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Blackboard Support > Technical Requirements > Java Information

Java Information

Blackboard requires Sun's Java (JRE) 1.4.2_07 or higher. With the current version of Blackboard 7 at BC, it's recommended that we use Jave version between 1.5.0_05 and 1.5.0_10 to ensure all features function properly.

Java, version 1.6.0_01, has had reports of problems associated with its use of various Blackboard applets. If you have version 1.6.0_01 installed, it is recommended that you revert to 1.6.0 for now. If you still experience problems, you should uninstall all versions of Java and revert to JRE 1.5.0,

Java Downloads


JRE 1.4.2

JRE 1.5 Build 5

JRE 1.5 Build 7

JRE 1.6


JRE 1.4.2 (OSX 10.3.9)
JRE 1.4.2_09

JRE 1.5 (OSX 1.4.2+)
JRE 1.5.0_4 (PPC)

JRE 1.5.0_4 (Intel Macs)

Update Java Plug-in


Windows Users

The Blackboard Collaboration tools (Virtual Classroom, Lightweight Chat) require Java Plug-in r(J2SE 1.4.2_07 or later version) in order to function properly.
Note:  Any prior version of the Java Plug-in must be removed prior to installing new Java Plug-in in order for the Collaboration tools to function properly.

Check Java Plug-in on your computer (Windows XP)

1. Go to Start Menu ->Control Panel
2. In the list of programs, if you see "Java Plug-in” or "Java" icon you know you have Java Plug-in installed.

3. Double click on the Java Plug-in icon or name in the list to open it.
4. Click on About Tab(Java version 1.4) or About button (Java 1.5) to check the version. 

The picture at the left shows the current version of Java Plug-in is 1.4.1_03

The picture at the left shows the current version of Java Plug-in is 1.5.0_10.

Uninstall the Current Java Plug-in

The "Uninstalling" procedure is primarily for those who have used the Collaboration tools in previous version of Blackboard. If you have never used the Collaboration tools in Blackboard, the "Uninstalling" procedure may not be necessary.  However, you still may need to complete the procedure if your computer came with the older Java Plug-in pre-installed or you installed it for use with another application. Follow the steps below:

1.  Close all applications.
2.  Go to Start Menu ->Control Panel -> Add/Remove Programs
3.  In the list of programs, choose "Java 2 Runtime Environment" and follow the on screen prompts to remove the program.
4.  If you have multiple installations of the "Java 2 Runtime Environment", you will need to follow the above steps for each version that is installed.
5.  Once you have completed the steps above, proceed to the steps below under "Installing new Java Plug-in".

Installing New Java Plug-in (JRE 1.5.0_10)

Note: You may follow the procedure for "Manual Installation" described below by accessing a collaboration session.

Manual installation:  The installer program may be downloaded manually from the page that appears when a user joins a Collaboration Session,
     a.  Click on “Click here” to download the Java Plug-in to proceed to the next screen, follow the instruction on the screen.
     b.  Click “Get Java Plug-in for Windows (8 MB)

   c.   When the downloading screen appears, click on Open to continue.
     d.   Follow the on screen instruction to complete the installation.

Note: After proper removal of the old Java Plug-in(s) and installation of the new Java Plug-in is completed, the Collaboration tools should open and run normally

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