Please note that no change is required in the WebNMS code to take the effect of DST changes.
However, the jre bundled with WebNMS need to be updated to one of the latest versions 1.3.1_18, 1.4.2_13, or 5.0_u9 in order to update the DST rules. The Java Runtime Environment (JRE) stores rules about DST observance all around the globe. Older JREs will have outdated rules. As a result, applications running on an older JRE may report incorrect time from March 11, 2007 through April 2, 2007 and from October 29, 2007 through November 4, 2007.
If you have the latest update release of the Java platform 5.0, 1.4.2 and 1.3.1, you already have the current DST rules for the United States and Canada. Time zone data that adheres to the new DST rules was introduced in the following update releases of the Java platform:
* 1.3.1_18 * 1.4.2_13 * 5.0_u9
If you are concerned about application failures that may result from the DST changes, you should update your Java Runtime Environment to one of the above update releases (or later).
If for any reason you cannot update your Java platform to one of the update releases listed above, a tool has been provided to modify the time zone data within your existing JDK or JRE software. The TZupater Tool supports JDK/JRE versions 1.4 or later.
If the JRE version is less than what SUN Says (in your case, it is) kindly run the TZ Updater tool. Or if feasible you can also use the higher version of JRE (in this case > 1.5_update9). We do not foresee any issues in upgrading to the minor versions. Kindly get back to us for further clarification in this regard.
Regards Venkatramanan [NMS-Support]
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