/etc/java/security/classpath.security is in libgcj-common 1:4.8.2-1ubuntu6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | # classpath.security
# Copyright (C) 2002, 2006 Free Software Foundation, Inc.
#
# This file is part of GNU Classpath.
#
# GNU Classpath is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# GNU Classpath is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Classpath; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA.
#
# Linking this library statically or dynamically with other modules is
# making a combined work based on this library. Thus, the terms and
# conditions of the GNU General Public License cover the whole
# combination.
#
# As a special exception, the copyright holders of this library give you
# permission to link this library with independent modules to produce an
# executable, regardless of the license terms of these independent
# modules, and to copy and distribute the resulting executable under
# terms of your choice, provided that you also meet, for each linked
# independent module, the terms and conditions of the license of that
# module. An independent module is a module which is not derived from
# or based on this library. If you modify this library, you may extend
# this exception to your version of the library, but you are not
# obligated to do so. If you do not wish to do so, delete this
# exception statement from your version.
# The VM-wide default callback handler class name. MUST be a subclass of
# javax.security.auth.callback.CallbackHandler
auth.login.defaultCallbackHandler=gnu.javax.security.auth.callback.DefaultCallbackHandler
# If this file isn't found we fall back to generating entropy through
# "battling threads".
securerandom.source=file:///dev/urandom
# Note that the settings and ordering here are mirrored in Security.
security.provider.1=gnu.java.security.provider.Gnu
security.provider.2=gnu.javax.crypto.jce.GnuCrypto
security.provider.3=gnu.javax.crypto.jce.GnuSasl
security.provider.4=gnu.javax.net.ssl.provider.Jessie
security.provider.5=gnu.javax.security.auth.callback.GnuCallbacks
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