Aplicación de SQL SQLDeveloper atascado en el Dock después de que la aplicación se cerró, proceso muerto

Acabo de comenzar a experimentar un error en el que el icono de la aplicación SQLDeveloper 4.1.3 (más reciente) se congela en el dock de Mac OS. Esto me impide reiniciar la aplicación sin reiniciar la computadora.

sqldeveloper in dock

El Monitor de actividad no muestra ninguna aplicación en ejecución.

P1105S123LT3:~ dan$ ps -A | grep SQL
  569 ??         0:00.01 /bin/bash /Applications/SQLDeveloper.app/Contents/MacOS/sqldeveloper.sh
4330 ??         0:39.13 /Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home/bin/java -Xbootclasspath/a:/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home/lib/tools.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home/lib/dt.jar -Djdeveloper.system_http_proxy=DIRECT -Djdeveloper.system_http_non_proxy_hosts= -Dsun.java2d.noddraw=true -Dnetbeans.home=../../ide/bin/../../netbeans/platform/ -Dnetbeans.logger.console=true -Dexcluded.modules=org.eclipse.osgi -Dide.cluster.dirs=../../ide/bin/../../netbeans/fcpbridge/:../../ide/bin/../../netbeans/ide/:../../ide/bin/../../netbeans/../ -Xverify:none -Doracle.ide.extension.HooksProcessingMode=LAZY -Dorg.eclipse.equinox.simpleconfigurator.configUrl=file:bundles.info -Dosgi.bundles.defaultStartLevel=1 -Dosgi.configuration.cascaded=false -Dosgi.noShutdown=true -Dorg.osgi.framework.bootdelegation=* -Dosgi.parentClassloader=app -Dosgi.locking=none -Dosgi.contextClassLoaderParent=app -Xbootclasspath/p:../../ide/bin/../../rdbms/jlib/ojdi.jar -Dosgi.classloader.type=parallel -Dosgi.bundlefile.limit=500 -Dide.feedback-server=ide.us.oracle.com -Djavax.xml.transform.TransformerFactory=oracle.ide.xml.switchable.SwitchableTransformerFactory -Djavax.xml.stream.XMLInputFactory=com.ctc.wstx.stax.WstxInputFactory -Djavax.xml.stream.util.XMLEventAllocator=oracle.ideimpl.xml.stream.XMLEventAllocatorImpl -Doracle.ide.reportEDTViolations=bug -Doracle.ide.reportEDTViolations.exceptionsfile=../../ide/bin/../../ide/bin/swing-thread-violations.conf -Xms128M -Xmx800M -Doracle.ide.IdeFrameworkCommandLineOptions=-clean,-console,-debugmode,-migrate,-migrate:,-nomigrate,-nonag,-nondebugmode,-noreopen,-nosplash,-role:,-su -Dide.update.usage.servers=http://www.oracle.com/webfolder/technetwork/sqldeveloper/usage.xml -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_FLAG=true -Dsun.java2d.ddoffscreen=false -Dwindows.shell.font.languages= -Doracle.ide.startup.features=sqldeveloper -Doracle.ide.osgi.boot.api.OJStartupHook=oracle.dbtools.raptor.startup.HomeSupport -Doracle.jdbc.mapDateToTimestamp=false -Doracle.jdbc.autoCommitSpecCompliant=false -Doracle.jdbc.useFetchSizeWithLongColumn=true -Dsun.locale.formatasdefault=true -Dorg.netbeans.CLIHandler.server=false -Dide.AssertTracingDisabled=true -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_FLAG=true -Djava.util.logging.config.file=logging.conf -Dsqldev.debug=false -Dsqldev.onsd=true -Dcom.apple.mrj.application.apple.menu.about.name=SQL_Developer -Dcom.apple.mrj.application.growbox.intrudes=false -Dcom.apple.macos.smallTabs=true -Dapple.laf.useScreenMenuBar=true -Xdock:name=Oracle SQL Developer -Xdock:icon=SQLDeveloperIcons.icns -Xbootclasspath/p:../../rdbms/jlib/ojdi.jar -Dide.conf="/Applications/SQLDeveloper.app/Contents/Resources/sqldeveloper/sqldeveloper/bin/sqldeveloper.conf" -Duser.conf="/Users/dan/.sqldeveloper/4.1.0/product.conf" -Dtool.user.conf="/Users/dan/.sqldeveloper/4.1.0/sqldeveloper.conf" -Dide.startingcwd="/Applications/SQLDeveloper.app/Contents/Resources/sqldeveloper/sqldeveloper/bin" -classpath ../../ide/bin/../../ide/lib/ide-boot.jar:../../ide/bin/../../netbeans/platform/lib/boot.jar:../../ide/bin/../../netbeans/platform/lib/org-openide-util-ui.jar:../../ide/bin/../../netbeans/platform/lib/org-openide-util.jar:../../ide/bin/../../netbeans/platform/lib/org-openide-util-lookup.jar:../../ide/bin/../../netbeans/platform/lib/org-openide-modules.jar:../../ide/bin/../../ide/lib/fcpboot.jar:../../ide/bin/../../ide/lib/xml-factory.jar:../../ide/bin/../../ide/lib/woodstox-core-asl-4.2.0.jar:../../ide/bin/../../ide/lib/stax2-api-3.1.1.jar:../lib/oracle.sqldeveloper.homesupport.jar oracle.ide.osgi.boot.OracleIdeLauncher
4536 ttys000    0:00.00 grep SQL
P1105S123LT3:~ dan$ ps -A | grep SQL
4560 ttys000    0:00.00 grep SQL


P1105S123LT3:~ dan$ kill -9 4330
-bash: kill: (4330) - No such process
P1105S123LT3:~ dan$ kill -9 569
-bash: kill: (569) - No such process
P1105S123LT3:~ dan$

When I run directly from shell, it launches
P1105S123LT3:~ dan$ /Applications/SQLDeveloper.app/Contents/MacOS/sqldeveloper.sh
When I kill it from another terminal window :

P1105S123LT3:~ dan$ kill -9 12148
The shell from which I launched it returns this:

/Applications/SQLDeveloper.app/Contents/Resources/sqldeveloper/sqldeveloper/bin/../../ide/bin/launcher.sh: line 1286: 12148 Killed: 9               ${JAVA} "${APP_VM_OPTS[@]}" ${APP_ENV_VARS} -classpath ${APP_CLASSPATH} ${APP_MAIN_CLASS} "${APP_APP_OPTS[@]}"
P1105S123LT3:~ dan$
P1105S123LT3:~ dan$
P1105S123LT3:~ dan$

He intentado killall Dock que no lo ha borrado. Me he cansado de borrar /Users/dan/Library/Preferences/com.apple.dock.plist

Todavía no puedo borrar la aplicación del dock ....

¿Alguna idea?