/usr/share/maven-repo/com/sun/ is in libmail-java 1.5.6-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/com/sun/mail/
/usr/share/maven-repo/com/sun/mail/all/
/usr/share/maven-repo/com/sun/mail/all/1.5.6/
/usr/share/maven-repo/com/sun/mail/all/1.5.6/all-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/all/debian/
/usr/share/maven-repo/com/sun/mail/all/debian/all-debian.pom
/usr/share/maven-repo/com/sun/mail/dsn/
/usr/share/maven-repo/com/sun/mail/dsn/1.5.6/
/usr/share/maven-repo/com/sun/mail/dsn/1.5.6/dsn-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/dsn/1.5.6/dsn-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/dsn/debian/
/usr/share/maven-repo/com/sun/mail/dsn/debian/dsn-debian.jar
/usr/share/maven-repo/com/sun/mail/dsn/debian/dsn-debian.pom
/usr/share/maven-repo/com/sun/mail/gimap/
/usr/share/maven-repo/com/sun/mail/gimap/1.5.6/
/usr/share/maven-repo/com/sun/mail/gimap/1.5.6/gimap-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/gimap/1.5.6/gimap-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/gimap/debian/
/usr/share/maven-repo/com/sun/mail/gimap/debian/gimap-debian.jar
/usr/share/maven-repo/com/sun/mail/gimap/debian/gimap-debian.pom
/usr/share/maven-repo/com/sun/mail/imap/
/usr/share/maven-repo/com/sun/mail/imap/1.5.6/
/usr/share/maven-repo/com/sun/mail/imap/1.5.6/imap-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/imap/1.5.6/imap-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/imap/debian/
/usr/share/maven-repo/com/sun/mail/imap/debian/imap-debian.jar
/usr/share/maven-repo/com/sun/mail/imap/debian/imap-debian.pom
/usr/share/maven-repo/com/sun/mail/javax.mail/
/usr/share/maven-repo/com/sun/mail/javax.mail/1.5.6/
/usr/share/maven-repo/com/sun/mail/javax.mail/1.5.6/javax.mail-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/javax.mail/1.5.6/javax.mail-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/javax.mail/debian/
/usr/share/maven-repo/com/sun/mail/javax.mail/debian/javax.mail-debian.jar
/usr/share/maven-repo/com/sun/mail/javax.mail/debian/javax.mail-debian.pom
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/1.5.6/
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/1.5.6/logging-mailhandler-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/1.5.6/logging-mailhandler-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/debian/
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/debian/logging-mailhandler-debian.jar
/usr/share/maven-repo/com/sun/mail/logging-mailhandler/debian/logging-mailhandler-debian.pom
/usr/share/maven-repo/com/sun/mail/mailapi/
/usr/share/maven-repo/com/sun/mail/mailapi/1.5.6/
/usr/share/maven-repo/com/sun/mail/mailapi/1.5.6/mailapi-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/mailapi/1.5.6/mailapi-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/mailapi/debian/
/usr/share/maven-repo/com/sun/mail/mailapi/debian/mailapi-debian.jar
/usr/share/maven-repo/com/sun/mail/mailapi/debian/mailapi-debian.pom
/usr/share/maven-repo/com/sun/mail/pop3/
/usr/share/maven-repo/com/sun/mail/pop3/1.5.6/
/usr/share/maven-repo/com/sun/mail/pop3/1.5.6/pop3-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/pop3/1.5.6/pop3-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/pop3/debian/
/usr/share/maven-repo/com/sun/mail/pop3/debian/pop3-debian.jar
/usr/share/maven-repo/com/sun/mail/pop3/debian/pop3-debian.pom
/usr/share/maven-repo/com/sun/mail/smtp/
/usr/share/maven-repo/com/sun/mail/smtp/1.5.6/
/usr/share/maven-repo/com/sun/mail/smtp/1.5.6/smtp-1.5.6.jar
/usr/share/maven-repo/com/sun/mail/smtp/1.5.6/smtp-1.5.6.pom
/usr/share/maven-repo/com/sun/mail/smtp/debian/
/usr/share/maven-repo/com/sun/mail/smtp/debian/smtp-debian.jar
/usr/share/maven-repo/com/sun/mail/smtp/debian/smtp-debian.pom