RFR :8023563: Bottleneck in java.util.TimeZone.getDefaultInAppContext
sean.coffey at oracle.com
Mon Sep 2 18:06:49 UTC 2013
This might be a slightly easier one to read. (fast path logic code first)
On 02/09/13 16:47, Seán Coffey wrote:
> Performance regression reported where a high number of threads calling
> TimeZone.getDefault can run into a bottleneck on AppContext accessor
> calls. The bug ID is 8023563 but it's not visible on bugs.sun.com yet.
> Turns out that we're unnecessarily going through the AppContext in
> certain scenarios. Main aim is to use AppContext when using applets.
> We should check for presence of security manager (along with loading
> for AppContext class) in such cases.
> This fix is not applicable to jdk8 as new code is currently being
> worked on there which eliminates AppContext use.
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