Deadlock on J11 OSX launch via eclipse when clicking on menu bar whilst example file windows are opening

Start jalview and immediatly try to open dropdown menus when the Jalvie desktop menubar appears. Reproducibly deadlocks - particularly when exampleFile_2_7.jvp is opened.

Thread dump from jvisualvm suggests due to multiple threads operating on LaF & gui at same time..
"Attach Listener" #41 daemon prio=9 os_prio=31 cpu=120.11ms elapsed=7.29s tid=0x00007f8a97a9f800 nid=0x11a0b waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
        - None

"RMI TCP Accept-0" #42 daemon prio=9 os_prio=31 cpu=1.89ms elapsed=6.21s tid=0x00007f8a9fa98800 nid=0x1f40b runnable [0x0000700004ae9000]
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(java.base@11.0.13/Native Method)
        at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.13/AbstractPlainSocketImpl.java:458)
        at java.net.ServerSocket.implAccept(java.base@11.0.13/ServerSocket.java:565)
        at java.net.ServerSocket.accept(java.base@11.0.13/ServerSocket.java:533)
        at sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(jdk.management.agent@11.0.13/LocalRMIServerSocketFactory.java:52)
        at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(java.rmi@11.0.13/TCPTransport.java:394)
        at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(java.rmi@11.0.13/TCPTransport.java:366)
        at java.lang.Thread.run(java.base@11.0.13/Thread.java:829)

   Locked ownable synchronizers:
        - None

"RMI TCP Connection(1)-192.168.1.108" #43 daemon prio=9 os_prio=31 cpu=116.50ms elapsed=6.15s tid=0x00007f8a9fa5a000 nid=0xce0f runnable [0x0000700005917000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(java.base@11.0.13/Native Method)
        at java.net.SocketInputStream.socketRead(java.base@11.0.13/SocketInputStream.java:115)
        at java.net.SocketInputStream.read(java.base@11.0.13/SocketInputStream.java:168)
        at java.net.SocketInputStream.read(java.base@11.0.13/SocketInputStream.java:140)
        at java.io.BufferedInputStream.fill(java.base@11.0.13/BufferedInputStream.java:252)
        at java.io.BufferedInputStream.read(java.base@11.0.13/BufferedInputStream.java:271)
        - locked <0x00000007114db8c8> (a java.io.BufferedInputStream)
        at java.io.FilterInputStream.read(java.base@11.0.13/FilterInputStream.java:83)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(java.rmi@11.0.13/TCPTransport.java:544)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(java.rmi@11.0.13/TCPTransport.java:796)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(java.rmi@11.0.13/TCPTransport.java:677)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$404/0x00000008005e3c40.run(java.rmi@11.0.13/Unknown Source)
        at java.security.AccessController.doPrivileged(java.base@11.0.13/Native Method)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(java.rmi@11.0.13/TCPTransport.java:676)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.13/ThreadPoolExecutor.java:1128)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.13/ThreadPoolExecutor.java:628)
        at java.lang.Thread.run(java.base@11.0.13/Thread.java:829)

   Locked ownable synchronizers:
        - <0x0000000711401890> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"RMI Scheduler(0)" #44 daemon prio=9 os_prio=31 cpu=0.27ms elapsed=6.12s tid=0x00007f8a9f9a2800 nid=0x7f07 waiting on condition [0x0000700005c22000]
   java.lang.Thread.State: TIMED_WAITING (parking)
        at jdk.internal.misc.Unsafe.park(java.base@11.0.13/Native Method)
        - parking to wait for <0x00000007115f6498> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.parkNanos(java.base@11.0.13/LockSupport.java:234)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(java.base@11.0.13/AbstractQueuedSynchronizer.java:2123)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@11.0.13/ScheduledThreadPoolExecutor.java:1182)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(java.base@11.0.13/ScheduledThreadPoolExecutor.java:899)
        at java.util.concurrent.ThreadPoolExecutor.getTask(java.base@11.0.13/ThreadPoolExecutor.java:1054)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(java.base@11.0.13/ThreadPoolExecutor.java:1114)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(java.base@11.0.13/ThreadPoolExecutor.java:628)
        at java.lang.Thread.run(java.base@11.0.13/Thread.java:829)

