philwebb commented on issue #142: Defer creation of encodingToCharsetCache
URL: https://github.com/apache/tomcat/pull/142#issuecomment-470280939
 
 
   I've pushed an update following the discussion on 
https://bz.apache.org/bugzilla/show_bug.cgi?id=63235
   
   @rmaucher 
   
   > If there is a lookup with Charset.forName, then would the cache be used at 
all
   
   Correct. The updated code relies on the [internal 
cache](https://github.com/openjdk-mirror/jdk7u-jdk/blob/f4d80957e89a19a29bb9f9807d2a28351ed7f7df/src/share/classes/java/nio/charset/Charset.java#L465-L498)
 that the `Charset` class uses.
   
   > I don't understand this sort of Windows style "startup time" optimization, 
where you hide stuff behind making running actual application code slower
   
   I don't know what you mean by "Windows style startup time optimization". Why 
would the actual actual application code now be slower?
   

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