luke @ h2678344:  $ sudo apt-get install -f openjdk-9-jdk
Read package lists ... Done
Dependency tree is built up.
Status information is read in .... Done
Proposed packages:
  VisualVM
The following NEW packages are installed:
  openjdk-9-JDK
0 updated, 1 reinstalled, 0 to remove and 1 not updated.
30 is not fully installed or removed.
You still have to download 0 B of 16.6 kB of archives.
After this operation, 58.4 kB disk space is additionally used.
(Read ... 275820 files and directories are currently installed.)
Preparing to unpack ... / openjdk-9-jdk_9 ~ b114-0ubuntu1_amd64.deb ...
Unpacking openjdk-9-jdk: amd64 (9 ~ b114-0ubuntu1) ...
dpkg: Error editing archive /var/cache/apt/archives/openjdk-9-jdk_9~b114-0ubuntu1_amd64.deb (--unpack):
 Attempt to override /usr/lib/jvm/java-9-openjdk-amd64/include/linux/jawt_md.h, which is also in package openjdk-9-jdk-headless: amd64 9 ~ b114-0ubuntu1
Errors occurred while editing:
 /var/cache/apt/archives/openjdk-9-jdk_9~b114-0ubuntu1_amd64.deb
E: Sub-process / usr / bin / dpkg returned an error code (1)
luke @ h2678344: $