Bug 57870 - backport GzipOutputFilter #doWrite to Tomcat 7 to call GZIPOutputStream to enable flushing via reflection when running on Java 7+
Summary: backport GzipOutputFilter #doWrite to Tomcat 7 to call GZIPOutputStream to en...
Status: RESOLVED FIXED
Alias: None
Product: Tomcat 7
Classification: Unclassified
Component: Connectors (show other bugs)
Version: 7.0.54
Hardware: PC Linux
: P2 enhancement (vote)
Target Milestone: ---
Assignee: Tomcat Developers Mailing List
URL:
Keywords: Beginner
Depends on:
Blocks:
 
Reported: 2015-04-29 01:26 UTC by j__n
Modified: 2017-11-30 13:42 UTC (History)
1 user (show)


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Description j__n 2015-04-29 01:26:42 UTC 
followup of https://bz.apache.org/bugzilla/show_bug.cgi?id=57866 (short version here)

FlushableGZIPOutputStream does not compress after the first flush() due to a bug in the JVM (already reported upstream).

As per https://bz.apache.org/bugzilla/show_bug.cgi?id=57866#c3 (Konstantin Kolinko):

> Tomcat 8 does not use FlushableGZIPOutputStream, but uses new Java7+ constructor for java.util.zip.GZIPOutputStream to enable flushing.

> It should be possible to backport that to Tomcat 7 to call that constructor via reflection when running on Java 7+.
Comment 1 Kapil 2017-10-17 18:53:19 UTC 
Working on it, Please bear with me.
Comment 2 Mark Thomas 2017-11-30 13:42:49 UTC 
This has been fixed for 7.0.83 onwards.