when shutdown karaf, see java.io.InterruptedIOException: null in the log

2017-09-05 15:24:03,418 | WARN  | l console user karaf | o.j.r.i.TerminalConnection       | 141 - org.apache.karaf.shell.aesh-jline - 4.2.0.SNAPSHOT | Failed while reading, exiting
java.io.InterruptedIOException: null
	at org.jline.utils.NonBlockingReader.read(NonBlockingReader.java:177) [191:org.jline.terminal:3.4.0]
	at org.jline.utils.NonBlockingReader.read(NonBlockingReader.java:113) [191:org.jline.terminal:3.4.0]
	at org.jline.reader.impl.TerminalConnection.openBlocking(TerminalConnection.java:134) [141:org.apache.karaf.shell.aesh-jline:4.2.0.SNAPSHOT]
	at org.jline.reader.impl.LineReaderImpl.readInput(LineReaderImpl.java:136) [141:org.apache.karaf.shell.aesh-jline:4.2.0.SNAPSHOT]
	at org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:264) [141:org.apache.karaf.shell.aesh-jline:4.2.0.SNAPSHOT]
	at org.apache.karaf.shell.impl.console.ConsoleSessionImpl.readCommand(ConsoleSessionImpl.java:390) [143:org.apache.karaf.shell.core:4.2.0.SNAPSHOT]
	at org.apache.karaf.shell.impl.console.ConsoleSessionImpl.run(ConsoleSessionImpl.java:349) [143:org.apache.karaf.shell.core:4.2.0.SNAPSHOT]
	at org.apache.karaf.shell.impl.console.osgi.DelayedStarted.run(DelayedStarted.java:78) [143:org.apache.karaf.shell.core:4.2.0.SNAPSHOT]
	at java.lang.Thread.run(Thread.java:745) [?:?]
Caused by: java.lang.InterruptedException
	at java.lang.Object.wait(Native Method) ~[?:?]
	at org.jline.utils.NonBlockingReader.read(NonBlockingReader.java:174) ~[?:?]