JAVA_HOME environment variable not set Validator.nu HTML Parser

I am trying to install a local version of the Validator.nu server and it keeps failing on trying to build the HTML Parser.

It says it can't find the JAVA_HOME variable which I have set in my .bashrc file and shows correctly when I type "echo $JAVA_HOME" at the prompt

Ideas appreciated thanks

Error output

"hg" pull --update -R build https://bitbucket.org/validator/build/
Not trusting file build/.hg/hgrc from untrusted user dave, group dave
Not trusting file /ho开发者_运维问答me/dave/src/checker/build/.hg/hgrc from untrusted user dave, group dave
warning: bitbucket.org certificate with fingerprint 81:2b:08:90:dc:d3:71:ee:e0:7c:b4:75:ce:9b:6c:48:94:56:a1:fe not verified (check hostfingerprints or web.cacerts config setting)
pulling from https://bitbucket.org/validator/build/
warning: bitbucket.org certificate with fingerprint 81:2b:08:90:dc:d3:71:ee:e0:7c:b4:75:ce:9b:6c:48:94:56:a1:fe not verified (check hostfingerprints or web.cacerts config setting)
searching for changes
no changes found
Error: The JAVA_HOME environment variable is not set.
Set the JAVA_HOME environment variable to the pathname of the directory where your JDK is installed.

Instead of:

$ sudo python build/build.py all

try:

$ sudo -E python build/build.py all

The sudo command for security reasons resets the environment (so your JAVA_HOME for the python process is wiped out even when it's exported). The "sudo -E" will preserve the environment.

I assume (from tag) you use ubuntu.

list versions of installed javas in your system:

dave@ubuntu:~$ update-java-alternatives --list
java-6-openjdk 1061 /usr/lib/jvm/java-6-openjdk

Note, that if you set JAVA_HOME in ~/.bashrc it will be set only in your terminal sessions. Unless you export it, it will be set only for your current shell process (not subprocesses like mercurial).

add line to your .bashrc:

export JAVA_HOME="/usr/lib/jvm/java-6-openjdk"

open a new terminal and test it:

$JAVA_HOME/bin/java -version && echo java seen by bash
bash -c '$JAVA_HOME/bin/java -version && echo java seen by bash subprocesses'

If you want to set environment for all processes (not only started by hand from terminal), you can:

dave@ubuntu:~$ sudo $EDITOR /etc/environment

After tackling this for the last 4 days I have managed to get the validator.nu server running on my local Ubuntu VM and so I thought I would update this thread in case anyone else runs in to the same issues.

I am still not 100% sure where the original issue with the JAVA_HOME variable was coming from but I suspect (although I am not an expert at this) that it had something to do with the way I was using sudo to run the python build.

I was initially following the instructions on http://about.validator.nu/#src but using

$ sudo python build/build.py all

This was because part of the build needed the correct permissions to work.

This is my step-by-step process which starts from a clean install of Ubuntu 11.

• installed ubuntu 11
• opened the terminal
• sudo /bin/bash <----------- I THINK THIS IS THE CRUCIAL LINE
• apt-get install mercurial
• apt-get install subversion
• apt-get install openjdk-6-jre
• apt-get install openjdk-6-jdk
• export JAVA_HOME=/usr/lib/jvm/java-6-openjdk
• follow rest of http://about.validator.nu/#src instructions

I'm going to need to do it again when I set this up for the internal network for our build scripts so i'll edit this if I've missed out on anything.

Hope this saves another person's headache and lost days!