CWWIC0306W An instance initializer is not allowed in custom snippets.
Explanation
Custom snippets cannot contain instance initializers.
User response
Remove the instance initializer from the custom snippet and run the migration again, or set the "Warn in case of Java parsing errors" flag, and modify the resulting snippets in the Business Process Execution Language (BPEL) components or map components so that they no longer use instance initializers.