) IcedTea-Web ver. 1.3.2.  I have also been through http://www.funtoo.org/Funtoo_Linux_Web_Browsers#Oracle_Java_Runtime_Environment to ensure it was not a "Security" misconfiguration.

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None of the above helped me further. Searching more for available packages, showed icedtea-web-1.4.2. Emerging it like

USE="jamvm javascript" emerge -av icedtea-web

hinted, among others, a magic message after installation completion saying The icedtea browser plugin (NPPlugin) can be enabled using eselect java-nsplugin. Listing options and current setting revealed the "problem"

eselect java-nsplugin list
Available 32-bit Java browser plugins
Available 64-bit Java browser plugins
  [1]   icedtea-7
  [2]   icedtea-bin-6  current
  [3]   icedtea-web@icedtea-7
  [4]   icedtea-web@icedtea-bin-6
  [5]   oracle-jre-bin-1.7

Setting it to "7", like

eselect java-nsplugin set 64bit 1

fixed it and http://glovis.usgs.gov/ runs fine.  I don't know, of course, if installing icedtea-web-1.4.2 was necessary at all.

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I am able to run the USGS Global Visualization Viewer in Chromium. I set up Java and Chromium as described on the wiki page you linked to.


Make sure use set the "nsplugin" USE variable when you emerged oracle-jvm/jdk.


I had to perform one extra trick in Chromium to get it to work, because when I went to the USGS site, it displayed the Java logo but underneath said "Java not allowed."


To fix this, I went to the page "chrome://plugins" and then checked "Always allowed" checkbox next to:


Java™ Version: 10.45.2

Next Generation Java Plug-in 10.45.2 for Mozilla browsers
Then I reloaded the page and the Java applet loaded automatically :)
So, to review:
1) ensure "nsplugin" is In USE.
2) It's working in Chromium.
I do not have FireFox emerged on this machine to test.

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