NIAGARA UPDATE – Patches available for Java 7 Update 25 Issue


UPDATE – Patches available for Java 7 Update 25 Issue.

Login to Niagara Central to access updated files

Last week Oracle released Java 7 update 25 which causes the Niagara web applet to fail in all released versions of Niagara in all browsers. This issue may affect your customers who accept the default automatic Java upgrade.

Tridium has updated files to address this issue. They are available through Niagara Central: Login is required to access Niagara Central. We strongly encourage you to download and apply to your affected systems.

Update Releases (AX-3.5u4, AX-3.6u4 and AX-3.7u1)

We are incorporating the updated files into the June 2013 Update Releases (AX-3.5u4, AX-3.6u4 and AX-3.7u1) and will issue the updated images in the coming days.


When attempting to connect to a Niagara station through a web browser using a Wb WebProfile, the web browser hangs when attempting to start the Java applet.


Updated versions of wbapplet.jar, baja.jar, fox.jar and web.jar have been created that function properly with Java 1.7.0_25. Users will need to update the wbapplet.jar file on their Niagara stations for versions 3.6 and earlier along with baja.jar and fox.jar.

In Niagara 3.7, wbapplet.jar is embedded in the web module (web.jar) which can be updated along withbaja.jar and fox.jar using the “Software Manager.”

Complete updating instructions can be found on Niagara Central at

If you have any questions, please contact Technical Support ( or Sales Support (

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