Bug#851304: tomcat8 use 100% cpu time

[RickLinux]

Package: tomcat8
Version: 8.0.14-1+deb8u6
Severity: important

Dear Maintainer,

I noticed a bump in CPU load up to 100% per CPU.
It appear from tomcat8-8.0.14-1+deb8u4 and up.

Here how to create the bug.

http://localhost:8080, no problem.
https://localhost:8443, no problem (need to create a certificate).
https://localhost:8080, 100% cpu load.

I use default config coming from stable without any modification to them.
The problem still exist.

If it can help, I tried with apache-tomcat-8.0.39 from apache's site and
the server operate normaly even if I try the requests above.

RickLinux

-- System Information:
Debian Release: 8.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages tomcat8 depends on:
ii  adduser                3.113+nmu3
ii  debconf [debconf-2.0]  1.5.56
ii  tomcat8-common         8.0.14-1+deb8u6
ii  ucf                    3.0030

Versions of packages tomcat8 recommends:
ii  authbind  2.1.1

Versions of packages tomcat8 suggests:
pn  libtcnative-1     <none>
pn  tomcat8-admin     <none>
pn  tomcat8-docs      <none>
pn  tomcat8-examples  <none>
pn  tomcat8-user      <none>

-- debconf information:
  tomcat8/groupname: tomcat8
  tomcat8/javaopts: -Djava.awt.headless=true -Xmx128m -XX:+UseConcMarkSweepGC
  tomcat8/username: tomcat8