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Users apply various patches to the existing Carbon server to enhance the available features or to fix possible bugs that may rise on the Carbon application.  ApplAs a result, applying patches thereby is an easy approach to use when existing executable JAR files need to be changed on the Carbon server.

To apply a kernel patch:

1. Insert the required patches to the following directory:

   Code Block$PRODUCT_HOME

   respective <PRODUCT_HOME>/repository/components/patches directory:

   Example:

   Code Block$ESB_HOME

   For example: <ESB_HOME>/repository/components/patches

2. Run the patch.

   code

   
   

   wso2server.sh -DapplyPatches

   When running this patch the following is the sequence of actions that take place:

   • A backup folder named patch0000 gets created inside
   the $
   • the <PRODUCT_
   HOME
   • HOME>/repository/components/patches directory containing the original content of the
   $
   • <PRODUCT_
   HOME
   • HOME>/repository/components/plugins folder. This step is executed  as a precautionary measure so that if something goes wrong it is possible to revert to the previous state. 
     
     
   • The content of the patches directory will incrementally (e.g., patch0001, patch0002 etc.) get copied to the plugins directory.
     This process is only supported for components
   which
   • that have already existing JAR files in the plug-in directory.