Remove_Outdated_JDKs.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>autoremove</key>
	<false/>
	<key>catalogs</key>
	<array>
		<string>testing</string>
	</array>
	<key>description</key>
	<string>This update removes insecure and outdated versions of Oracle Java JDKs. If your software stops working after this runs, please install the Oracle Java JDK v11 or higher.</string>
	<key>display_name</key>
	<string>Remove Outdated JDKs</string>
	<key>installcheck_script</key>
	<string>#!/usr/bin/python

import re
import os
import sys
from distutils.version import StrictVersion

jvm_path = "/Library/Java/JavaVirtualMachines/"
jdks = os.listdir(jvm_path)

for jdk in jdks:
        major_re = re.search('[0-9]+\.[0-9]\.[0-9]', jdk, re.IGNORECASE)
        if major_re:
                major = major_re.group(0)
        else:
                print "Skipping %s - unable to parse."

        update_re = re.search('\_[0-9]+', jdk, re.IGNORECASE)
        if update_re:
                update = update_re.group(0).replace("_", "")

        if StrictVersion(major) &lt; StrictVersion("11.0.0"):
		print "Found JDK %su%s - needs removal." % (major, update)
		sys.exit(0)
	else:
		continue

sys.exit(1)
</string>
	<key>installer_type</key>
	<string>nopkg</string>
	<key>minimum_os_version</key>
	<string>10.4.0</string>
	<key>name</key>
	<string>Remove Outdated JDKs</string>
	<key>notes</key>
	<string>This nopkg uninstalls any Oracle Java JDK version older than 11.0.0 that may be installed on a user’s machine. Since Oracle is requiring licensing payments for using anything older than 11 now, we need to make sure we are in compliance by uninstalling old versions.

If Oracle changes their version support matrix in the future, simply bump the strict version compare up to the desired minimum and the script will re-process.</string>
	<key>postinstall_script</key>
	<string>#!/usr/bin/python

"""Removes all Oracle JDKs from the user's machine."""
import sys
import os
import shutil
import subprocess
import re
from distutils.version import StrictVersion

jvm_path = "/Library/Java/JavaVirtualMachines/"
jdks = os.listdir(jvm_path)

for jdk in jdks:
        major_re = re.search('[0-9]+\.[0-9]\.[0-9]', jdk, re.IGNORECASE)
	if major_re:
		major = major_re.group(0)
	else:
		print "Skipping %s - unable to parse."

	update_re = re.search('\_[0-9]+', jdk, re.IGNORECASE)
	if update_re:
		update = update_re.group(0).replace("_", "")

	if StrictVersion(major) &lt; StrictVersion("11.0.0"):
		print "Removing %s" % jdk
		shutil.rmtree(os.path.join(jvm_path, jdk))

		version = major.split(".")[1]
		receipt_id = "com.oracle.jdk%su%s" % (version, update)

		cmd = ['/usr/sbin/pkgutil', '--pkgs='+receipt_id]
		if subprocess.call(cmd):
			print "No receipt found for %s" % receipt_id
		else:
			print "Forgetting pkg receipt %s" % receipt_id
			cmd = ['/usr/sbin/pkgutil', '--forget', receipt_id]
			sp = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
			out, err = sp.communicate()
			if err:
				print err
				sys.exit(-1)
			else:
				print "Skipping %s" % jdk
				continue
</string>
	<key>version</key>
	<string>1.0</string>
</dict>
</plist>