package openjdk-6-jre-headless 6b20-1.10~pre1-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/lib/jvm/java-6-openjdk/man/man1/java.1.gz', which is also in package openjdk-6-jdk 6b20-1.10~pre1-0ubuntu1

[Anders Kaseorg]

 Preparing to replace openjdk-6-jre-headless 6b20-1.10~pre1-0ubuntu1 (using .../
openjdk-6-jre-headless_6b20-1.10~pre2-0ubuntu2_amd64.deb) ...
 Unpacking replacement openjdk-6-jre-headless ...
 dpkg: error processing /var/cache/apt/archives/openjdk-6-jre-headless_6b20-1.10
~pre2-0ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/lib/jvm/java-6-openjdk/man/man1/java.1.gz', which is
 also in package openjdk-6-jdk 6b20-1.10~pre1-0ubuntu1

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: openjdk-6-jre-headless 6b20-1.10~pre1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: openafs wl
AptOrdering:
 icedtea-6-jre-cacao: Remove
 openjdk-6-jre-headless: Install
 openjdk-6-jre-headless: Configure
Architecture: amd64
Date: Thu Oct 21 13:45:08 2010
ErrorMessage: trying to overwrite '/usr/lib/jvm/java-6-openjdk/man/man1/java.1.gz', which is also in package openjdk-6-jdk 6b20-1.10~pre1-0ubuntu1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate amd64 (20091020.3)
SourcePackage: openjdk-6
Title: package openjdk-6-jre-headless 6b20-1.10~pre1-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/lib/jvm/java-6-openjdk/man/man1/java.1.gz', which is also in package openjdk-6-jdk 6b20-1.10~pre1-0ubuntu1