195351 - isValidPort('/dev/cu.serial-0001')?: false -1
195356 - isValidPort('/dev/cu.SLAB_USBtoUART')?: false -1
195360 - isValidPort('/dev/cu.iBTAGPS-SPPslave')?: false -1
195367 - isValidPort('/dev/ttyUSB0')?: false -1
195374 - isValidPort('/dev/ttyUSB1')?: false -1
195378 - isValidPort('/dev/ttyUSB2')?: false -1
195383 - isValidPort('/dev/ttyUSB3')?: false -1
195401 - isValidPort('/dev/ttyUSB4')?: false -1
195404 - isValidPort('/dev/ttyUSB5')?: false -1
195408 - isValidPort('/dev/ttyACM0')?: false -1
195412 - isValidPort('/dev/ttyACM1')?: false -1
195416 - isValidPort('/dev/ttyACM2')?: false -1
195425 - isValidPort('/dev/ttyACM3')?: false -1
195433 - isValidPort('/dev/ttyACM4')?: false -1
195438 - isValidPort('/dev/ttyACM5')?: false -1
195442 - isValidPort('/dev/cu.usbmodem1b10')?: false -1
195447 - isValidPort('/dev/cu.usbmodem1d10')?: false -1
195453 - isValidPort('/dev/cu.usbmodem3d10')?: false -1
195461 - isValidPort('/dev/cu.usbmodem3a20')?: false -1
195465 - isValidPort('/dev/cu.usbmodem620')?: false -1
Info: trying to open 'null'

gnu.io.NoSuchPortException
    at gnu.io.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.java:218)
    at gps.connection.GPSRxTxPort.openPort(Unknown Source)
    at gps.connection.GPSrxtx.myOpenPort(Unknown Source)
    at gps.connection.GPSrxtx.setUSBAndOpen(Unknown Source)
    at bt747.model.Controller.setUsb(Unknown Source)
    at bt747.j2se_view.BT747Main.access$300(Unknown Source)
    at bt747.j2se_view.BT747Main$7.actionPerformed(Unknown Source)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$000(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.awt.EventQueue$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.awt.EventQueue$2.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
195480 -
Listing known ports: