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How to setup ANT & JAVA Home in Ubuntu Linux 64 bit ?

Posted on 2010-11-12
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Last Modified: 2012-05-10
Hi All,

I've successfully installed Java and Ant using apt-get, however when i tried to echo the env. variable, I doesn't give me anything ?

But, i can see some result here:

root@SSV:~# java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03, mixed mode)

root@SSV:~# ant
Buildfile: build.xml does not exist!
Build failed

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is that working configuration or i shall add it into /etc/environment file like the following ?


root@SSV:~# whereis ant
ant: /usr/bin/ant /usr/share/ant /usr/share/man/man1/ant.1.gz[

root@SSV:~# whereis java
java: /usr/bin/java /etc/java /usr/share/java /usr/share/man/man1/java.1.gz
root@SSV:~#

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Any help would be greatly appreciated.

Thanks
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Question by:jjoz
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Assisted Solution

by:stermeau
stermeau earned 167 total points
ID: 34120702
Hi,
I am not sure what you are expecting to see in the env variable.
From your comment, you are trying to build a project but ant cannot find the build.xml file. This has nothing to do with the env variable.
Try to locate the build.xml file and run the ant command from the folder where the file is located.
You can use the following to locate the file:
  sudo updatedb
  sudo locate build.xml
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Assisted Solution

by:msmolyak
msmolyak earned 333 total points
ID: 34120964
Your Ant installation is actually working. This is Ant running and telling you that it has nothing to build. To echo an environment variable use

echo $JAVA_HOME

You need to set ANT_HOME to point to the root of your Ant installation.

export ANT_HOME=/your/path/here

Make sure to add ant/bin directory to your path.

To run Ant use

ant build.xml

where build.xml is the name of the build file. This is actually a default name, so it can be skipped (if the file is named build.xml and is in the current directory).

Follow an Ant tutorial (e.g., http://www.roseindia.net/tutorials/ant/) for further steps.

Michael
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Author Comment

by:jjoz
ID: 34125667
so in this case those two tools i already set and working eventhough they're not listed under the /etc/environment ?
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Accepted Solution

by:
msmolyak earned 333 total points
ID: 34125681
Ant is apparently working since you are getting a response. To make sure create a simple build file (with a single target with an echo task) and run Ant from the directory where the file resides.

Running 'java -version' will tell you whether Java is set up correctly.
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Author Comment

by:jjoz
ID: 34125724
yes both of them seems to be working.

thanks for the clarification man.
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Author Closing Comment

by:jjoz
ID: 34125725
thanks man !
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