   Locked ownable synchronizers:
        - None

"JMX server connection timeout 45" #45 daemon prio=9 os_prio=31 cpu=4.50ms elapsed=6.11s tid=0x00007f8a97a98000 nid=0x8207 in Object.wait() [0x000070000643a000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(java.base@11.0.13/Native Method)
        - waiting on <no object reference available>
        at com.sun.jmx.remote.internal.ServerCommunicatorAdmin$Timeout.run(java.management@11.0.13/ServerCommunicatorAdmin.java:171)
        - waiting to re-lock in wait() <0x00000007113297e8> (a [I)
        at java.lang.Thread.run(java.base@11.0.13/Thread.java:829)

   Locked ownable synchronizers:
        - None

"VM Thread" os_prio=31 cpu=116.44ms elapsed=122.23s tid=0x00007f8a958e4800 nid=0x3303 runnable

"GC Thread#0" os_prio=31 cpu=29.06ms elapsed=122.25s tid=0x00007f8a95010800 nid=0x5003 runnable

"GC Thread#1" os_prio=31 cpu=29.42ms elapsed=121.51s tid=0x00007f8a9737d000 nid=0xd703 runnable

"GC Thread#2" os_prio=31 cpu=27.24ms elapsed=121.51s tid=0x00007f8a9a0a8800 nid=0x12f03 runnable

"GC Thread#3" os_prio=31 cpu=30.31ms elapsed=121.51s tid=0x00007f8a9737d800 nid=0xd903 runnable

"GC Thread#4" os_prio=31 cpu=28.26ms elapsed=121.51s tid=0x00007f8a988da800 nid=0xdb03 runnable

"GC Thread#5" os_prio=31 cpu=29.36ms elapsed=121.51s tid=0x00007f8a99881800 nid=0xdc03 runnable

"GC Thread#6" os_prio=31 cpu=18.43ms elapsed=120.10s tid=0x00007f8a97627000 nid=0x15813 runnable

"GC Thread#7" os_prio=31 cpu=19.25ms elapsed=120.10s tid=0x00007f8a95e0f800 nid=0x1fd03 runnable

"G1 Main Marker" os_prio=31 cpu=0.76ms elapsed=122.25s tid=0x00007f8a9883d800 nid=0x4f03 runnable

"G1 Conc#0" os_prio=31 cpu=27.02ms elapsed=122.25s tid=0x00007f8a95011800 nid=0x4e03 runnable

"G1 Conc#1" os_prio=31 cpu=27.04ms elapsed=121.27s tid=0x00007f8a973b3000 nid=0x1341f runnable

"G1 Refine#0" os_prio=31 cpu=7.24ms elapsed=122.25s tid=0x00007f8a958bb000 nid=0x4c03 runnable

"G1 Refine#1" os_prio=31 cpu=4.20ms elapsed=121.51s tid=0x00007f8a9a0b4800 nid=0x1290b runnable

"G1 Refine#2" os_prio=31 cpu=1.65ms elapsed=120.09s tid=0x00007f8a9762b000 nid=0x15707 runnable

"G1 Refine#3" os_prio=31 cpu=0.82ms elapsed=120.09s tid=0x00007f8a99895000 nid=0x1fa07 runnable

"G1 Young RemSet Sampling" os_prio=31 cpu=21.74ms elapsed=122.25s tid=0x00007f8a958bb800 nid=0x4a03 runnable
"VM Periodic Task Thread" os_prio=31 cpu=63.60ms elapsed=122.18s tid=0x00007f8a9502f000 nid=0x5c03 waiting on condition

JNI global refs: 158, weak refs: 177