On Thursday, May 31, 2012 03:22:35 AM mike.dui...@oracle.com wrote: > Changeset: 2c773daa825d > Author: mduigou > Date: 2012-05-17 10:06 -0700 > URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/2c773daa825d > > 6924259: Remove offset and count fields from java.lang.String > Summary: Removes the use of shared character array buffers by String along > with the two fields needed to support the use of shared buffers.
Wow, that's quite a change. So .substring() is not O(1) any more? Doesn't this have impact on the performance of parsers and such that rely on the performance caracteristics of the .substring() ? Have you considered then implementing .subSequence() not in terms of just delegating to .substring() but returning a special CharSequence view over the chars of the sub-sequence? Regards, Peter > Reviewed-by: alanb, mduigou, forax, briangoetz > Contributed-by: brian.dohe...@oracle.com > > ! src/share/classes/java/lang/Integer.java > ! src/share/classes/java/lang/Long.java > ! src/share/classes/java/lang/String.java > ! src/share/classes/java/lang/StringCoding.java
