[OpenJDK 2D-Dev] [9] RFR JDK-6591280: getting IPP connection causes disabling jar caches

[Jayathirth D V]

Hi Prasanta,

 

Changes are looking fine.

 

Thanks,

Jay

 

From: Prasanta Sadhukhan 
Sent: Monday, July 25, 2016 3:28 PM
To: Philip Race; 2d-dev
Subject: [OpenJDK 2D-Dev] [9] RFR JDK-6591280: getting IPP connection causes disabling jar caches

 

Hi All,

Please review a fix for jdk9 where it is seen that we are unnecessarily disabling jar caching for entire JVM execution 
when a IPPConnection is established, which is wrong.

Bug: https://bugs.openjdk.java.net/browse/JDK-6591280
webrev: http://cr.openjdk.java.net/~psadhukhan/6591280/webrev.00/

When IPPService.getIPPConnection(URL url) is called, we call connection.setDefaultUsesCaches(false) [in addition to connection.setUseCaches(false);] 
where "connection" is instance of HttpUrlConnection.
Calling this setDefaultUsesCaches(false) will result in disabling URLConnection's useCaches flag and as spec states "This flag applies to the next, and all following URLConnections that are created"
so jar caching will be disabled for subsequent URLConnections too.

Proposed fix is to remove this setting of disabling jvm-wide jar caching.

Regards
Prasanta
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