The Java SE 6 run-time that was tagged along with previous versions of OS X and is available on
demand for Lion users might be the last version that Apple will officially support in OS X. But this does
not herald the end of the road for OS X as Oracle; Java's parent company has taken up the reins for its
development and recently unveiled the first version of the upcoming Java SE 7 run-time for OS X.
In order to install the Java 7 development kit for OS X, the installer package must be downloaded
from the Oracle Web site and executed. The installer will verify whether the user’s system meets the
requirements i.e. whether it is running on the latest OS X 10.7 or previous versions. Thereafter the Java 7
development kit shall be put into the Java Virtual Machines directory along-side any versions of Java SE
6 that has been previously installed. The installing device before quitting makes sure that run times in the
directory are properly useable.
After the Java run-time has been installed, users must make sure that it is working properly on their
respective systems. To do this, users can click on the utilities or the applications section of the setup file
and click on the option for preferences utility. In the general section of this utility, users can check whether
the Java SE 7 run time has been enabled. Users can personally enable the run-time’s either by dragging
it to the top of the list and keeping all run times enabled, or by un-checking all the run times except the
Java SE 7 run-time. Reorganizing the list is the best option for users requiring the use of Web applets or
Web Start Applications since it allows the plug-in process to access compatible run times.
To determine whether the installed version is of the latest make, the Terminal application in the Utilities
folder must be made to run the following command: 'java –version’
When this command is run, users will able to see an output that states the installed version of the Java
run time is ‘220.127.116.11.4’ alongside some additional information. Users by following this can ensure that the
latest Java run time has been installed on their system and can use it further for running Java applications
or for developing any java related application. But one thing must be kept in mind that these settings
depends on individual usage so users must ensure that Java 7 is enabled to be the preferred run time for
each user on the system where it is installed.
If a user wishes to remove or uninstall the Java 7 run time installed on their system, they can temporarily
remove the application or permanently remove it from the system.
To deactivate the run time, users should open Preferences application of Java and uncheck the run time
in the General section, or reposition the list so that another run time is placed ahead of it. Additionally if
a user wishes to uninstall completely the Java 7 run time, then they must visit the HD Library hosted by
Macintosh or Java Virtual Machines directory and delete a file called ‘1.7.0.jdk.’
The updated version of OS X spells good news for Java developers and for those end-users who run
Java related codes on Macintosh systems. However, some other basic requirements do not make it a
very handy run-time to use since barring Lion only versions of OS X, it is incompatible with other versions.
The system requirements may alter in the future to enable versions like Snow Leopard to function, but as
of now tech-support for previous non-Lion versions of OS X are not available across stores.
Apart from being a Lion only run-time, it is meant only to be an interface for creating Java applications.
Therefore, even though users can use it to evaluate Java applications, the logistics including plug-ins
required to launch Java applets from Web browsers are also missing
About The Author: Kelly is a self-employed designer, illustrator & blogger. She loves writing, along with
travelling. Blogging is her passion. These days she is working on Local rank tracking. Recently she did an
article on Java applications.