This file is indexed.

prerm is in openjdk-9-jdk-headless 9~b114-0ubuntu1.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
#!/bin/sh -e

set -e

jdk_hl_tools='jlink idlj jdeps wsimport rmic jinfo jsadebugd jstat javac javah jhsdb jstack jrunscript javadoc jmod javap jar policytool schemagen jshell jps xjc jarsigner jmap jimage jstatd jdb serialver wsgen jcmd'
basedir=/usr/lib/jvm/java-9-openjdk-amd64


if [ "$1" = "remove" ] || [ "$1" = "deconfigure" ]; then
    for i in $jdk_hl_tools; do
	update-alternatives --remove $i $basedir/bin/$i
    done
fi