Bug#847581: jabref: doesn't always exit and throws exception upon exit

[tony mancill]

Package: jabref
Version: 3.6+ds-1
Severity: normal

In case this helps others, this is a known issue with JabRef 3.6.
When exiting jabref on some machines (but not others), it prints the
following exception and hangs with:

08:05:46.741 [AWT-EventQueue-1] DEBUG net.sf.jabref.logic.remote.server.RemoteListenerServerThread - Interrupting JabRef - Remote Listener Server on port 6050
08:05:46.741 [JabRef - FileUpdateMonitor - low prio] DEBUG net.sf.jabref.collab.FileUpdateMonitor - FileUpdateMonitor has been interrupted. Terminating...
java.lang.InterruptedException: sleep interrupted
	at java.lang.Thread.sleep(Native Method) ~[?:1.8.0_111]
	at net.sf.jabref.collab.FileUpdateMonitor.run(FileUpdateMonitor.java:43) [JabRef-3.6.jar:?]
	at net.sf.jabref.JabRefExecutorService$AutoCleanupRunnable.run(JabRefExecutorService.java:81) [JabRef-3.6.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]

The user then has to press CTRL-C before the JVM process will terminate.

Cheers,
tony

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages jabref depends on:
ii  default-jre [java8-runtime]     2:1.8-57
ii  java-wrappers                   0.1.28
ii  libandroid-json-java            7.0.0+r3-1
ii  libantlr3-runtime-java          3.5.2-6
ii  libantlr4-runtime-java          4.5.3-1
ii  libbcprov-java                  1.55-2
ii  libcommons-cli-java             1.3.1-3
ii  libcommons-lang3-java           3.5-1
ii  libcommons-logging-java         1.2-1
ii  libglazedlists-java             1.9.1-2
ii  libguava-java                   19.0-1
ii  libhttpasyncclient-java         4.1.2-1
ii  libhttpclient-java              4.5.2-2
ii  libhttpmime-java                4.5.2-2
ii  libjava-string-similarity-java  0.19-1
ii  libjempbox-java                 1:1.8.12-1
ii  libjgoodies-common-java         1.8.1-2
ii  libjgoodies-forms-java          1.9.0-3
ii  libjgoodies-looks-java          2.7.0-2
ii  libjhlabs-filters-java          2.0.235-3
ii  libjsoup-java                   1.10.1-1
ii  liblog4j2-java                  2.7-1
ii  libmicroba-java                 1:0.4.4.3-5
ii  libpdfbox-java                  1:1.8.12-1
ii  libreoffice-java-common         1:5.2.4~rc1-1
ii  libspin-java                    1.5+dfsg-8
ii  libswing-layout-java            1.0.4-4
ii  libswingx-java                  1:1.6.2-2
ii  libunirest-java-java            1.4.8-1
ii  openjdk-8-jre [java8-runtime]   8u111-b14-3

Versions of packages jabref recommends:
ii  libmysql-java            5.1.40-1
ii  libpostgresql-jdbc-java  9.2-1002-1
ii  libreoffice-writer       1:5.2.4~rc1-1
ii  xdg-utils                1.1.1-1

Versions of packages jabref suggests:
ii  evince [postscript-viewer]       3.22.1-2
ii  ghostscript [postscript-viewer]  9.20~dfsg-1
pn  xpdf | pdf-viewer                <none>

-- no debconf information