The certificate store file cacerts is overwritten during upgrade

When upgrading from ColdFusion MX†6.0 to 6.1 or 6.1 to 6.1 Updater†be aware that the cacert file will be overwritten.† This may be important to you if you rely on the CF internet protocol tags to connect to SSL enabled websites, including the CFHTTP and CFLDAP tags.

The default set of certificates stored in cacerts was increased between 6.0 and 6.1, but one person has confirmed that at least one default certificate was lost during that change.† If you performed custom imports of certificates into the cacerts file with the keytool utility, then both the upgrade and the update will overwrite the cacerts file and your custom certificate imports will be lost. You'll have to run the keytool utility again†to re-import those custom certificates.†

See also my blog on using the keytool utility.

Zeroed-out file: The Runtime service is not available

If you find an error regarding "The Runtime service is not available" in ColdFusion MX 6.1 or 6.1 Updater 1 when ColdFusion server will not start, I recommend that you check the logs against the errors listed below. If you find a match, check the $CF_HOME/lib/ file. If the file is empty, you should copy in a new file from another server or from a back up copy, and then restart the ColdFusion service. This is CFMX bug 57260. The following logs show entries that resulted from this problem: