Grails

Grails is incorrectly picking up JAVA_HOME varaiable

Details

  • Type: Bug Bug
  • Status: Resolved Resolved
  • Priority: Major Major
  • Resolution: Not A Bug
  • Affects Version/s: 2.0 final
  • Fix Version/s: None
  • Component/s: None
  • Labels:
    None
  • Environment:
    Ubuntu 11.10, JDK 1.6 update 31, Grails 2.0.0

Description

See the attached screenshots

My JAVA_HOME variable is pointing to /usr/lib/jvm/java-6-sun

whereas Grails is picking it up as /usr/lib/jvm/java-6-sun/bin/java

Steps to reproduce:

Method 1:

  • Do not install Java via deb packages. Download it manually and move the jdk directoty to /usr/lib/jvm/java-6-sun
  • Use 
    export JAVA_HOME=/usr/lib/jvm/java-6-sun
  • Run "grails". It will complain JAVA_HOME is not set

Method 2:

  • Install Grails via PPA (deb package)
  • Do not install Java via deb packages. Download it manually and move the jdk directoty to /usr/lib/jvm/java-6-sun
  • Now create links using: 
    • sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-6-sun/bin/java 1062
sudo update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/java-6-sun/bin/jar 1062
sudo update-alternatives --install /usr/bin/javadoc javadoc /usr/lib/jvm/java-6-sun/bin/javadoc 1062
sudo update-alternatives --install /usr/bin/javap javap /usr/lib/jvm/java-6-sun/bin/javap 1062
sudo update-alternatives --install /usr/bin/jarsigner jarsigner /usr/lib/jvm/java-6-sun/bin/jarsigner 1062
sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-6-sun/bin/javac 1062
sudo update-alternatives --install /usr/bin/javah javah /usr/lib/jvm/java-6-sun/bin/javah 1062
sudo update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/java-6-sun/bin/javaws 1062
  • Set a GRAILS_HOME variable in /etc/environment. Please note that it picks up only System wide variables.

Activity

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Raviteja added a comment - - edited

I'm not sure of the steps to be followed to submit a pull request on github to contribute to grails code but changing the below line in startGrails will solve it.

Changed from:

JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g')

to:

if [ ! $JAVA_HOME ]; then
        JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g')
fi

or

if [[ -z $JAVA_HOME ]]; then
        JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g')
fi
Show
Raviteja added a comment - - edited I'm not sure of the steps to be followed to submit a pull request on github to contribute to grails code but changing the below line in startGrails will solve it. Changed from: JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g') to: if [ ! $JAVA_HOME ]; then JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g') fi or if [[ -z $JAVA_HOME ]]; then JAVA_HOME=$(update-alternatives --query java | grep Value | sed 's_^Value: __g' | sed 's_/jre/bin/java__g') fi
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Raviteja added a comment -

Pull request: https://github.com/marcoVermeulen/grails-ubuntu/pull/1

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Raviteja added a comment - Pull request: https://github.com/marcoVermeulen/grails-ubuntu/pull/1
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Marco Vermeulen added a comment - - edited

Hi Ravi,

I've had a look at your pull request but don't believe that this is a bug, nor is it necessary to apply this fix. Allow me to explain:

When you use a PPA, you are tying yourself into the strict use of the Debian/Ubuntu package management system. All my PPA packages internally specify the following dependencies (taken from the packages control file):

Depends: openjdk-6-jdk | sun-java6-jdk, ${misc:Depends}

This means that if neither of these two packages are installed, it will try pulling down the first one. In other words, you will get the default OpenJDK 6 from the repos. If for whatever reason you want to use the Sun/Oracle JDKs, they are (like my PPA) also available on Launchpad. Please refer here for instructions for installing sun-java6-jdk:
https://launchpad.net/~ferramroberto/+archive/java

You could even have both installed, then switch between the two using the official method provided by Debain/Ubuntu, update-alternatives. Just as you would to switch between versions of Grails.

Of course, if you don't want to use the update-alternatives command to control grails/java, it is just as easy to install it from the zip files provided on the Grails Download page.

Finally, just to confirm that this is not a bug, I tried installing Grails from the PPA using a fresh install of Ubuntu 11.10, and it worked first time pulling down openjdk-6-jdk as a dependency.

Hope this helps,
Regards,
Marco.

Show
Marco Vermeulen added a comment - - edited Hi Ravi, I've had a look at your pull request but don't believe that this is a bug, nor is it necessary to apply this fix. Allow me to explain: When you use a PPA, you are tying yourself into the strict use of the Debian/Ubuntu package management system. All my PPA packages internally specify the following dependencies (taken from the packages control file): Depends: openjdk-6-jdk | sun-java6-jdk, ${misc:Depends} This means that if neither of these two packages are installed, it will try pulling down the first one. In other words, you will get the default OpenJDK 6 from the repos. If for whatever reason you want to use the Sun/Oracle JDKs, they are (like my PPA) also available on Launchpad. Please refer here for instructions for installing sun-java6-jdk: https://launchpad.net/~ferramroberto/+archive/java You could even have both installed, then switch between the two using the official method provided by Debain/Ubuntu, update-alternatives. Just as you would to switch between versions of Grails. Of course, if you don't want to use the update-alternatives command to control grails/java, it is just as easy to install it from the zip files provided on the Grails Download page. Finally, just to confirm that this is not a bug, I tried installing Grails from the PPA using a fresh install of Ubuntu 11.10, and it worked first time pulling down openjdk-6-jdk as a dependency. Hope this helps, Regards, Marco.
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Raviteja added a comment -

Well in that case this can be considered a documentation issue, right?. Personally, I really got confused as to why Grails was not picking up the proper JAVA_HOME variable even it's set.

Just a note: Oracle will not be officially supporting this PPA and bug fixed versions won't be available quick enough.

Show
Raviteja added a comment - Well in that case this can be considered a documentation issue, right?. Personally, I really got confused as to why Grails was not picking up the proper JAVA_HOME variable even it's set. Just a note: Oracle will not be officially supporting this PPA and bug fixed versions won't be available quick enough.
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Lari Hotari added a comment -

This is not a bug in Grails. It's about the grails ubuntu packages:
https://github.com/marcoVermeulen/grails-ubuntu

Show
Lari Hotari added a comment - This is not a bug in Grails. It's about the grails ubuntu packages: https://github.com/marcoVermeulen/grails-ubuntu

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  • Assignee:
    Unassigned
    Reporter:
    Raviteja
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Dates

  • Created:
    Updated:
    Resolved: