Update ColdFusion JVM

Occasionally you may be required, for performance or security reasons, to update your ColdFusion JVM. This is a relatively simple process but as this can cause the ColdFusion application server service to stop operating, please follow these steps accordingly. 

  • Confirm your ColdFusion Version and Java JVM version
  • Confirm whether you are running 64 bit or 32 bit ColdFusion. 
  • Download the appropriate (Windows x86 for 32bit, Windows x64 for 64 bit) version of the latest ColdFusion supported Java JDK kit: 1.6.0_38
  • Install this JDK. If prompted to restart your server, do so.
  • Navigate to the Java install folder and browse to the JRE sub-directory. If you installed with default settings this path is: C:\Program Files\Java\jdk1.6.0_30\jre
  • Open your CF administration site and go to Server Settings > Java and JVM
  • Paste in the path to the new JRE directory and before saving, replace the back-slashes with forward slashes (ex: C:/Program Files/Java/jdk1.6.0_30/jre )
  • Submit these changes
  • Restart the ColdFusion Application Server service using the services snap in. 
  • If this service fails to restart, you can recover your installation by doing the following:
    • Navigate to your ColdFusion installation directory (ex: C:\ColdFusion9) and open the runtime and then bin subdirectories (C:\Coldfusion9\runtime\bin)
    • Locate a file called jvm.config and change this name to preserve the file
    • Locate the file jvm.bak and rename it to jvm.config
    • Restart your ColdFusion Application Server service

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